Initial commit

This commit is contained in:
bytedream 2022-04-28 20:01:08 +02:00
commit 0873cadc4c
22 changed files with 2642 additions and 0 deletions

0
.idea/.gitignore vendored Normal file
View File

6
.idea/discord.xml Normal file
View File

@ -0,0 +1,6 @@
<?xml version="1.0" encoding="UTF-8"?>
<project version="4">
<component name="DiscordProjectSettings">
<option name="show" value="PROJECT_FILES" />
</component>
</project>

8
.idea/modules.xml Normal file
View File

@ -0,0 +1,8 @@
<?xml version="1.0" encoding="UTF-8"?>
<project version="4">
<component name="ProjectModuleManager">
<modules>
<module fileurl="file://$PROJECT_DIR$/.idea/sshoneypot.iml" filepath="$PROJECT_DIR$/.idea/sshoneypot.iml" />
</modules>
</component>
</project>

110
.idea/workspace.xml Normal file
View File

@ -0,0 +1,110 @@
<?xml version="1.0" encoding="UTF-8"?>
<project version="4">
<component name="ChangeListManager">
<list default="true" id="84062d71-ebe8-4cc4-8ed7-9375510de988" name="Default Changelist" comment="" />
<option name="SHOW_DIALOG" value="false" />
<option name="HIGHLIGHT_CONFLICTS" value="true" />
<option name="HIGHLIGHT_NON_ACTIVE_CHANGELIST" value="false" />
<option name="LAST_RESOLUTION" value="IGNORE" />
</component>
<component name="FileTemplateManagerImpl">
<option name="RECENT_TEMPLATES">
<list>
<option value="Go Application" />
<option value="Go File" />
</list>
</option>
</component>
<component name="GOROOT" url="file:///usr/lib/go" />
<component name="Git.Settings">
<option name="RECENT_GIT_ROOT_PATH" value="$PROJECT_DIR$" />
</component>
<component name="GitSEFilterConfiguration">
<file-type-list>
<filtered-out-file-type name="LOCAL_BRANCH" />
<filtered-out-file-type name="REMOTE_BRANCH" />
<filtered-out-file-type name="TAG" />
<filtered-out-file-type name="COMMIT_BY_MESSAGE" />
</file-type-list>
</component>
<component name="GoLibraries">
<option name="indexEntireGoPath" value="false" />
</component>
<component name="ProjectId" id="1pZZ5aRCduBrvaNLZvRCKVbHVxi" />
<component name="ProjectLevelVcsManager" settingsEditedManually="true" />
<component name="ProjectViewState">
<option name="hideEmptyMiddlePackages" value="true" />
<option name="showLibraryContents" value="true" />
</component>
<component name="PropertiesComponent">
<property name="DefaultGoTemplateProperty" value="Go File" />
<property name="RunOnceActivity.OpenProjectViewOnStart" value="true" />
<property name="RunOnceActivity.ShowReadmeOnStart" value="true" />
<property name="WebServerToolWindowFactoryState" value="false" />
<property name="dart.analysis.tool.window.visible" value="false" />
<property name="go.import.settings.migrated" value="true" />
<property name="go.sdk.automatically.set" value="true" />
<property name="last_opened_file_path" value="$PROJECT_DIR$" />
<property name="settings.editor.selected.configurable" value="preferences.pluginManager" />
</component>
<component name="RecentsManager">
<key name="MoveFile.RECENT_KEYS">
<recent name="$PROJECT_DIR$/sshoneypot/info" />
<recent name="$PROJECT_DIR$/sshoneypot" />
<recent name="$PROJECT_DIR$" />
</key>
</component>
<component name="RunManager" selected="Go Build.go build github.com/bytedream/sshoneypot">
<configuration name="go build github.com/bytedream/sshoneypot" type="GoApplicationRunConfiguration" factoryName="Go Application" temporary="true" nameIsGenerated="true">
<module name="sshoneypot" />
<working_directory value="$PROJECT_DIR$" />
<kind value="PACKAGE" />
<package value="github.com/bytedream/sshoneypot" />
<directory value="$PROJECT_DIR$" />
<filePath value="$PROJECT_DIR$/main.go" />
<method v="2" />
</configuration>
<configuration name="dump_fs" type="PythonConfigurationType" factoryName="Python" temporary="true" nameIsGenerated="true">
<module name="sshoneypot" />
<option name="INTERPRETER_OPTIONS" value="" />
<option name="PARENT_ENVS" value="true" />
<envs>
<env name="PYTHONUNBUFFERED" value="1" />
</envs>
<option name="SDK_HOME" value="" />
<option name="WORKING_DIRECTORY" value="$PROJECT_DIR$" />
<option name="IS_MODULE_SDK" value="true" />
<option name="ADD_CONTENT_ROOTS" value="true" />
<option name="ADD_SOURCE_ROOTS" value="true" />
<option name="SCRIPT_NAME" value="$PROJECT_DIR$/dump_fs.py" />
<option name="PARAMETERS" value="" />
<option name="SHOW_COMMAND_LINE" value="false" />
<option name="EMULATE_TERMINAL" value="false" />
<option name="MODULE_MODE" value="false" />
<option name="REDIRECT_INPUT" value="false" />
<option name="INPUT_FILE" value="" />
<method v="2" />
</configuration>
<recent_temporary>
<list>
<item itemvalue="Go Build.go build github.com/bytedream/sshoneypot" />
</list>
</recent_temporary>
</component>
<component name="SpellCheckerSettings" RuntimeDictionaries="0" Folders="0" CustomDictionaries="0" DefaultDictionary="application-level" UseSingleDictionary="true" transferred="true" />
<component name="TypeScriptGeneratedFilesManager">
<option name="version" value="3" />
</component>
<component name="Vcs.Log.Tabs.Properties">
<option name="TAB_STATES">
<map>
<entry key="MAIN">
<value>
<State />
</value>
</entry>
</map>
</option>
<option name="oldMeFiltersMigrated" value="true" />
</component>
</project>

143
README.md Normal file
View File

@ -0,0 +1,143 @@
# ⚠️ UNFINISHED PROJECT ⚠️
> A try to write a own ssh honeypot. Higly inspirated by [sshesame](https://github.com/jaksi/sshesame).
# sshoneypot
Go 1.10
**sshoneypot** easy is a fake ssh server that lets everyone connect, logs their activity and can be implemented easily in your project, or can be used as a standalone application.
The ssh server has a emulated, full functional linux filesystem. For more details about the filesystem see [here](info/fs.go).
It also contains some basic linux commands like `cd`, `ls` or `stat`. You can add commands by yourself too, see [here](#own-commands) how.
The project itself is just a library, but you can run it standalone via [docker](#Docker).
## Docker
## Own commands
If the standard commands aren't enough, you can easily implement you owns
```go
package main
func main() {
}
```
## Warning
This software, just like any other, might contain bugs. Given the popular nature of SSH, you probably shouldn't run it unsupervised as root on a production server on port 22. Use common sense.
## Motivation
I was just curious what all these guys were up to:
```
sshd[8128]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=<client> user=root
sshd[8128]: Failed password for root from <client> port 37510 ssh2
sshd[8128]: Received disconnect from <client> port 37510:11: [preauth]
sshd[8128]: Disconnected from <client> port 37510 [preauth]
sshd[8141]: Received disconnect from <client> port 59353:11: [preauth]
sshd[8141]: Disconnected from <client> port 59353 [preauth]
sshd[8151]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=<client> user=root
sshd[8151]: Failed password for root from <client> port 63785 ssh2
sshd[8159]: Received disconnect from <client> port 24889:11: [preauth]
sshd[8159]: Disconnected from <client> port 24889 [preauth]
```
## Details
`sshesame` accepts and logs
* every password authentication request,
* every SSH channel open request and
* every SSH request
**without actually executing anything on the host**.
For more details, read the [relevant RFC](https://tools.ietf.org/html/rfc4254).
## Installing
### From source
* [Install go](https://golang.org/doc/install) (version 1.4 or newer required)
* `go get -u github.com/jaksi/sshesame`
### Snap
`snap install sshesame`
Package created and maintained by [chadmiller](https://github.com/chadmiller).
You can find the package [here](https://code.launchpad.net/~privacy-squad/+junk/sshesame-snap).
## Examples
```go
package main
import (
"fmt"
"github.com/bytedream/sshoneypot/sshoneypot"
)
func main() {
fmt.Println("aa")
}
```
## Usage
```
$ sshesame -h
Usage of sshesame:
-host_key string
a file containing a private key to use
-json_logging
enable logging in JSON
-listen_address string
the local address to listen on (default "localhost")
-port uint
the port number to listen on (default 2022)
-server_version string
The version identification of the server (RFC 4253 section 4.2 requires that this string start with "SSH-2.0-") (default "SSH-2.0-sshesame")
```
Consider creating a private key to use with sshesame, for example using `ssh-keygen`.
## Example output
```
Connection: client=<client>:45782
Login: client=<client>:45782, user="root", password="cisco"
Established SSH connection: client=<client>:45782
New channel: clinet=<client>:45782, type=direct-tcpip, payload={DestinationAddress:<something> DestinationPort:110 SourceAddress:192.168.0.1 SourcePort:0}
Failed to read from channel: EOF
New channel: clinet=<client>:45782, type=direct-tcpip, payload={DestinationAddress:<something> DestinationPort:143 SourceAddress:192.168.0.1 SourcePort:0}
Failed to read from channel: EOF
New channel: clinet=<client>:45782, type=direct-tcpip, payload={DestinationAddress:<something> DestinationPort:587 SourceAddress:192.168.0.1 SourcePort:0}
Failed to read from channel: EOF
New channel: clinet=<client>:45782, type=direct-tcpip, payload={DestinationAddress:<something> DestinationPort:587 SourceAddress:192.168.0.1 SourcePort:0}
Failed to read from channel: EOF
New channel: clinet=<client>:45782, type=session, payload=[]
Request: client=<client>:45782, channel=session, type=exec, payload={Command:/sbin/ifconfig}
Failed to read from terminal: EOF
New channel: clinet=<client>:45782, type=session, payload=[]
Request: client=<client>:45782, channel=session, type=exec, payload={Command:cat /proc/meminfo}
Failed to read from terminal: EOF
New channel: clinet=<client>:45782, type=session, payload=[]
Request: client=<client>:45782, channel=session, type=exec, payload={Command:2>/dev/null sh -c 'cat /lib/libdl.so* || cat /lib/librt.so* || cat /bin/cat || cat /sbin/ifconfig'}
Failed to read from terminal: EOF
New channel: clinet=<client>:45782, type=session, payload=[]
Request: client=<client>:45782, channel=session, type=exec, payload={Command:cat /proc/version}
Failed to read from terminal: EOF
New channel: clinet=<client>:45782, type=session, payload=[]
Request: client=<client>:45782, channel=session, type=exec, payload={Command:uptime}
Failed to read from terminal: EOF
Disconnect: client=<client>:45782
```
So what happened here?
* A client logged in with the user "root" and the password "cisco"
* Using TCP/IP forwarding over SSH, they tried to connect to a few remote mail servers over POP3 (port 110), IMAP (port 143) and Submission (port 587)
* They tried to execute a few commands to get some information about the host
Again, if you're interested in the technical details of SSH, read the [RFC](https://tools.ietf.org/html/rfc4254).
## Inspired
This project was inspired from some the following projects
- [sshesame](https://github.com/jaksi/sshesame) (another go based fake ssh server)
## Implementation

