Asterisk milliwatt_generate Function Internal Data Sample Packet Parsing Remote DoS (AST-2012-002)

medium Nessus Plugin ID 58432

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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. The vulnerability can be triggered by sending large audio packets (if the internal_timing option is off), or by negotiating a media format with a sampling rate greater than 32 kHz. Both attacks require that the dialplan use the Milliwatt application with the 'o' option.

Solution

Upgrade to Asterisk 1.4.44 / 1.6.2.23 / 1.8.10.1 / 10.2.1 or apply the patches listed in the Asterisk advisory.

Plugin Details

Severity: Medium

ID: 58432

File Name: asterisk_ast_2012_002.nasl

Version: 1.13

Type: remote

Family: Misc.

Published: 3/22/2012

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: 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: 1/15/2012

Vulnerability Publication Date: 3/15/2012

Reference Information

CVE: CVE-2012-1183

BID: 52523

Detections

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