CVE-2015-4321
Cisco ASA 9.3/9.4 Unicast Reverse Path Forwarding Bypass via Spoofed Packets
Title source: llmDescription
The Unicast Reverse Path Forwarding (uRPF) implementation in Cisco Adaptive Security Appliance (ASA) Software 9.3(1.50), 9.3(2.100), 9.3(3), and 9.4(1) 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 validation via spoofed packets, aka Bug ID CSCuv60724.
References (2)
Core 2
Core References
Third Party Advisory, VDB Entry vdb-entry
x_refsource_sectrack
http://www.securitytracker.com/id/1033265
Vendor Advisory vendor-advisory
x_refsource_cisco
http://tools.cisco.com/security/center/viewAlert.x?alertId=40440
Scores
EPSS
0.0173
EPSS Percentile
74.9%
Details
CWE
CWE-20
Status
published
Products (4)
cisco/adaptive_security_appliance_software
9.3\(1.50\)
cisco/adaptive_security_appliance_software
9.3\(2.100\)
cisco/adaptive_security_appliance_software
9.3\(3\)
cisco/adaptive_security_appliance_software
9.4\(1\)
Published
Aug 20, 2015
Tracked Since
Feb 18, 2026