63
dump_fs.py Normal file
View File

@ -0,0 +1,63 @@
#!/usr/bin/python3
import json
import os
import sys
excluded = ('/tmp', '/proc')
def info(file: str) -> list:
try:
stat = os.stat(file)
# this error may occur when temporary files are being passed as argument and deleted before `os.stat(...)` can read it
except FileNotFoundError:
import stat
stat.S_ISBLK()
return None
# occurs when you do not have the rights to read the given file
except PermissionError:
sys.stderr.write(f"Permission denied: '{file}'\n")
return None
type = int(oct(stat.st_mode)[2:-4])
size = stat.st_size
links = stat.st_nlink
permissions = int(oct(stat.st_mode)[-4:], 8)
creation_timestamp = int(stat.st_ctime)
# access_timestamp = stat.st_atime
# modification_timestamp = stat.st_mtime
user_id = stat.st_uid if stat.st_uid in [0, 1000] else 1000
group_id = stat.st_gid if stat.st_gid in [0, 1000] else 1000
return [type, size, links, permissions, creation_timestamp, user_id, group_id]
if __name__ == '__main__':
fs = {'files': {}, 'info': info('/')}
for root, dirs, files in os.walk('/'):
# checks if the path is in the `excluded` list and if so, it skips this iteration
if root.startswith(excluded):
continue
fs_root = fs['files']
for dir in root.split(os.sep):
if dir.startswith('/'):
dir = dir[1:]
if dir != "":
fs_root = fs_root[dir]['files']
for dir in dirs:
specs = info(os.path.join(root, dir))
fs_root[dir] = {'files': {}, 'info': specs}
for file in files:
specs = info(os.path.join(root, file))
if specs:
fs_root[file] = specs
json.dump(fs, open('fs.json', 'w+'))

41
main.go Normal file
View File

@ -0,0 +1,41 @@
package main
import (
"github.com/bytedream/sshoneypot/sshoneypot"
"github.com/bytedream/sshoneypot/sshoneypot/info"
"golang.org/x/crypto/ssh"
"io/fs"
"io/ioutil"
"os"
)
func main() {
//fmt.Println(strings.Split("/etc/aaa", string(os.PathSeparator))[1:])
/*fs, err := sshoneypot.LoadFSFromJson("fs.json")
if err != nil {
panic(err)
}
if file, ok := fs.GetFile("/etc"); ok {
d, _ := file.(sshoneypot.Directory)
fmt.Println(d.Files)
//fmt.Println(file.(sshoneypot.Directory).Files)
}*/
var key ssh.Signer
if _, err := os.Stat("ssh.key"); os.IsNotExist(err) {
privateKey, _ := sshoneypot.GenerateSSHKey()
ioutil.WriteFile("ssh.key", privateKey, fs.ModePerm)
key, _ = sshoneypot.LoadSSHKey(privateKey)
} else {
key, _ = sshoneypot.LoadSSHKeyFromFile("ssh.key")
}
filesystem, _ := info.LoadFSFromJson("fs.json")
filesystem.Manipulate = true
sshServer := sshoneypot.DefaultSSHoneypot(filesystem, key)
if err := sshServer.Serve(); err != nil {
panic(err)
}
}

27
ssh.key Executable file
View File

@ -0,0 +1,27 @@
-----BEGIN RSA PRIVATE KEY-----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-----END RSA PRIVATE KEY-----

112
sshoneypot/handle.go Normal file
View File

@ -0,0 +1,112 @@
package sshoneypot
import (
"errors"
"fmt"
"github.com/bytedream/sshoneypot/sshoneypot/info"
"golang.org/x/crypto/ssh"
)
type payloadWindowChange struct {
Width, Height uint32
// always 0
PixelWidth, PixelHeight uint32
}
type payloadPty struct {
Term string
Width, Height uint32
// always 0
PixelWidth, PixelHeight uint32
Modes []byte
}
func handleRequest(requests <-chan *ssh.Request, term *info.Termina) {
for request := range requests {
switch request.Type {
case "pty-req":
var pty payloadPty
ssh.Unmarshal(request.Payload, &pty)
term.SetSize(int(pty.Width), int(pty.Height))
case "window-change":
var windowChange payloadWindowChange
ssh.Unmarshal(request.Payload, &windowChange)
term.SetSize(int(windowChange.Width), int(windowChange.Height))
}
// sends a reply if wanted
if request.WantReply {
request.Reply(true, nil)
}
}
}
func parseCommand(command string) ([]string, error) {
var args []string
state := "start"
current := ""
quote := "\""
escapeNext := true
for i := 0; i < len(command); i++ {
c := command[i]
if state == "quotes" {
if string(c) != quote {
current += string(c)
} else {
args = append(args, current)
current = ""
state = "start"
}
continue
}
if escapeNext {
current += string(c)
escapeNext = false
continue
}
switch c {
case '\\':
escapeNext = true
continue
case '"', '\'':
state = "quotes"
quote = string(c)
continue
}
if state == "arg" {
if c == ' ' || c == '\t' {
args = append(args, current)
current = ""
state = "start"
} else {
current += string(c)
}
continue
}
if c != ' ' && c != '\t' {
state = "arg"
current += string(c)
}
}
if state == "quotes" {
return []string{}, errors.New(fmt.Sprintf("Unclosed quote in command line: %s", command))
}
if current != "" {
args = append(args, current)
}
return args, nil
}

