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medium5.0

CVE-2011-2581

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 sw…

Impact

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.

Affected products

VendorProductAffected versions
CiscoNx-Os
Versions 5.0\(2\), 5.0\(3\)n1\(1\), 5.0\(3\)n1\(1a\), 5.0\(3\)n1\(1b\), 5.0\(3\), 5.0\(3\)n1\(1c\)
CiscoNexus 5000
All versions
CiscoNexus 3000
All versions

Weakness classification

References