CVE-2015-4321

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.

Category

5.0
CVSS
Severity: Medium
CVSS 2.0 •
EPSS 0.16%
Vendor Advisory cisco.com
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
http://www.securitytracker.com/id/1033265 vdb entry
http://tools.cisco.com/security/center/viewAlert.x?alertId=40440 vendor advisory

Frequently Asked Questions

What is the severity of CVE-2015-4321?
CVE-2015-4321 has been scored as a medium severity vulnerability.
How to fix CVE-2015-4321?
To fix CVE-2015-4321, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2015-4321 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2015-4321 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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