538
sshoneypot/handler/fs.go Normal file
View File

@ -0,0 +1,538 @@
package handler
import (
"fmt"
"github.com/bytedream/sshoneypot/sshoneypot/info"
"math/rand"
"os"
"sort"
"strings"
)
func basicFileCommandParser(info *info.Info, help string, availableOptions... string) (options []string, files []string, ok bool) {
if len(info.Args) == 0 {
info.Errorln(missingOperand(info))
return nil, nil, false
} else {
for _, arg := range info.Args {
if strings.HasPrefix(arg, "-") {
hasArg := len(availableOptions) == 0
if arg == "--help" {
info.Writeln(help)
return nil, nil, false
}
for _, option := range availableOptions {
if arg == option {
hasArg = true
break
}
}
options = append(options, arg)
if !hasArg{
info.Errorlnf("%s: unrecognized option '%s'", info.Command, arg)
info.Errorlnf("Try '%s --help' for more information.", info.Command)
return nil, nil, false
}
} else {
files = append(files, arg)
}
}
}
return options, files, true
}
type Cat struct {
info.SimpleHandler
}
func (cat Cat) Handle(cmdInfo *info.Info) {
if multipleArgs(cmdInfo) {
var paths []string
for _, arg := range cmdInfo.Args {
if strings.HasPrefix(arg, "-") {
switch arg {
case "--help":
cmdInfo.Writeln(cat.help())
return
}
} else {
paths = append(paths, arg)
}
}
for _, path := range paths {
if file, ok := cmdInfo.FS.GetFile(path, false); ok {
if file.IsDir() {
cmdInfo.Writelnf("%s:%s: Is a directory", cmdInfo.Command, path)
} else {
realFile := file.(info.File)
bytes := make([]byte, realFile.Size)
// this will make the file content always the same
rand.Seed(realFile.Size + realFile.CreationTimestamp)
rand.Read(bytes)
cmdInfo.Writeln(string(bytes))
}
} else {
cmdInfo.Writeln(noSuchFileOrDirectory(path, cmdInfo))
}
}
}
}
func (cat Cat) help() string {
return `
Usage: cat [OPTION]... [FILE]...
Concatenate FILE(s) to standard output.
With no FILE, or when FILE is -, read standard input.
-A, --show-all equivalent to -vET
-b, --number-nonblank number nonempty output lines, overrides -n
-e equivalent to -vE
-E, --show-ends display $ at end of each line
-n, --number number all output lines
-s, --squeeze-blank suppress repeated empty output lines
-t equivalent to -vT
-T, --show-tabs display TAB characters as ^I
-u (ignored)
-v, --show-nonprinting use ^ and M- notation, except for LFD and TAB
--help display this help and exit
--version output version information and exit
Examples:
cat f - g Output f's contents, then standard input, then g's contents.
cat Copy standard input to standard output.
GNU coreutils online help: <https://www.gnu.org/software/coreutils/>
Report cat translation bugs to <https://translationproject.org/team/>
Full documentation at: <https://www.gnu.org/software/coreutils/cat>
or available locally via: info '(coreutils) cat invocation'`
}
type CD struct {
info.SimpleHandler
}
func (cd CD) Handle(cmdInfo *info.Info) {
if _, files, ok := basicFileCommandParser(cmdInfo, cd.help()); ok {
if len(files) != 1 {
return
} else {
path := files[0]
if _, ok := cmdInfo.FS.GetExplicitDirectory(path, true); ok {
if cmdInfo.Terminal != nil {
cmdInfo.Terminal.SetPrompt(fmt.Sprintf("%s:%s $ ", cmdInfo.User.User(), cmdInfo.FS.Cwd().Name))
}
} else {
cmdInfo.Writelnf("-bash: cd: %s: No such file or directory", path)
}
}
}
}
func (cd CD) help() string {
return `cd: cd [-L|[-P [-e]] [-@]] [dir]
Change the shell working directory.
Change the current directory to DIR. The default DIR is the value of the
HOME shell variable.
The variable CDPATH defines the search path for the directory containing
DIR. Alternative directory names in CDPATH are separated by a colon (:).
A null directory name is the same as the current directory. If DIR begins
with a slash (/), then CDPATH is not used.
If the directory is not found, and the shell option 'cdable_vars' is set,
the word is assumed to be a variable name. If that variable has a value,
its value is used for DIR.
Options:
-L force symbolic links to be followed: resolve symbolic
links in DIR after processing instances of '..'
-P use the physical directory structure without following
symbolic links: resolve symbolic links in DIR before
processing instances of '..'
-e if the -P option is supplied, and the current working
directory cannot be determined successfully, exit with
a non-zero status
-@ on systems that support it, present a file with extended
attributes as a directory containing the file attributes
The default is to follow symbolic links, as if '-L' were specified.
'..' is processed by removing the immediately previous pathname component
back to a slash or the beginning of DIR.
Exit Status:
Returns 0 if the directory is changed, and if $PWD is set successfully when
-P is used; non-zero otherwise.`
}
type LS struct {
info.SimpleHandler
}
func (ls LS) Handle(cmdInfo *info.Info) {
if len(cmdInfo.Args) == 0 {
cmdInfo.Args = []string{""}
}
if _, files, ok := basicFileCommandParser(cmdInfo, ls.help()); ok {
var errors []string
dirs := map[string]string{}
for _, dir := range files {
f, ok := cmdInfo.FS.GetFile(dir, false)
if !ok {
errors = append(errors, fmt.Sprintf("ls: cannot access '%s': No such file or directory", dir))
continue
}
switch f.(type) {
case info.Directory:
var length int
var files []string
for _, file := range f.(info.Directory).Files {
if l := len(file.Name); length < l {
length = l
}
files = append(files, file.Name)
}
length++
sort.Strings(files)
var builder strings.Builder
var perline int
if cmdInfo.Terminal.Width > 0 {
perline = int(cmdInfo.Terminal.Width) / length
} else {
perline = 80 / length
}
for i, file := range files {
if i % perline == 0 && i != 0 {
builder.WriteString("\n")
}
builder.WriteString(file + strings.Repeat(" ", length - len(file)))
}
dirs[dir] = builder.String()
case info.File:
dirs[dir] = dir
}
}
if len(dirs) == 1 && len(errors) == 0 {
for _, v := range dirs {
cmdInfo.Writeln(v)
}
} else {
var builder strings.Builder
for _, err := range errors {
builder.WriteString(err)
builder.WriteString("\n")
}
if len(errors) > 0 && len(dirs) > 0 {
builder.WriteString("\n")
}
for k, v := range dirs {
builder.WriteString(fmt.Sprintf("%s:\n", k))
builder.WriteString(v)
builder.WriteString("\n")
}
cmdInfo.Write(builder.String())
}
}
}
func (ls LS) help() string {
return `Usage: ls [OPTION]... [FILE]...
List information about the FILEs (the current directory by default).
Sort entries alphabetically if none of -cftuvSUX nor --sort is specified.
Mandatory arguments to long options are mandatory for short options too.
-a, --all do not ignore entries starting with .
-A, --almost-all do not list implied . and ..
--author with -l, print the author of each file
-b, --escape print C-style escapes for nongraphic characters
--block-size=SIZE with -l, scale sizes by SIZE when printing them;
e.g., '--block-size=M'; see SIZE format below
-B, --ignore-backups do not list implied entries ending with ~
-c with -lt: sort by, and show, ctime (time of last
modification of file status information);
with -l: show ctime and sort by name;
otherwise: sort by ctime, newest first
-C list entries by columns
--color[=WHEN] colorize the output; WHEN can be 'always' (default
if omitted), 'auto', or 'never'; more info below
-d, --directory list directories themselves, not their contents
-D, --dired generate output designed for Emacs' dired mode
-f do not sort, enable -aU, disable -ls --color
-F, --classify append indicator (one of */=>@|) to entries
--file-type likewise, except do not append '*'
--format=WORD across -x, commas -m, horizontal -x, long -l,
single-column -1, verbose -l, vertical -C
--full-time like -l --time-style=full-iso
-g like -l, but do not list owner
--group-directories-first
group directories before files;
can be augmented with a --sort option, but any
use of --sort=none (-U) disables grouping
-G, --no-group in a long listing, don't print group names
-h, --human-readable with -l and -s, print sizes like 1K 234M 2G etc.
--si likewise, but use powers of 1000 not 1024
-H, --dereference-command-line
follow symbolic links listed on the command line
--dereference-command-line-symlink-to-dir
follow each command line symbolic link
that points to a directory
--hide=PATTERN do not list implied entries matching shell PATTERN
(overridden by -a or -A)
--hyperlink[=WHEN] hyperlink file names; WHEN can be 'always'
(default if omitted), 'auto', or 'never'
--indicator-style=WORD append indicator with style WORD to entry names:
none (default), slash (-p),
file-type (--file-type), classify (-F)
-i, --inode print the index number of each file
-I, --ignore=PATTERN do not list implied entries matching shell PATTERN
-k, --kibibytes default to 1024-byte blocks for disk usage;
used only with -s and per directory totals
-l use a long listing format
-L, --dereference when showing file information for a symbolic
link, show information for the file the link
references rather than for the link itself
-m fill width with a comma separated list of entries
