Asterisk PJSIP Channel Driver Options DoS (AST-2014-003)

medium Nessus Plugin ID 73021

Synopsis

A telephony application running on the remote host is affected 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.

A flaw exists in the PJSIP channel driver when the 'quality_frequency' configuration is enabled on an AOR when the SIP server's challenges for authentication challenges of the 'OPTIONS' request. A remote attacker could use a specially crafted request to crash the program.

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

Solution

Upgrade to Asterisk 12.1.1 or apply the appropriate patch listed in the Asterisk advisory.

See Also

http://www.nessus.org/u?9933e282

http://downloads.asterisk.org/pub/security/AST-2014-003.html

https://issues.asterisk.org/jira/browse/ASTERISK-23210

Plugin Details

Severity: Medium

ID: 73021

File Name: asterisk_ast_2014_003.nasl

Version: 1.14

Type: remote

Family: Misc.

Published: 3/14/2014

Updated: 4/11/2022

Configuration: Enable paranoid mode, Enable thorough checks

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: Low

Score: 3.6

CVSS v2

Risk Factor: Medium

Base Score: 4.3

Temporal Score: 3.2

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

Vulnerability Information

CPE: cpe:/a:digium:asterisk

Required KB Items: Settings/ParanoidReport, asterisk/sip_detected

Exploit Ease: No known exploits are available

Patch Publication Date: 3/10/2014

Vulnerability Publication Date: 3/10/2014

Reference Information

CVE: CVE-2014-2288

BID: 66104