Cisco NX-OS Permissions, Privileges, and Access Controls (CVE-2011-2581)

medium Tenable OT Security Plugin ID 502730

Synopsis

The remote OT asset is affected by a vulnerability.

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.

This plugin only works with Tenable.ot.
Please visit https://www.tenable.com/products/tenable-ot for more information.

Solution

Refer to the vendor advisory.

Plugin Details

Severity: Medium

ID: 502730

Version: 1.2

Type: remote

Family: Tenable.ot

Published: 12/4/2024

Updated: 12/5/2024

Supported Sensors: Tenable OT Security

Risk Information

VPR

Risk Factor: Low

Score: 2.7

CVSS v2

Risk Factor: Medium

Base Score: 5

Temporal Score: 3.7

Vector: CVSS2#AV:N/AC:L/Au:N/C:P/I:N/A:N

CVSS Score Source: CVE-2011-2581

Vulnerability Information

CPE: cpe:/o:cisco:nx-os:5.0%283%29n1%281c%29, cpe:/o:cisco:nx-os, cpe:/o:cisco:nx-os:5.0%283%29u1%281d%29, cpe:/o:cisco:nx-os:5.0%283%29u1%281a%29, cpe:/o:cisco:nx-os:5.0%283%29u1%281b%29, cpe:/o:cisco:nx-os:5.0%283%29

Required KB Items: Tenable.ot/Cisco

Exploit Ease: No known exploits are available

Patch Publication Date: 9/14/2011

Vulnerability Publication Date: 9/14/2011

Reference Information

CVE: CVE-2011-2581

CWE: 264

Detections

Analytics