benigncertain

Here's how the NSA spied on Cisco firewalls for years

by 

Jon Fingas

08.21.2016

Edward Snowden leaks revealed that the NSA had the ability to spy on Cisco firewall traffic for years, but just how did the agency do it? We now have a clearer idea. An analysis of data from the Equation Group hack shows that the NSA used a specialized tool, BenignCertain, that uses an exploit in Cisco's Internet Key Exchange implementation to extract encryption keys and read otherwise secure virtual private network data. Cisco has confirmed that the attack can compromise multiple versions of its old PIX firewalls, which were last supported in 2009.