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Cisco IOS HTTP Unauthorized Administrative Access

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).

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Module Name



  • aushack <patrick [at]>
  • hdm <x [at]>




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 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 and set options... msf auxiliary(cisco_ios_auth_bypass) > run

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