-n, --numeric-uid-gid like -l, but list numeric user and group IDs
-N, --literal print entry names without quoting
-o like -l, but do not list group information
-p, --indicator-style=slash
append / indicator to directories
-q, --hide-control-chars print ? instead of nongraphic characters
--show-control-chars show nongraphic characters as-is (the default,
unless program is 'ls' and output is a terminal)
-Q, --quote-name enclose entry names in double quotes
--quoting-style=WORD use quoting style WORD for entry names:
literal, locale, shell, shell-always,
shell-escape, shell-escape-always, c, escape
(overrides QUOTING_STYLE environment variable)
-r, --reverse reverse order while sorting
-R, --recursive list subdirectories recursively
-s, --size print the allocated size of each file, in blocks
-S sort by file size, largest first
--sort=WORD sort by WORD instead of name: none (-U), size (-S),
time (-t), version (-v), extension (-X)
--time=WORD with -l, show time as WORD instead of default
modification time: atime or access or use (-u);
ctime or status (-c); also use specified time
as sort key if --sort=time (newest first)
--time-style=TIME_STYLE time/date format with -l; see TIME_STYLE below
-t sort by modification time, newest first
-T, --tabsize=COLS assume tab stops at each COLS instead of 8
-u with -lt: sort by, and show, access time;
with -l: show access time and sort by name;
otherwise: sort by access time, newest first
-U do not sort; list entries in directory order
-v natural sort of (version) numbers within text
-w, --width=COLS set output width to COLS. 0 means no limit
-x list entries by lines instead of by columns
-X sort alphabetically by entry extension
-Z, --context print any security context of each file
-1 list one file per line. Avoid '\n' with -q or -b
--help display this help and exit
--version output version information and exit
The SIZE argument is an integer and optional unit (example: 10K is 10*1024).
Units are K,M,G,T,P,E,Z,Y (powers of 1024) or KB,MB,... (powers of 1000).
The TIME_STYLE argument can be full-iso, long-iso, iso, locale, or +FORMAT.
FORMAT is interpreted like in date(1). If FORMAT is FORMAT1<newline>FORMAT2,
then FORMAT1 applies to non-recent files and FORMAT2 to recent files.
TIME_STYLE prefixed with 'posix-' takes effect only outside the POSIX locale.
Also the TIME_STYLE environment variable sets the default style to use.
Using color to distinguish file types is disabled both by default and
with --color=never. With --color=auto, ls emits color codes only when
standard output is connected to a terminal. The LS_COLORS environment
variable can change the settings. Use the dircolors command to set it.
Exit status:
0 if OK,
1 if minor problems (e.g., cannot access subdirectory),
2 if serious trouble (e.g., cannot access command-line argument).
GNU coreutils online help: <https://www.gnu.org/software/coreutils/>
Report ls translation bugs to <https://translationproject.org/team/>
Full documentation at: <https://www.gnu.org/software/coreutils/ls>
or available locally via: info '(coreutils) ls invocation'`
}
type Mkdir struct {
info.SimpleHandler
}
func (mkdir Mkdir) Handle(cmdInfo *info.Info) {
if _, files, ok := basicFileCommandParser(cmdInfo, mkdir.help()); ok {
for _, file := range files {
switch _, err := cmdInfo.FS.CreateDirectory(file); err {
case os.ErrExist:
cmdInfo.Writelnf("%s: cannot create directory '%s': File exists", cmdInfo.Command, file)
case os.ErrPermission:
cmdInfo.Writelnf("%s: cannot create directory '%s': Permission denied", cmdInfo.Command, file)
}
}
}
}
func (mkdir Mkdir) help() string {
return `
Usage: mkdir [OPTION]... DIRECTORY...
Create the DIRECTORY(ies), if they do not already exist.
Mandatory arguments to long options are mandatory for short options too.
-m, --mode=MODE set file mode (as in chmod), not a=rwx - umask
-p, --parents no error if existing, make parent directories as needed
-v, --verbose print a message for each created directory
-Z set SELinux security context of each created directory
to the default type
--context[=CTX] like -Z, or if CTX is specified then set the SELinux
or SMACK security context to CTX
--help display this help and exit
--version output version information and exit
GNU coreutils online help: <https://www.gnu.org/software/coreutils/>
Report mkdir translation bugs to <https://translationproject.org/team/>
Full documentation at: <https://www.gnu.org/software/coreutils/mkdir>
or available locally via: info '(coreutils) mkdir invocation'`
}
type RM struct {
info.SimpleHandler
}
func (rm RM) Handle(cmdInfo *info.Info) {
if options, files, ok := basicFileCommandParser(cmdInfo, rm.help()); ok {
var dir bool
for _, arg := range options {
switch arg {
case "-r", "-R", "--recursive":
dir = true
}
}
for _, fileName := range files {
if cmdInfo.FS.Manipulate {
if file, ok := cmdInfo.FS.GetFile(fileName, false); ok {
if file.IsDir() && !dir {
cmdInfo.Writelnf("rm: cannot remove '%s': Is a directory", fileName)
continue
}
file.Remove()
} else {
cmdInfo.Writelnf("rm: cannot remove '%s': No such file or directory", fileName)
}
} else {
cmdInfo.Writef("rm: remove write-protected file '%s'? ", fileName)
switch line, _ := cmdInfo.Read(); line {
case "y", "Y":
cmdInfo.Writelnf("rm: cannot remove '%s': Operation not permitted", fileName)
}
}
}
}
}
func (rm RM) help() string {
return `
Usage: rm [OPTION]... [FILE]...
Remove (unlink) the FILE(s).
-f, --force ignore nonexistent files and arguments, never prompt
-i prompt before every removal
-I prompt once before removing more than three files, or
when removing recursively; less intrusive than -i,
while still giving protection against most mistakes
--interactive[=WHEN] prompt according to WHEN: never, once (-I), or
always (-i); without WHEN, prompt always
--one-file-system when removing a hierarchy recursively, skip any
directory that is on a file system different from
that of the corresponding command line argument
--no-preserve-root do not treat '/' specially
--preserve-root[=all] do not remove '/' (default);
with 'all', reject any command line argument
on a separate device from its parent
-r, -R, --recursive remove directories and their contents recursively
-d, --dir remove empty directories
-v, --verbose explain what is being done
--help display this help and exit
--version output version information and exit
By default, rm does not remove directories. Use the --recursive (-r or -R)
option to remove each listed directory, too, along with all of its contents.
To remove a file whose name starts with a '-', for example '-foo',
use one of these commands:
rm -- -foo
rm ./-foo
Note that if you use rm to remove a file, it might be possible to recover
some of its contents, given sufficient expertise and/or time. For greater
assurance that the contents are truly unrecoverable, consider using shred.
GNU coreutils online help: <https://www.gnu.org/software/coreutils/>
Report rm translation bugs to <https://translationproject.org/team/>
Full documentation at: <https://www.gnu.org/software/coreutils/rm>
or available locally via: info '(coreutils) rm invocation'
`
}
type Touch struct {
info.SimpleHandler
}
func (touch Touch) Handle(cmdInfo *info.Info) {
if _, files, ok := basicFileCommandParser(cmdInfo, touch.help()); ok {
for _, file := range files {
if _, err := cmdInfo.FS.CreateFile(file); err == os.ErrPermission {
cmdInfo.Writelnf("%s: cannot touch '%s': Permission denied", cmdInfo.Command, file)
}
}
}
}
func (touch Touch) help() string {
return `Usage: touch [OPTION]... FILE...
Update the access and modification times of each FILE to the current time.
A FILE argument that does not exist is created empty, unless -c or -h
is supplied.
A FILE argument string of - is handled specially and causes touch to
change the times of the file associated with standard output.
Mandatory arguments to long options are mandatory for short options too.
-a change only the access time
-c, --no-create do not create any files
-d, --date=STRING parse STRING and use it instead of current time
-f (ignored)
-h, --no-dereference affect each symbolic link instead of any referenced
file (useful only on systems that can change the
timestamps of a symlink)
-m change only the modification time
-r, --reference=FILE use this file's times instead of current time
-t STAMP use [[CC]YY]MMDDhhmm[.ss] instead of current time
--time=WORD change the specified time:
WORD is access, atime, or use: equivalent to -a
WORD is modify or mtime: equivalent to -m
--help display this help and exit
--version output version information and exit
Note that the -d and -t options accept different time-date formats.
GNU coreutils online help: <https://www.gnu.org/software/coreutils/>
Report touch translation bugs to <https://translationproject.org/team/>
Full documentation at: <https://www.gnu.org/software/coreutils/touch>
or available locally via: info '(coreutils) touch invocation'`
}

