Cisco ASA SIP CPU Utilization DoS

High Nessus Plugin ID 61514


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


The remote Cisco ASA is missing a security patch and may be affected by a denial of service vulnerability. When SIP inspection is enabled and SIP traffic does not establish the secondary connection, duplicate pre-allocated secondary pinholes are created, which could cause CPU utilization to increase. A remote, unauthenticated attacker could exploit this to cause a denial of service.


Apply the relevant patch referenced in the bug details for CSCtz63143.

See Also

Plugin Details

Severity: High

ID: 61514

File Name: cisco_asa_sip_cpu_dos.nasl

Version: 1.5

Type: local

Family: CISCO

Published: 2012/08/13

Updated: 2019/12/04

Dependencies: 12634

Risk Information

Risk Factor: High

CVSS Score Source: CVE-2012-2472

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:/h:cisco:asa_5500, cpe:/h:cisco:5500_series_adaptive_security_appliance, cpe:/a:cisco:adaptive_security_appliance_software

Required KB Items: Host/Cisco/ASA, Host/Cisco/ASA/model

Exploit Available: false

Exploit Ease: No known exploits are available

Patch Publication Date: 2012/07/24

Vulnerability Publication Date: 2012/07/24

Reference Information

CVE: CVE-2012-2472

BID: 54836