Cisco ASA Unicast Reverse Path Forwarding (uRPF) Bypass Vulnerability

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Design/Logic Flaw

The Unicast Reverse Path Forwarding uRPF implementation in Cisco Adaptive Security Appliance ASA Software 9.31.50, 9.32.100, 9.33, and 9.41 mishandles cases where an IP address belongs to an internal interface but is also in the ASA routing table, which allows remote attackers to bypass uRPF...

Cisco ASA uRPF Checksum Bypass Vulnerability

The Cisco Adaptive Security Appliance is an adaptive security appliance that provides modules for security and VPN services. The Cisco Adaptive Security Appliance uRPF has a security vulnerability. Due to failure to properly verify the uRPF of an external interface IP message, if the IP address...

PT-2015-1894 · Cisco · Cisco Asa

Name of the Vulnerable Software and Affected Versions: Cisco Adaptive Security Appliance ASA Software versions 9.31.50 through 9.33 Cisco Adaptive Security Appliance ASA Software version 9.41 Description: The Unicast Reverse Path Forwarding uRPF implementation in Cisco Adaptive Security Appliance...