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Citrix Access Gateway Command Execution

The Citrix Access Gateway provides support for multiple authentication types. When utilizing the external legacy NTLM authentication module known as ntlm_authenticator the Access Gateway spawns the Samba 'samedit' command line utility to verify a user's identity and password. By embedding shell metacharacters in the web authentication form it is possible to execute arbitrary commands on the Access Gateway.

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Module Name

exploit/unix/webapp/citrix_access_gateway_exec

Authors

  • George D. Gal
  • Erwin Paternotte

References

Targets

  • Automatic

Platforms

  • unix

Architectures

  • cmd

Reliability

Development

Module Options

To display the available options, load the module within the Metasploit console and run the commands 'show options' or 'show advanced':

msf > use exploit/unix/webapp/citrix_access_gateway_exec msf exploit(citrix_access_gateway_exec) > show targets ...targets... msf exploit(citrix_access_gateway_exec) > set TARGET <target-id> msf exploit(citrix_access_gateway_exec) > show options ...show and set options... msf exploit(citrix_access_gateway_exec) > exploit