View File

@ -0,0 +1,27 @@
package handler
import (
"fmt"
"github.com/bytedream/sshoneypot/sshoneypot/info"
)
func Default(info *info.Info) {
info.Writelnf("-bash: %s: command not found", info.Command)
}
func multipleArgs(info *info.Info) bool {
if len(info.Args) == 0 {
info.Writeln(missingOperand(info))
return false
} else {
return true
}
}
func missingOperand(info *info.Info) string {
return fmt.Sprintf("%s: missing operand", info.Command)
}
func noSuchFileOrDirectory(file string, info *info.Info) string {
return fmt.Sprintf("%s: %s: No such file or directory", info.Command, file)
}

382
sshoneypot/handler/net.go Normal file
View File

@ -0,0 +1,382 @@
package handler
import (
"fmt"
"github.com/bytedream/sshoneypot/sshoneypot/info"
"github.com/pborman/getopt"
"math/rand"
"mime"
"net"
"regexp"
"strconv"
"strings"
"time"
)
func randomIp() string {
return fmt.Sprintf("%d.%d.%d.%d", rand.Intn(254), rand.Intn(254), rand.Intn(254), rand.Intn(254))
}
func Ifconfig(cmdInfo *info.Info) {
for _, arg := range cmdInfo.Args {
if arg == "--help" {
cmdInfo.Writeln(`Usage:
ifconfig [-a] [-v] [-s] <interface> [[<AF>] <address>]
[add <address>[/<prefixlen>]]
[del <address>[/<prefixlen>]]
[[-]broadcast [<address>]] [[-]pointopoint [<address>]]
[netmask <address>] [dstaddr <address>] [tunnel <address>]
[outfill <NN>] [keepalive <NN>]
[hw <HW> <address>] [mtu <NN>]
[[-]trailers] [[-]arp] [[-]allmulti]
[multicast] [[-]promisc]
[mem_start <NN>] [io_addr <NN>] [irq <NN>] [media <type>]
[txqueuelen <NN>]
[[-]dynamic]
[up|down] ...
<HW>=Hardware Type.
List of possible hardware types:
loop (Local Loopback) slip (Serial Line IP) cslip (VJ Serial Line IP)
slip6 (6-bit Serial Line IP) cslip6 (VJ 6-bit Serial Line IP) adaptive (Adaptive Serial Line IP)
ash (Ash) ether (Ethernet) ax25 (AMPR AX.25)
netrom (AMPR NET/ROM) rose (AMPR ROSE) tunnel (IPIP Tunnel)
ppp (Point-to-Point Protocol) hdlc ((Cisco)-HDLC) lapb (LAPB)
arcnet (ARCnet) dlci (Frame Relay DLCI) frad (Frame Relay Access Device)
sit (IPv6-in-IPv4) fddi (Fiber Distributed Data Interface) hippi (HIPPI)
irda (IrLAP) ec (Econet) x25 (generic X.25)
eui64 (Generic EUI-64)
<AF>=Address family. Default: inet
List of possible address families:
unix (UNIX Domain) inet (DARPA Internet) inet6 (IPv6)
ax25 (AMPR AX.25) netrom (AMPR NET/ROM) rose (AMPR ROSE)
ipx (Novell IPX) ddp (Appletalk DDP) ec (Econet)
ash (Ash) x25 (CCITT X.25)`)
return
}
}
cmdInfo.Writeln(`eth0: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500
inet 172.17.0.2 netmask 255.255.0.0 broadcast 172.17.255.255
ether 02:42:ac:11:00:02 txqueuelen 0 (Ethernet)
RX packets 13 bytes 1182 (1.1 KiB)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 0 bytes 0 (0.0 B)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
lo: flags=73<UP,LOOPBACK,RUNNING> mtu 65536
inet 127.0.0.1 netmask 255.0.0.0
loop txqueuelen 1000 (Local Loopback)
RX packets 0 bytes 0 (0.0 B)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 0 bytes 0 (0.0 B)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0`)
}
type Ping struct {
info.SimpleHandler
}
func (ping Ping) Handle(cmdInfo *info.Info) {
opts := getopt.New()
count := opts.Int('c', 4, "count")
interval := opts.String('i', "1", "interval")
packetsize := opts.Int('s', 56, "packetsize")
opts.Getopt(cmdInfo.FullArgs, nil)
duration, err := strconv.ParseFloat(*interval, 64)
if err != nil {
cmdInfo.Writelnf("%s: bad timing interval", cmdInfo.Command)
return
}
address := opts.Arg(opts.NArgs() - 1)
ip := address
if net.ParseIP(address) == nil {
ip = randomIp()
}
cmdInfo.Writelnf("PING %s (%s) %d data bytes.", address, ip, *packetsize)
for i := 0; i < *count; i++ {
resultTime := rand.Float64() * 10
cmdInfo.Writelnf("%d bytes from %s (%s): icmp_seq=%d ttl=119 time=%.2f", *packetsize + 8, address, ip, i + 1, resultTime)
time.Sleep(time.Duration(duration) * time.Second)
}
}
func (ping Ping) help() string {
return `Usage: ping [-aAbBdDfhLnOqrRUvV64] [-c count] [-i interval] [-I interface]
[-m mark] [-M pmtudisc_option] [-l preload] [-p pattern] [-Q tos]
[-s packetsize] [-S sndbuf] [-t ttl] [-T timestamp_option]
[-w deadline] [-W timeout] [hop1 ...] destination
Usage: ping -6 [-aAbBdDfhLnOqrRUvV] [-c count] [-i interval] [-I interface]
[-l preload] [-m mark] [-M pmtudisc_option]
[-N nodeinfo_option] [-p pattern] [-Q tclass] [-s packetsize]
[-S sndbuf] [-t ttl] [-T timestamp_option] [-w deadline]
[-W timeout] destination`
}
type Wget struct {
info.SimpleHandler
}
func (wget Wget) Handle(cmdInfo *info.Info) {
if _, urls, ok := basicFileCommandParser(cmdInfo, wget.help()); ok {
regex := regexp.MustCompile("/((([A-Za-z]{3,9}:(?:\\/\\/)?)(?:[-;:&=\\+\\$,\\w]+@)?[A-Za-z0-9.-]+|(?:www.|[-;:&=\\+\\$,\\w]+@)[A-Za-z0-9.-]+)((?:\\/[\\+~%\\/.\\w-_]*)?\\??(?:[-\\+=&;%@.\\w_]*)#?(?:[\\w]*))?)/")
for _, url := range urls {
var port uint32
schemeUrl := url
if strings.HasPrefix(url, "http://") {
port = 80
} else if strings.HasPrefix(url, "https://") {
port = 433
} else {
schemeUrl = "http://" + url
port = 433
}
currentTime := time.Now().Format("2006-01-02 15:04:05")
if regex.MatchString(url) {
// generates a random ip
mimeType := mime.TypeByExtension(url)
if mimeType == "" {
mimeType = "text/html"
}
ip := randomIp()
cmdInfo.Writelnf(`--%s-- %s
Connecting to %s (%s)|%s|:%d... connected."
HTTP request sent, awaiting response... 200 OK
Length: unspecified [%s]
Saving to: '%s'`, currentTime, schemeUrl, url, url, ip, port, mimeType, url)
// TODO: download bar
// sleeps a random time to imitate the fetching process
time.Sleep(time.Duration(rand.Intn(5000)) * time.Millisecond)
if cmdInfo.Terminal.Width >= 60 {
loadingBar := 1
if cmdInfo.Terminal.Width > 60 {
loadingBar += int((cmdInfo.Terminal.Width - 60) / 2)
}
}
} else {
cmdInfo.Writelnf(`--%s-- %s
Resolving %s (%s)... failed: Name or service not known.
wget: unable to resolve host address '%s'`, currentTime, schemeUrl, url, url, url)
}
}
}
}
func (wget Wget) help() string {
return `GNU Wget 1.20.1, a non-interactive network retriever.
Usage: wget [OPTION]... [URL]...
Mandatory arguments to long options are mandatory for short options too.
Startup:
-V, --version display the version of Wget and exit
-h, --help print this help
-b, --background go to background after startup
-e, --execute=COMMAND execute a '.wgetrc'-style command
Logging and input file:
-o, --output-file=FILE log messages to FILE
-a, --append-output=FILE append messages to FILE
-d, --debug print lots of debugging information
-q, --quiet quiet (no output)
-v, --verbose be verbose (this is the default)
-nv, --no-verbose turn off verboseness, without being quiet
--report-speed=TYPE output bandwidth as TYPE. TYPE can be bits
-i, --input-file=FILE download URLs found in local or external FILE
-F, --force-html treat input file as HTML
-B, --base=URL resolves HTML input-file links (-i -F)
relative to URL
--config=FILE specify config file to use
--no-config do not read any config file
--rejected-log=FILE log reasons for URL rejection to FILE
Download:
-t, --tries=NUMBER set number of retries to NUMBER (0 unlimits)
--retry-connrefused retry even if connection is refused
--retry-on-http-error=ERRORS comma-separated list of HTTP errors to retry
-O, --output-document=FILE write documents to FILE
-nc, --no-clobber skip downloads that would download to
existing files (overwriting them)
--no-netrc don't try to obtain credentials from .netrc
-c, --continue resume getting a partially-downloaded file
--start-pos=OFFSET start downloading from zero-based position OFFSET
--progress=TYPE select progress gauge type
--show-progress display the progress bar in any verbosity mode
-N, --timestamping don't re-retrieve files unless newer than
local
--no-if-modified-since don't use conditional if-modified-since get
requests in timestamping mode
--no-use-server-timestamps don't set the local file's timestamp by
the one on the server
-S, --server-response print server response
--spider don't download anything
-T, --timeout=SECONDS set all timeout values to SECONDS
--dns-timeout=SECS set the DNS lookup timeout to SECS
--connect-timeout=SECS set the connect timeout to SECS
--read-timeout=SECS set the read timeout to SECS
-w, --wait=SECONDS wait SECONDS between retrievals
--waitretry=SECONDS wait 1..SECONDS between retries of a retrieval
--random-wait wait from 0.5*WAIT...1.5*WAIT secs between retrievals
--no-proxy explicitly turn off proxy
-Q, --quota=NUMBER set retrieval quota to NUMBER
--bind-address=ADDRESS bind to ADDRESS (hostname or IP) on local host
--limit-rate=RATE limit download rate to RATE
--no-dns-cache disable caching DNS lookups
--restrict-file-names=OS restrict chars in file names to ones OS allows
--ignore-case ignore case when matching files/directories
-4, --inet4-only connect only to IPv4 addresses
-6, --inet6-only connect only to IPv6 addresses
--prefer-family=FAMILY connect first to addresses of specified family,
one of IPv6, IPv4, or none
--user=USER set both ftp and http user to USER
--password=PASS set both ftp and http password to PASS
--ask-password prompt for passwords
--use-askpass=COMMAND specify credential handler for requesting
username and password. If no COMMAND is
specified the WGET_ASKPASS or the SSH_ASKPASS
environment variable is used.
--no-iri turn off IRI support
--local-encoding=ENC use ENC as the local encoding for IRIs
--remote-encoding=ENC use ENC as the default remote encoding
--unlink remove file before clobber
--xattr turn on storage of metadata in extended file attributes
Directories:
-nd, --no-directories don't create directories
-x, --force-directories force creation of directories
-nH, --no-host-directories don't create host directories
--protocol-directories use protocol name in directories
-P, --directory-prefix=PREFIX save files to PREFIX/..
--cut-dirs=NUMBER ignore NUMBER remote directory components
HTTP options:
--http-user=USER set http user to USER
--http-password=PASS set http password to PASS
--no-cache disallow server-cached data
--default-page=NAME change the default page name (normally
this is 'index.html'.)
-E, --adjust-extension save HTML/CSS documents with proper extensions
--ignore-length ignore 'Content-Length' header field
--header=STRING insert STRING among the headers
--compression=TYPE choose compression, one of auto, gzip and none. (default: none)
--max-redirect maximum redirections allowed per page
--proxy-user=USER set USER as proxy username
--proxy-password=PASS set PASS as proxy password
--referer=URL include 'Referer: URL' header in HTTP request
--save-headers save the HTTP headers to file
-U, --user-agent=AGENT identify as AGENT instead of Wget/VERSION
--no-http-keep-alive disable HTTP keep-alive (persistent connections)
--no-cookies don't use cookies
--load-cookies=FILE load cookies from FILE before session
--save-cookies=FILE save cookies to FILE after session
--keep-session-cookies load and save session (non-permanent) cookies
--post-data=STRING use the POST method; send STRING as the data
--post-file=FILE use the POST method; send contents of FILE
--method=HTTPMethod use method "HTTPMethod" in the request
--body-data=STRING send STRING as data. --method MUST be set
--body-file=FILE send contents of FILE. --method MUST be set
--content-disposition honor the Content-Disposition header when
choosing local file names (EXPERIMENTAL)
--content-on-error output the received content on server errors
--auth-no-challenge send Basic HTTP authentication information
without first waiting for the server's
challenge
HTTPS (SSL/TLS) options:
--secure-protocol=PR choose secure protocol, one of auto, SSLv2,
SSLv3, TLSv1, TLSv1_1, TLSv1_2 and PFS
--https-only only follow secure HTTPS links
--no-check-certificate don't validate the server's certificate
--certificate=FILE client certificate file
--certificate-type=TYPE client certificate type, PEM or DER
--private-key=FILE private key file
--private-key-type=TYPE private key type, PEM or DER
--ca-certificate=FILE file with the bundle of CAs
--ca-directory=DIR directory where hash list of CAs is stored
--crl-file=FILE file with bundle of CRLs
--pinnedpubkey=FILE/HASHES Public key (PEM/DER) file, or any number
of base64 encoded sha256 hashes preceded by
'sha256//' and separated by ';', to verify
peer against
--ciphers=STR Set the priority string (GnuTLS) or cipher list string (OpenSSL) directly.
Use with care. This option overrides --secure-protocol.
The format and syntax of this string depend on the specific SSL/TLS engine.
HSTS options:
--no-hsts disable HSTS
--hsts-file path of HSTS database (will override default)
FTP options:
--ftp-user=USER set ftp user to USER
--ftp-password=PASS set ftp password to PASS
--no-remove-listing don't remove '.listing' files
--no-glob turn off FTP file name globbing
--no-passive-ftp disable the "passive" transfer mode
--preserve-permissions preserve remote file permissions
--retr-symlinks when recursing, get linked-to files (not dir)
FTPS options:
--ftps-implicit use implicit FTPS (default port is 990)
--ftps-resume-ssl resume the SSL/TLS session started in the control connection when
opening a data connection
--ftps-clear-data-connection cipher the control channel only; all the data will be in plaintext
--ftps-fallback-to-ftp fall back to FTP if FTPS is not supported in the target server
WARC options:
--warc-file=FILENAME save request/response data to a .warc.gz file
--warc-header=STRING insert STRING into the warcinfo record
--warc-max-size=NUMBER set maximum size of WARC files to NUMBER
--warc-cdx write CDX index files
--warc-dedup=FILENAME do not store records listed in this CDX file
--no-warc-compression do not compress WARC files with GZIP
--no-warc-digests do not calculate SHA1 digests
--no-warc-keep-log do not store the log file in a WARC record
--warc-tempdir=DIRECTORY location for temporary files created by the
WARC writer
Recursive download:
-r, --recursive specify recursive download
-l, --level=NUMBER maximum recursion depth (inf or 0 for infinite)
--delete-after delete files locally after downloading them
-k, --convert-links make links in downloaded HTML or CSS point to
local files
--convert-file-only convert the file part of the URLs only (usually known as the basename)
--backups=N before writing file X, rotate up to N backup files
-K, --backup-converted before converting file X, back up as X.orig
-m, --mirror shortcut for -N -r -l inf --no-remove-listing
-p, --page-requisites get all images, etc. needed to display HTML page
--strict-comments turn on strict (SGML) handling of HTML comments
Recursive accept/reject:
-A, --accept=LIST comma-separated list of accepted extensions
-R, --reject=LIST comma-separated list of rejected extensions
--accept-regex=REGEX regex matching accepted URLs
--reject-regex=REGEX regex matching rejected URLs
--regex-type=TYPE regex type (posix|pcre)
-D, --domains=LIST comma-separated list of accepted domains
--exclude-domains=LIST comma-separated list of rejected domains
--follow-ftp follow FTP links from HTML documents
--follow-tags=LIST comma-separated list of followed HTML tags
--ignore-tags=LIST comma-separated list of ignored HTML tags
-H, --span-hosts go to foreign hosts when recursive
-L, --relative follow relative links only
-I, --include-directories=LIST list of allowed directories
--trust-server-names use the name specified by the redirection
URL's last component
-X, --exclude-directories=LIST list of excluded directories
-np, --no-parent don't ascend to the parent directory
Email bug reports, questions, discussions to <bug-wget@gnu.org>
and/or open issues at https://savannah.gnu.org/bugs/?func=additem&group=wget.`
}

