Asterisk SIP Channel Driver ACK with SDP Denial of Service (AST-2013-004)

medium Nessus Network Monitor Plugin ID 8006

Synopsis

The remote VoIP server is affected by by a denial of service vulnerability

Description

According to the version in its SIP banner, the version of Asterisk running on the remote host is potentially affected by a denial of service vulnerability. The application does not properly handle 'ACK' messages with SDP after a channel has been closed.

Solution

Upgrade to Asterisk 1.8.23.1 / 11.5.1 / Certified Asterisk 1.8.15-cert3 / 11.2-cert2, or apply the appropriate patch listed in the Asterisk advisory.

Plugin Details

Severity: Medium

ID: 8006

Family: Generic

Published: 9/10/2013

Updated: 3/6/2019

Nessus ID: 69558

Risk Information

VPR

Risk Factor: Low

Score: 3.6

CVSS v2

Risk Factor: Medium

Base Score: 5

Temporal Score: 3.7

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

CVSS v3

Risk Factor: Medium

Base Score: 5.3

Temporal Score: 4.6

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

Vulnerability Information

CPE: cpe:/a:digium:asterisk

Patch Publication Date: 8/27/2013

Vulnerability Publication Date: 8/27/2013

Reference Information

CVE: CVE-2013-5641

BID: 62021

Detections

Analytics