CVE-2011-2581

Description

The ACL implementation in Cisco NX-OS 5.0(2) and 5.0(3) before 5.0(3)N2(1) on Nexus 5000 series switches, and NX-OS before 5.0(3)U1(2a) on Nexus 3000 series switches, does not properly handle comments in conjunction with deny statements, which allows remote attackers to bypass intended access restrictions in opportunistic circumstances by sending packets, aka Bug IDs CSCto09813 and CSCtr61490.

Category

5.0
CVSS
Severity: Medium
CVSS 2.0 •
EPSS 0.21%
Vendor Advisory cisco.com
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
http://www.securitytracker.com/id?1026019 vdb entry
http://www.cisco.com/en/US/products/products_security_advisory09186a0080b9250c.shtml vendor advisory
http://secunia.com/advisories/45883 third party advisory

Frequently Asked Questions

What is the severity of CVE-2011-2581?
CVE-2011-2581 has been scored as a medium severity vulnerability.
How to fix CVE-2011-2581?
To fix CVE-2011-2581, 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-2011-2581 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2011-2581 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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