12
sshoneypot/handler/out.go Normal file
View File

@ -0,0 +1,12 @@
package handler
import (
"github.com/bytedream/sshoneypot/sshoneypot/info"
"strings"
)
func Echo(cmdInfo *info.Info) {
if options, files, ok := basicFileCommandParser(cmdInfo, "--help"); ok {
cmdInfo.Writeln(strings.Join(append(options, files...), " "))
}
}

View File

@ -0,0 +1 @@
package handler

View File

@ -0,0 +1,7 @@
package handler
import "github.com/bytedream/sshoneypot/sshoneypot/info"
func Clear(info *info.Info) {
info.Write("\033[H\033[2J")
}

401
sshoneypot/info/fs.go Normal file
View File

@ -0,0 +1,401 @@
package info
import (
"encoding/json"
"os"
"path/filepath"
"strings"
"time"
)
// file structure extracted from a debian buster docker container including:
// - curl 7.64.0
// - net-tools
// - OpenSSH_7.9p1
// - python3.7.3
// - wget 1.20.1
// - and all dependencies of the installed packages
const (
TypeDirectory = 4
TypeCharacterDevice = 2
TypeBlockDevice = 6
TypeRegularFile = 10
TypeFifo = 1
TypeSymbolicLink = 12
TypeSocketFile = 14
)
type BasicFile interface {
// This returns the directory in which the file is located.
// Be careful to not mix it up with Directory.Files
Directory() (Directory, bool)
RawDirectory() map[string]interface{}
// If the file a dir
IsDir() bool
// Removes the file and all sub files if the file is a directory
Remove()
}
type Directory struct {
BasicFile
File
Files []File
}
func (dir Directory) Directory() (Directory, bool) {return dir.File.Directory()}
func (dir Directory) RawDirectory() map[string]interface{} {
return dir.dir
}
func (dir Directory) IsDir() bool {
return true
}
func (dir Directory) Remove() {
dir.File.Remove()
}
type File struct {
BasicFile
fs *FileSystem
dir map[string]interface{}
location string
Type uint8
Size int64
Links int
Permissions os.FileMode
Name string
CreationTimestamp int64
UserID uint16
GroupID uint16
}
func (f File) Directory() (Directory, bool) {
if dir, ok, _ := f.fs.getOrCreateFile(filepath.Dir(f.location), false, false, false); !ok {
return Directory{}, false
} else {
return dir.(Directory), true
}
}
func (f File) RawDirectory() map[string]interface{} {return f.dir}
func (f File) IsDir() bool {
return false
}
func (f File) Remove() {
parent, _ := filepath.Split(f.location)
dir, _ := f.fs.GetExplicitDirectory(parent, false)
delete(dir.dir["files"].(map[string]interface{}), strings.TrimSuffix(f.Name, string(os.PathSeparator)))
}
func (f File) Location() string {
return f.location
}
type FileSystem struct {
fs map[string]interface{}
info []interface{}
currentDir string
rawCurrentDir map[string]interface{}
Manipulate bool
root bool
fromFile string
}
func (fs *FileSystem) Close() error {
if fs.Manipulate && fs.fromFile != "" {
file, err := os.Open(fs.fromFile)
if err != nil {
return err
}
return json.NewEncoder(file).Encode(fs.fs)
}
return nil
}
func (fs *FileSystem) CreateDirectory(path string) (Directory, error) {
if fs.Manipulate {
dir, exist, created := fs.getOrCreateFile(path, false, true, false)
if exist {
return Directory{}, os.ErrExist
} else if !created {
return Directory{}, os.ErrPermission
} else {
return dir.(Directory), nil
}
} else {
return Directory{}, os.ErrPermission
}
}
func (fs *FileSystem) CreateFile(path string) (File, error) {
if fs.Manipulate {
file, exist, created := fs.getOrCreateFile(path, false, true, false)
if exist {
return File{}, os.ErrExist
} else if !created {
return File{}, os.ErrPermission
} else {
return file.(File), nil
}
} else {
return File{}, os.ErrPermission
}
}
func (fs *FileSystem) Cwd() Directory {
dir, _ := fs.GetFile("", false)
return dir.(Directory)
}
func (fs *FileSystem) Exists(path string) bool {
_, exists, _ := fs.getOrCreateFile(path, false, false, false)
return exists
}
func (fs *FileSystem) GetFile(path string, follow bool) (BasicFile, bool) {
file, ok, _ := fs.getOrCreateFile(path, follow, false, false)
return file, ok
}
func (fs *FileSystem) GetExplicitDirectory(path string, follow bool) (Directory, bool) {
if file, ok, _ := fs.getOrCreateFile(path, follow, false, false); ok {
f, ok := file.(Directory)
return f, ok
} else {
return Directory{}, false
}
}
func (fs *FileSystem) GetExplicitFile(path string) (File, bool) {
if file, ok, _ := fs.getOrCreateFile(path, false, false, false); ok {
f, ok := file.(File)
return f, ok
} else {
return File{}, false
}
}
func (fs *FileSystem) Walk(path string, walkFunc func(path string, f BasicFile)) bool {
if dir, ok := fs.GetExplicitDirectory(path, false); ok {
resultDir := dir.RawDirectory()["files"].(map[string]interface{})
for name, details := range resultDir {
switch details.(type) {
case []interface{}:
walkFunc(path, fs.generateFileInfo(resultDir, path, name, details.([]interface{})))
case map[string]interface{}:
resultDir = details.(map[string]interface{})["files"].(map[string]interface{})
resultInfo := details.(map[string]interface{})["info"].([]interface{})
walkFunc(path, Directory{
File: fs.generateFileInfo(resultDir, path, name, resultInfo),
Files: fs.directoryFiles(resultDir, path),
})
}
}
return true
} else {
return false
}
}
func (fs *FileSystem) generateFileInfo(resultDir map[string]interface{}, location string, name string, rawInfos []interface{}) File {
permissions := os.FileMode(uint32(rawInfos[3].(float64)))
if uint8(rawInfos[0].(float64)) == 4 {
permissions |= os.ModeDir
}
if permissions.IsDir() && !strings.HasSuffix(name, "/") {
name += "/"
}
if strings.Contains(name, " ") && !strings.HasPrefix(name, "'") && !strings.HasSuffix(name, "'") {
name = "'" + name + "'"
}
return File{
fs: fs,
dir: resultDir,
location: location,
Type: uint8(rawInfos[0].(float64)),
Size: int64(rawInfos[1].(float64)),
Links: int(rawInfos[2].(float64)),
Permissions: permissions,
Name: name,
CreationTimestamp: int64(rawInfos[4].(float64)),
UserID: uint16(rawInfos[5].(float64)),
GroupID: uint16(rawInfos[6].(float64)),
}
}
func (fs *FileSystem) getOrCreateFile(path string, follow bool, create bool, createDir bool) (file BasicFile, exists bool, created bool) {
var isFile bool
rawDirectory := fs.rawCurrentDir
resultDir := fs.rawCurrentDir["files"].(map[string]interface{})
var resultFile []interface{}
if !strings.HasPrefix(path, "/") {
path = filepath.Join(fs.currentDir, path)
}
location, name := filepath.Split(path)
splitPath := strings.Split(path, string(os.PathSeparator))[1:]
if path == "/" {
resultDir = fs.fs
resultFile = fs.info
location = ""
name = "/"
splitPath = make([]string, 0)
}
for i, s := range splitPath {
if s == "" {
splitPath = append(splitPath[:i], splitPath[i+1:]...)
}
}
for _, file := range splitPath {
if dir, ok := resultDir[file]; ok {
if preCurrentFile, ok := dir.(map[string]interface{}); ok {
rawDirectory = preCurrentFile
resultDir = preCurrentFile["files"].(map[string]interface{})
resultFile = preCurrentFile["info"].([]interface{})
} else if preCurrentFile, ok := dir.([]interface{}); ok {
isFile = true
resultFile = preCurrentFile
break
}
} else {
return nil, false, false
}
}
if resultFile == nil {
if create {
timestamp := time.Now().Unix()
file := File{
fs: fs,
dir: resultDir,
location: location,
Type: TypeRegularFile,
Size: 0,
// i dont really know why its 1, linux logic i think
Links: 1,
Permissions: os.ModeType,
Name: name,
CreationTimestamp: timestamp,
UserID: 1000,
GroupID: 1000,
}
if fs.root {
file.UserID = 0
file.GroupID = 0
}
if createDir {
file.Type = TypeDirectory
// i dont really know why its 2, linux logic i think
file.Links = 2
file.Permissions = os.ModeDir
resultDir[name] = map[string]interface{} {"files": make([]string, 0),
"info": []interface{} {file.Type, file.Size, file.Links, file.Permissions, file.CreationTimestamp, file.UserID, file.GroupID}}
return Directory{
BasicFile: file,
Files: make([]File, 0),
}, false, true
} else {
resultDir[name] = []interface{} {file.Type, file.Size, file.Links, file.Permissions, file.CreationTimestamp, file.UserID, file.GroupID}
}
if follow && strings.HasPrefix(path, "/") {
fs.currentDir = path
} else {
fs.currentDir = filepath.Join(fs.currentDir, path)
}
return file, false, true
} else {
return nil, false, false
}
}
file = fs.generateFileInfo(rawDirectory, location, name, resultFile)
if !isFile {
var files []File
for fname, info := range resultDir {
switch info.(type) {
// case normal file
case []interface{}:
info := info.([]interface{})
files = append(files, fs.generateFileInfo(rawDirectory, location, fname, info))
// case dir
case map[string]interface{}:
info := info.(map[string]interface{})["info"].([]interface{})
files = append(files, fs.generateFileInfo(rawDirectory, location, fname, info))
}
}
if follow {
fs.currentDir = path
}
return Directory{
File: file.(File),
Files: fs.directoryFiles(resultDir, location),
}, true, false
} else {
return file, true, false
}
}
func (fs *FileSystem) directoryFiles(rawDirectory map[string]interface{}, location string) []File {
var files []File
for fname, info := range rawDirectory {
switch info.(type) {
// case normal file
case []interface{}:
info := info.([]interface{})
files = append(files, fs.generateFileInfo(rawDirectory, location, fname, info))
// case dir
case map[string]interface{}:
info := info.(map[string]interface{})["info"].([]interface{})
files = append(files, fs.generateFileInfo(rawDirectory, location, fname, info))
}
}
return files
}
func LoadFSFromJson(fsFile string) (*FileSystem, error) {
file, err := os.Open(fsFile)
if err != nil {
return nil, err
}
fs := make(map[string]interface{})
if err := json.NewDecoder(file).Decode(&fs); err != nil {
return nil, err
}
return &FileSystem{
fs: fs["files"].(map[string]interface{}),
info: fs["info"].([]interface{}),
rawCurrentDir: fs,
currentDir: "/",
fromFile: fsFile,
}, nil
}

