Cisco IOS Software Session Initiation Protocol Denial of Service Vulnerability (cisco-sa-20090923-sip)

high Nessus Plugin ID 49046

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Synopsis

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

Description

A vulnerability exists in the Session Initiation Protocol (SIP) implementation in Cisco IOS Software that could allow an unauthenticated attacker to cause a denial of service (DoS) condition on an affected device when the Cisco Unified Border Element feature is enabled.
Cisco has released free software updates that address this vulnerability. For devices that must run SIP there are no workarounds;
however, mitigations are available to limit exposure of the vulnerability.

Solution

Apply the relevant patch referenced in Cisco Security Advisory cisco-sa-20090923-sip.

Plugin Details

Severity: High

ID: 49046

File Name: cisco-sa-20090923-siphttp.nasl

Version: 1.21

Type: local

Family: CISCO

Published: 9/1/2010

Updated: 11/15/2018

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: Low

Score: 3.6

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: 9/23/2009

Vulnerability Publication Date: 9/23/2009

Reference Information

CVE: CVE-2009-2870

BID: 36499

CISCO-SA: cisco-sa-20090923-sip

CISCO-BUG-ID: CSCsx25880

Detections

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