Description
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.
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_execmsf undefined(access_gateway_exec) > show actions ...actions...msf undefined(access_gateway_exec) > set ACTION < action-name >msf undefined(access_gateway_exec) > show options ...show and set options...msf undefined(access_gateway_exec) > runPrioritise with Active Threat Intelligence
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