Cisco IOS Software Network Address Translation Vulnerability (cisco-sa-20120328-nat)

High Nessus Plugin ID 58569


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


The Cisco IOS Software Network Address Translation (NAT) feature contains a denial of service (DoS) vulnerability in the translation of Session Initiation Protocol (SIP) packets. The vulnerability is caused when packets in transit on the vulnerable device require translation on the SIP payload. Cisco has released free software updates that address this vulnerability. A workaround that mitigates the vulnerability is available.


Apply the relevant patch referenced in Cisco Security Advisory cisco-sa-20120328-nat.

See Also

Plugin Details

Severity: High

ID: 58569

File Name: cisco-sa-20120328-nat.nasl

Version: 1.13

Type: local

Family: CISCO

Published: 2012/04/02

Updated: 2018/11/15

Dependencies: 47864

Risk Information

Risk Factor: High

CVSS v2.0

Base Score: 7.8

Temporal Score: 5.8

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

Temporal Vector: CVSS2#E:U/RL:OF/RC:C

Vulnerability Information

CPE: cpe:/o:cisco:ios

Required KB Items: Host/Cisco/IOS/Version

Exploit Available: false

Exploit Ease: No known exploits are available

Patch Publication Date: 2012/03/27

Vulnerability Publication Date: 2012/03/28

Reference Information

CVE: CVE-2012-0383

BID: 52758


CISCO-SA: cisco-sa-20120328-nat