View File

@ -0,0 +1,28 @@
package info
type Handler interface {
//AutoCompleteOptions returns the extra arguments for a command (e.g. the `-a` or `-R` option in the `ls` command)
AutoCompleteOptions() []string
//AutoCompleteRequest gets called if the client request auto complete (e.g. if double pressing the `tab` key)
AutoCompleteRequest(info *Info) (accepted bool)
//Handle will execute / handle the command the client has entered
Handle(info *Info)
//Kill gets called if the user hard stops the command (ctrl + c)
Kill()
}
type SimpleHandler struct {
Handler
}
func (sh SimpleHandler) AutoCompleteOptions() []string {
return make([]string, 0)
}
func (sh SimpleHandler) AutoCompleteRequest(info *Info) (accepted bool) {
return false
}
func (sh SimpleHandler) Handle(info *Info) {}
func (sh SimpleHandler) Kill(){}

109
sshoneypot/info/info.go Normal file
View File

@ -0,0 +1,109 @@
package info
import (
"fmt"
"golang.org/x/crypto/ssh"
"golang.org/x/term"
"net"
)
type Termina struct {
*term.Terminal
// The current prompt string
Prompt string
Width, Height uint32
}
func (t *Termina) SetPrompt(prompt string) {
t.Prompt = prompt
t.Terminal.SetPrompt(prompt)
}
type Info struct {
Conn net.Conn
Terminal *Termina
FS *FileSystem
User *ssh.ServerConn
FullArgs []string
Command string
Args []string
Stdout bool
Stderr bool
}
func (info Info) Read() (content string, err error) {
if info.Terminal != nil {
oldPrompt := info.Terminal.Prompt
info.Terminal.SetPrompt("")
content, err = info.Terminal.ReadLine()
info.Terminal.SetPrompt(oldPrompt)
} else {
var buffer []byte
_, err = info.Conn.Read(buffer)
content = string(buffer)
}
return content, err
}
func (info Info) ReadPrompt() (content string, err error) {
if info.Terminal != nil {
content, err = info.Terminal.ReadLine()
} else {
var buffer []byte
_, err = info.Conn.Read(buffer)
content = string(buffer)
}
return content, err
}
func (info Info) Write(content string) (err error) {
if info.Stdout {
if info.Terminal != nil {
_, err = info.Terminal.Write([]byte(content))
} else {
_, err = info.Conn.Write([]byte(content))
}
}
return err
}
func (info Info) Writef(format string, args... interface{}) error {
return info.Write(fmt.Sprintf(format, args...))
}
func (info Info) Writeln(content string) (err error) {
return info.Write(content + "\n")
}
func (info Info) Writelnf(format string, args... interface{}) (err error) {
return info.Writeln(fmt.Sprintf(format, args...))
}
func (info Info) Error(content string) (err error) {
if info.Stderr {
if info.Terminal != nil {
_, err = info.Terminal.Write([]byte(content))
} else {
_, err = info.Conn.Write([]byte(content))
}
}
return err
}
func (info Info) Errorf(format string, args... interface{}) error {
return info.Error(fmt.Sprintf(format, args...))
}
func (info Info) Errorln(content string) (err error) {
return info.Error(content + "\n")
}
func (info Info) Errorlnf(format string, args... interface{}) (err error) {
return info.Errorln(fmt.Sprintf(format, args...))
}

179
sshoneypot/info/terminal.go Normal file
View File

@ -0,0 +1,179 @@
package info
import (
"errors"
"fmt"
"golang.org/x/crypto/ssh"
"strconv"
"sync"
)
type Terminal struct {
// the chan
channel ssh.Channel
// The current prompt string
prompt string
width, height int
isListening bool
buffer []byte
lock *sync.Mutex
}
const (
keyCtrlC = 3
keyCtrlD = 4
keyEnter = 13
keyEscape = 27
keyReturn = 127
keyUnknown = 0xd800 /* UTF-16 surrogate area */ + iota
keyUp
keyDown
keyLeft
keyRight
keyAltLeft
keyAltRight
keyHome
keyEnd
keyDeleteWord
keyDeleteLine
keyClearScreen
keyPasteStart
keyPasteEnd
)
var (
CtrlC = errors.New("CtrlC")
CtrlD = errors.New("CtrlD")
)
func (term *Terminal) GetSize() (width int, height int) {
return term.width, term.height
}
func (term *Terminal) SetSize(width int, height int) {
term.width = width
term.height = height
}
func (term *Terminal) GetPrompt() string {
return term.prompt
}
func (term *Terminal) SetPrompt(prompt string) {
term.prompt = prompt
}
func (term *Terminal) ReadLine() (string, error) {
var content []byte
for {
data, _ := term.listen()
for _, b := range data {
fmt.Println(b)
switch []rune(data) {
case keyCtrlD:
if len(content) == 0 {
return "", CtrlD
}
case keyEnter:
term.channel.Write([]byte("\r\n" + term.prompt))
return string(data), nil
case keyReturn:
if len(content) - 1 > len(term.prompt) {
content = content[:len(content) - 1]
term.MoveCursor(0, 0, 1, 0)
term.channel.Write(content)
}
case keyRight:
fmt.Println("aaa")
default:
content = append(content, b)
term.channel.Write(data)
}
}
}
}
func (term *Terminal) Write(data []byte) (n int, err error) {
return term.channel.Write(data)
}
func (term *Terminal) MoveCursor(up, down, left, right int) {
var m []rune
// 1 unit up can be expressed as ^[[A or ^[A
// 5 units up can be expressed as ^[[5A
if up == 1 {
m = append(m, keyEscape, '[', 'A')
} else if up > 1 {
m = append(m, keyEscape, '[')
m = append(m, []rune(strconv.Itoa(up))...)
m = append(m, 'A')
}
if down == 1 {
m = append(m, keyEscape, '[', 'B')
} else if down > 1 {
m = append(m, keyEscape, '[')
m = append(m, []rune(strconv.Itoa(down))...)
m = append(m, 'B')
}
if right == 1 {
m = append(m, keyEscape, '[', 'C')
} else if right > 1 {
m = append(m, keyEscape, '[')
m = append(m, []rune(strconv.Itoa(right))...)
m = append(m, 'C')
}
if left == 1 {
m = append(m, keyEscape, '[', 'D')
} else if left > 1 {
m = append(m, keyEscape, '[')
m = append(m, []rune(strconv.Itoa(left))...)
m = append(m, 'D')
}
term.Write([]byte(string(m)))
}
func (term *Terminal) ListenCtrlC() chan bool {
ctrlc := make(chan bool, 1)
go func() {
if term.isListening {
return
}
for {
data, err := term.listen()
if err == CtrlC {
ctrlc <- false
return
}
if term.isListening {
ctrlc <- false
term.buffer = data
}
}
}()
return ctrlc
}
func (term *Terminal) listen() ([]byte, error) {
buffer := make([]byte, 512)
n, err := term.channel.Read(buffer)
return buffer[:n], err
}
func NewTerminal(channel ssh.Channel) *Terminal {
return &Terminal{
channel: channel,
lock: &sync.Mutex{},
}
}

41
sshoneypot/logging.go Normal file
View File

@ -0,0 +1,41 @@
package sshoneypot
import (
"fmt"
"log"
)
// A simple high changeable logging interface
type Logging struct {
enable bool
}
func (l *Logging) Info(content string) {
if l.enable {
log.Println(content)
}
}
func (l *Logging) Infof(format string, args... interface{}) {
log.Printf(fmt.Sprintf(format, args))
}
func (l *Logging) Warn(content string) {
if l.enable {
log.Println(content)
}
}
func (l *Logging) Warnf(format string, args... interface{}) {
log.Printf(fmt.Sprintf(format, args))
}
func (l *Logging) Error(content string) {
if l.enable {
log.Println(content)
}
}
func (l *Logging) Errorf(format string, args... interface{}) {
l.Error(fmt.Sprintf(format, args))
}

45
sshoneypot/rsa.go Normal file
View File

@ -0,0 +1,45 @@
package sshoneypot
import (
"crypto/rand"
"crypto/rsa"
"crypto/x509"
"encoding/pem"
"golang.org/x/crypto/ssh"
"io/ioutil"
)
// LoadSSHKey loads a ssh key out of bytes
func LoadSSHKey(keyBytes []byte) (ssh.Signer, error) {
// parse the read key bytes
key, err := ssh.ParsePrivateKey(keyBytes)
if err != nil {
return nil, err
}
return key, nil
}
// LoadSSHKeyFromFile loads a ssh key out of a file
func LoadSSHKeyFromFile(file string) (ssh.Signer, error) {
keyBytes, err := ioutil.ReadFile(file)
if err != nil {
return nil, err
}
return LoadSSHKey(keyBytes)
}
// GenerateSSHKey generates a new rsa ssh key
func GenerateSSHKey() ([]byte, error) {
// create a key
privateKey, err := rsa.GenerateKey(rand.Reader, 2048)
if err != nil {
return nil, err
}
privateKeyBlock := pem.Block{
Type: "RSA PRIVATE KEY",
Headers: nil,
Bytes: x509.MarshalPKCS1PrivateKey(privateKey),
}
return pem.EncodeToMemory(&privateKeyBlock), nil
}

