CVE-2015-4321

Published: Aug 20, 2015Modified: May 6, 2026

5.0

Vector

AV:N/AC:L/Au:N/C:P/I:N/A:N

Exploitability: 10.0 / Impact: 2.9

Source: NVD

Description

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.

Affected (4)

Products: Cisco: Adaptive Security Appliance Software

Cisco

1 product

Adaptive Security Appliance Software

Configuration A

4 vulnerable

Vulnerable Software	Affected Versions
Cisco Adaptive Security Appliance Software	Version 9.3(1.50)
Cisco Adaptive Security Appliance Software	Version 9.3(2.100)
Cisco Adaptive Security Appliance Software	Version 9.3(3)
Cisco Adaptive Security Appliance Software	Version 9.4(1)

Related CWEs

CWE-20

Improper Input Validation

The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly.

References (4)

http://tools.cisco.com/security/center/viewAlert.x?alertId=40440

Source: psirt@cisco.com

Vendor Advisory

http://www.securitytracker.com/id/1033265

Source: psirt@cisco.com

http://tools.cisco.com/security/center/viewAlert.x?alertId=40440

Source: af854a3a-2127-422b-91ae-364da2661108

Vendor Advisory

http://www.securitytracker.com/id/1033265

Source: af854a3a-2127-422b-91ae-364da2661108

Timeline

No history available yet.