Vulnerability Monitor

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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 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.

Published

2011-09-14T16:05:23.603

Last Modified

2025-04-11T00:51:21.963

Status

Deferred

Source

[email protected]

Severity

CVSSv2: 5.0 (MEDIUM)

CVSSv2 Vector

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

  • Access Vector: NETWORK
  • Access Complexity: LOW
  • Authentication: NONE
  • Confidentiality Impact: PARTIAL
  • Integrity Impact: NONE
  • Availability Impact: NONE
Exploitability Score

10.0

Impact Score

2.9

Weaknesses
  • Type: Primary
    CWE-264
Affected Vendors & Products
Type Vendor Product Version/Range Vulnerable?
Application cisco nx-os 5.0\(2\) Yes
Application cisco nx-os 5.0\(3\)n1\(1\) Yes
Application cisco nx-os 5.0\(3\)n1\(1a\) Yes
Application cisco nx-os 5.0\(3\)n1\(1b\) Yes
Operating System cisco nx-os 5.0\(3\) Yes
Operating System cisco nx-os 5.0\(3\)n1\(1c\) Yes
Hardware cisco nexus_5000 * Yes
Operating System cisco nx-os ≤ 5.0\(3\)u1\(2\) Yes
Operating System cisco nx-os 5.0\(3\)u1\(1a\) Yes
Operating System cisco nx-os 5.0\(3\)u1\(1b\) Yes
Operating System cisco nx-os 5.0\(3\)u1\(1d\) Yes
Hardware cisco nexus_3000 * Yes
References