Cisco IOS Software Queue Wedge Denial of Service Vulnerability (cisco-sa-20130925-wedge)

high Nessus Plugin ID 70323

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Synopsis

The remote device is missing a vendor-supplied security patch.

Description

A vulnerability in the T1/E1 driver queue implementation of Cisco IOS Software could allow an unauthenticated, remote attacker to cause an interface wedge condition, which could lead to loss of connectivity, loss of routing protocol adjacency, and could result in a denial of service (DoS) scenario. The vulnerability is due to incorrect implementation of the T1/E1 driver queue. An attacker could exploit this vulnerability by sending bursty traffic through the affected interface driver. Repeated exploitation could cause a DoS condition.
Workarounds to mitigate this vulnerability are available. Cisco has released free software updates that address this vulnerability.

Solution

Apply the relevant patch referenced in Cisco Security Advisory cisco-sa-20130925-wedge.

Plugin Details

Severity: High

ID: 70323

File Name: cisco-sa-20130925-wedge.nasl

Version: 1.14

Type: combined

Family: CISCO

Published: 10/7/2013

Updated: 11/15/2018

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: Low

Score: 3.4

CVSS v2

Risk Factor: High

Base Score: 7.8

Temporal Score: 5.8

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

Vulnerability Information

CPE: cpe:/o:cisco:ios

Required KB Items: Host/Cisco/IOS/Version

Exploit Ease: No known exploits are available

Patch Publication Date: 9/24/2013

Vulnerability Publication Date: 9/25/2013

Reference Information

CVE: CVE-2013-5477

BID: 62645

CISCO-SA: cisco-sa-20130925-wedge

CISCO-BUG-ID: CSCub67465

Detections

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