Cisco IOS Software Network Address Translation (NAT) ALG Module DoS (cisco-sa-20140924-nat)

high Nessus Plugin ID 77984

Synopsis

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

Description

According to its self-reported version, the version of Cisco IOS running on the remote host is affected by a denial of service vulnerability in the Network Address Translation (NAT) application-layer gateway (ALG) module. This issue exists due to improper handling of multipart Session Description Protocol (SDP) in Session Initiation Protocol (SIP) messages. A remote attacker can exploit this issue by sending specially crafted SIP messages.

Note that the affected configuration is not enabled by default.

Solution

Apply the relevant patch referenced in Cisco Security Advisory cisco-sa-20140924-nat.

See Also

http://www.nessus.org/u?b458c658

https://tools.cisco.com/security/center/viewAlert.x?alertId=35610

https://tools.cisco.com/bugsearch/bug/CSCun54071

Plugin Details

Severity: High

ID: 77984

File Name: cisco-sa-20140924-nat.nasl

Version: 1.12

Type: combined

Family: CISCO

Published: 9/30/2014

Updated: 11/15/2018

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: Low

Score: 3.6

CVSS v2

Risk Factor: High

Base Score: 7.1

Temporal Score: 5.3

Vector: CVSS2#AV:N/AC:M/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: 9/24/2014

Vulnerability Publication Date: 9/24/2014

Reference Information

CVE: CVE-2014-3361

BID: 70129

CISCO-SA: cisco-sa-20140924-nat

CISCO-BUG-ID: CSCun54071