Asterisk Remote Crash Vulnerability in IAX2 Channel Driver (AST-2012-007)

low Nessus Plugin ID 59503

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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 vulnerability that could allow a remote attacker to crash the server. This issue could be exploited when a call is put on hold and the entity placing the call on hold contains the configuration item 'mohinterpret' set to the value 'passthrough'. An additional requirement is that the call is placed on hold with no 'music-on-hold' class name selected.

Solution

Upgrade to Asterisk 1.8.12.1 / 10.4.1 / 1.8.11-cert-2 or apply the patches listed in the Asterisk advisory.

Plugin Details

Severity: Low

ID: 59503

File Name: asterisk_ast_2012_007.nasl

Version: 1.13

Type: remote

Family: Misc.

Published: 6/14/2012

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: Low

Base Score: 2.6

Temporal Score: 1.9

Vector: CVSS2#AV:N/AC:H/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: 5/29/2012

Vulnerability Publication Date: 5/29/2012

Reference Information

CVE: CVE-2012-2947

BID: 53722

Detections

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