Cisco ASA SIP CPU Utilization DoS

high Nessus Plugin ID 61514

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Synopsis

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

Description

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.

Solution

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

Plugin Details

Severity: High

ID: 61514

File Name: cisco_asa_sip_cpu_dos.nasl

Version: 1.5

Type: local

Family: CISCO

Published: 8/13/2012

Updated: 12/4/2019

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

CVSS Score Source: CVE-2012-2472

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 Ease: No known exploits are available

Patch Publication Date: 7/24/2012

Vulnerability Publication Date: 7/24/2012

Reference Information

CVE: CVE-2012-2472

BID: 54836

CISCO-BUG-ID: CSCtz63143

Detections

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