Rapid7 Vulnerability & Exploit Database

F5 BIG-IP Backend Cookie Disclosure

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F5 BIG-IP Backend Cookie Disclosure



This module identifies F5 BIG-IP load balancers and leaks backend information (pool name, routed domain, and backend servers' IP addresses and ports) through cookies inserted by the BIG-IP systems.


  • Thanat0s <thanspam@trollprod.org>
  • Oleg Broslavsky <ovbroslavsky@gmail.com>
  • Nikita Oleksov <neoleksov@gmail.com>
  • Denis Kolegov <dnkolegov@gmail.com>
  • Paul-Emmanuel Raoul <skyper@skyplabs.net>


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/gather/f5_bigip_cookie_disclosure
msf auxiliary(f5_bigip_cookie_disclosure) > show actions
msf auxiliary(f5_bigip_cookie_disclosure) > set ACTION < action-name >
msf auxiliary(f5_bigip_cookie_disclosure) > show options
    ...show and set options...
msf auxiliary(f5_bigip_cookie_disclosure) > run 

Time is precious, so I don’t want to do something manually that I can automate. Leveraging the Metasploit Framework when automating any task keeps us from having to re-create the wheel as we can use the existing libraries and focus our efforts where it matters.

– Jim O’Gorman | President, Offensive Security