VPN products by Cisco, Palo Alto Networks, F5 Networks, Pulse Secure, insecurely store session cookies.
At least four major VPN vendors could be enabling attackers to do the very thing VPNs are made to protect against.
The Cybersecurity and Infrastructure Security Agency issued a warning today after US-CERT reported that multiple VPN vendors store authentication and/or session cookies insecurely in memory and/or log files.
“If an attacker has persistent access to a VPN user’s endpoint or exfiltrates the cookie using other methods, they can replay the session and bypass other authentication methods,” the US-CERT advisory states. “An attacker would then have access to the same applications that the user does through their VPN session.”
US-CERT confirmed that Cisco, Palo Alto Networks, F5 Networks and Pulse Secure products are affected by this vulnerability. However, the issue is repaired in the latest versions of Palo Alto’s products and partly fixed in F5’s.
Checkpoint and pfSense are unaffected. Status is unknown for over 200 other vendors.
For more information, see here.
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Author: Dark Reading Staff