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Multiple Enterprise VPN Apps Allow Attackers to Bypass Authentication


Enterprise VPN applications developed by Palo Alto Networks, Pulse Secure, Cisco, and F5 Networks are storing authentication and session cookies insecurely according to a DHS/CISA alert and a vulnerability note issued by CERT/CC, potentially allowing attackers to bypass authentication.

As detailed in theCommon Weakness Enumeration database in CWE-311, the fact that an app fails to "encrypt sensitive or critical information before storage or transmission" could allow would-be attackers to intercept traffic data, read it and inject malicious code/data to perform a Man-in-the-Middle (MitM) attack.

The alert issued today by the Department of Homeland Security'sCybersecurity and Infrastructure Security Agency (CISA) also states that a potential "attacker could exploit this vulnerability to take control of an affected system."

Also, the vulnerability note written byCarnegie Mellon University'sMadison Oliver says that"If an attacker has persistent access to a VPN user's endpoint...(continued)

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