Cisco is scrambling to patch another vulnerability in many of its products that was exposed as part of the Shadow Brokers dump last month. The latest vulnerability affects many different products, including all of the Cisco PIX firewalls.
The latest weakness lies in the code that Cisco’s IOS operating system uses to process IKEv1 packets. IKE is used in the IPSec protocol to help set up security associations, and Cisco uses it in a number of its products. The company said in an advisory that many versions of its IOS operating system are affected, including IOS XE and XR.
“A vulnerability in IKEv1 packet processing code in Cisco IOS, Cisco IOS XE and Cisco IOS XR Software could allow an unauthenticated, remote attacker to retrieve memory contents, which could lead to the disclosure of confidential information,” the advisory says.