362
sshoneypot/sshoneypot.go Normal file
View File

@ -0,0 +1,362 @@
package sshoneypot
import (
"errors"
"fmt"
"github.com/bytedream/sshoneypot/sshoneypot/handler"
"github.com/bytedream/sshoneypot/sshoneypot/info"
"golang.org/x/crypto/ssh"
"golang.org/x/crypto/ssh/terminal"
"io"
"net"
"os"
"path/filepath"
"runtime"
"sort"
"strings"
)
const keyTab = 9
type SSHoneypot struct {
AllowedUsers []string
AllowedPasswords []string
Panic bool
Logger *Logging
Handler map[string]info.Handler
FS *info.FileSystem
Port uint16
ServerConfig *ssh.ServerConfig
}
func (honeypot SSHoneypot) AddHandler(name string, handler info.Handler, aliases... string) error {
for _, name := range append([]string{name}, aliases...) {
if _, exist := honeypot.Handler[name]; exist {
return errors.New("The handler name '" + name + "' already exists")
}
honeypot.Handler[name] = handler
}
return nil
}
type HandlerFunc func(info *info.Info)
//simpleHandler is a easy implementation of Handler / SimpleHandler for the AddHandlerFunc method below
type simpleHandler struct {
info.Handler
HandlerName string
handleFunc HandlerFunc
}
func (sh simpleHandler) AutoCompleteOptions() []string {
return make([]string, 0)
}
func (sh simpleHandler) AutoCompleteRequest(info *info.Info) (accepted bool) {
return false
}
func (sh simpleHandler) Handle(info *info.Info) {
sh.handleFunc(info)
}
func (sh simpleHandler) Kill() {}
func (honeypot SSHoneypot) AddHandlerFunc(name string, handler HandlerFunc, aliases... string) error {
return honeypot.AddHandler(name, simpleHandler{handleFunc: handler}, aliases...)
}
// Serve starts the ssh server and serve it until the program ends
func (honeypot SSHoneypot) Serve() error {
// starts the ssh listener
listener, err := net.Listen("tcp", fmt.Sprintf(":%d", honeypot.Port))
if err != nil {
return err
}
defer listener.Close()
for {
conn, err := listener.Accept()
if err != nil {
honeypot.Logger.Warnf("Failed to accept new client %s: %s\n", conn.RemoteAddr(), err)
continue
}
go honeypot.handleConn(conn)
}
}
func (honeypot SSHoneypot) handleConn(conn net.Conn) {
defer conn.Close()
serverConn, channels, requests, err := ssh.NewServerConn(conn, honeypot.ServerConfig)
if err != nil {
honeypot.Logger.Warnf("Failed to create new connection with %s: %s\n", conn.RemoteAddr(), err)
return
}
term := &info.Termina{}
go handleRequest(requests, term)
for channel := range channels {
go honeypot.handleChannel(conn, channel, serverConn, term)
}
honeypot.Logger.Infof("%s closed the connection\n", conn.RemoteAddr())
}
func (honeypot SSHoneypot) handleChannel(conn net.Conn, newChannel ssh.NewChannel, serverConn *ssh.ServerConn, term *info.Termina) {
channel, request, err := newChannel.Accept()
if err != nil {
return
}
for {
info.NewTerminal(channel).ReadLine()
}
term.Terminal = terminal.NewTerminal(channel, "")
term.SetPrompt(fmt.Sprintf("%s:%s $ ", serverConn.User(), "/"))
term.AutoCompleteCallback = func(line string, pos int, key rune) (newLine string, newPos int, ok bool) {
if key == keyTab {
if command, err := parseCommand(line); len(command) > 0 && err == nil {
if cmd, exists := honeypot.Handler[command[0]]; exists {
cmdInfo := &info.Info{Conn: conn, Terminal: term, FS: honeypot.FS, User: serverConn, FullArgs: command, Command: command[0], Args: command[1:], Stdout: true, Stderr: true}
if cmd.AutoCompleteRequest != nil && !cmd.AutoCompleteRequest(cmdInfo){
if options := cmd.AutoCompleteOptions(); options != nil && len(options) == 0 {
newLine, newPos, ok = honeypot.fileAutoComplete(cmdInfo, line)
} else if len(options) == 1 {
newLine = line + options[0]
}
}
}
}
}
return
}
go handleRequest(request, term)
for {
line, err := term.ReadLine()
if err != nil {
if err == io.EOF {
if honeypot.OnClose(channel) {
return
}
}
} else {
fmt.Println(line)
/*if !honeypot.handleLine(line, conn, channel, serverConn, term) {
if honeypot.OnClose(channel) {
return
}
}*/
}
}
}
func (honeypot SSHoneypot) handleLine(line string, conn net.Conn, channel ssh.Channel, serverConn *ssh.ServerConn, term *info.Termina) string {
command, err := parseCommand(line)
if err == nil && len(command) > 0 {
clientInfo := &info.Info{Conn: conn, Terminal: term, FS: honeypot.FS, User: serverConn, FullArgs: command, Command: command[0], Args: command[1:], Stdout: true, Stderr: true}
var redirect bool
for i, arg := range clientInfo.Args {
if redirect {
redirect = false
clientInfo.Args = append(clientInfo.Args[:i], clientInfo.Args[i+1:]...)
}
switch arg {
case "2>", "&>":
clientInfo.Stderr = false
fallthrough
case ">", "1>", ">>":
clientInfo.Stdout = false
clientInfo.Args = append(clientInfo.Args[:i], clientInfo.Args[i+1:]...)
}
}
if redirect {
clientInfo.Errorln("-bash: syntax error near unexpected token 'newline'")
return ""
}
finished := make(chan bool, 1)
newLine := ""
go func() {
for {
var buffer = make([]byte, 512)
n, _ := channel.Read(buffer)
select {
case <- finished:
newLine = string(buffer[:n])
return
default:
if buffer[0] == 3 {
clientInfo.Stderr = false
clientInfo.Stdout = false
finished <- true
}
}
}
}()
if commandHandler, ok := honeypot.Handler[command[0]]; ok {
if honeypot.Panic {
commandHandler.Handle(clientInfo)
} else {
func() {
defer func() {
if r := recover(); r != nil {
buffer := make([]byte, 2048)
written := runtime.Stack(buffer, false)
honeypot.Logger.Warnf("Unexpected panic: %s\n%s", r, buffer[:written])
}
}()
commandHandler.Handle(clientInfo)
}()
}
// the following part is the implementation of ctrl + c / ctrl + d when a process is running.
// sadly the ssh library doesn't support ctrl + c / some other keys to handle their input directly,
// so a second empty terminal has to be opened.
// and because of this ugly implementation, the key up / down buttons to get the recent entered command are not working :/
return newLine
} else {
handler.Default(clientInfo)
}
}
return ""
}
func (honeypot SSHoneypot) fileAutoComplete(cmdInfo *info.Info, line string) (newLine string, newPos int, ok bool) {
var names []string
if len(cmdInfo.Args) > 0 {
var dir info.Directory
search := cmdInfo.Args[len(cmdInfo.Args) - 1]
if strings.HasPrefix(search, string(os.PathSeparator)) {
dir, _ = honeypot.FS.GetExplicitDirectory("/", false)
} else {
dir = honeypot.FS.Cwd()
}
for _, file := range dir.Files {
if strings.HasPrefix(file.Name, search) && file.Name != search {
names = append(names, file.Name)
}
}
if len(names) == 1 && strings.HasPrefix(search, string(os.PathSeparator)) {
names[0] = filepath.Join(string(os.PathSeparator), names[0])
} else if len(names) == 0 && strings.Contains(search, string(os.PathSeparator)) {
parent, _ := filepath.Split(search)
if dir, ok := honeypot.FS.GetExplicitDirectory(parent, false); ok {
for _, file := range dir.Files {
if strings.HasPrefix(filepath.Join(parent, file.Name), search) && file.Name != search {
names = append(names, file.Name)
}
}
}
if len(names) == 1 {
names[0] = filepath.Join(parent, names[0]) + string(os.PathSeparator)
}
}
} else {
dir := honeypot.FS.Cwd()
for _, file := range dir.Files {
names = append(names, file.Name)
}
}
if len(names) == 0 {
return
} else if len(names) == 1 {
ok = true
if len(cmdInfo.Args) == 0 {
newLine += names[0]
} else {
newLine = line[:strings.LastIndex(line, " ")] + " " + names[0]
}
newPos = len(newLine)
} else {
honeypot.OptionsAutoComplete(names, cmdInfo, line)
}
return
}
// OptionsAutoComplete will show all given options in the console.
// e.g. all files in the current directory when double pressing `tab` after the `ls` command
func (honeypot SSHoneypot) OptionsAutoComplete(options []string, info *info.Info, line string) {
sort.Strings(options)
var length int
for _, option := range options {
if l := len(option); length < l {
length = l
}
}
length++
var builder strings.Builder
var perline int
if info.Terminal.Width > 0 {
perline = int(info.Terminal.Width) / length
} else {
perline = 80 / length
}
builder.WriteString(info.Terminal.Prompt + line + "\n")
for i, option := range options {
if i % perline == 0 && i != 0 {
builder.WriteString("\n")
}
builder.WriteString(option + strings.Repeat(" ", length - len(option)))
}
builder.WriteString("\n")
info.Write(builder.String())
}
// --- The following methods were created to allow user to manipulate the ssh process as they wish --- //
// OnClose gets called when the client send an exit signal.
// If the return bool is true, the channel will be closed an the client disconnected
func (honeypot SSHoneypot) OnClose(channel ssh.Channel) (close bool) {
channel.SendRequest("exit-status", false, ssh.Marshal(struct {Status uint32}{Status: 0}))
channel.Close()
return true
}
// --- //
func DefaultSSHoneypot(fs *info.FileSystem, key ssh.Signer) SSHoneypot {
serverConfig := &ssh.ServerConfig{
PasswordCallback: func(conn ssh.ConnMetadata, password []byte) (*ssh.Permissions, error) {
return nil, nil
},
ServerVersion: "SSH-2.0-OpenSSH_8.5",
}
serverConfig.AddHostKey(key)
honeypot := SSHoneypot{
Logger: &Logging{enable: true},
Port: 2222,
ServerConfig: serverConfig,
Handler: map[string]info.Handler{},
FS: fs,
}
honeypot.AddHandler("cat", handler.Cat{}, "/bin/cat")
honeypot.AddHandler("cd", handler.CD{})
honeypot.AddHandler("ls", handler.LS{}, "/bin/ls")
honeypot.AddHandler("mkdir", handler.Mkdir{}, "/bin/mkdir")
honeypot.AddHandler("rm", handler.RM{}, "/bin/rm")
honeypot.AddHandlerFunc("clear", handler.Clear, "/bin/clear")
honeypot.AddHandlerFunc("echo", handler.Echo, "/bin/echo")
honeypot.AddHandlerFunc("ifconfig", handler.Ifconfig, "/sbin/ifconfig")
honeypot.AddHandler("ping", handler.Ping{}, "/bin/ping", "/bin/ping4", "/bin/ping6")
return honeypot
}