Asterisk ConfBridge State Transitions DoS (AST-2014-014)

medium Nessus Plugin ID 79440

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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 denial of service vulnerability. This flaw exists due to improper handling of state transitions which could allow a remote attacker to crash the application.

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 11.14.1 / 11.6-cert8 or apply the appropriate patch listed in the Asterisk advisory.

Plugin Details

Severity: Medium

ID: 79440

File Name: asterisk_ast_2014_014.nasl

Version: 1.9

Type: remote

Family: Misc.

Published: 11/25/2014

Updated: 4/11/2022

Configuration: Enable paranoid mode, Enable thorough checks

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: Low

Score: 3.4

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

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: 11/20/2014

Vulnerability Publication Date: 11/20/2014

Reference Information

CVE: CVE-2014-8414

BID: 71222

Detections

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