Asterisk main/http.c DoS (AST-2014-001)

high Nessus Plugin ID 73019

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Synopsis

A telephony application running on the remote host is affected by a stack overflow 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 stack overflow flaw exists when an HTTP request with a large number of cookie headers isn't properly validated. A remote attacker could potentially cause a denial of service if a request has an unlimited number of cookie headers in the request.

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 1.8.26.1 / 11.8.1 / 12.1.1 / Certified Asterisk 1.8.15-cert5 / 11.6-cert2, or apply the appropriate patch listed in the Asterisk advisory.

Plugin Details

Severity: High

ID: 73019

File Name: asterisk_ast_2014_001.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: Medium

Score: 5.9

CVSS v2

Risk Factor: High

Base Score: 7.5

Temporal Score: 5.5

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

CVSS Score Source: CVE-2014-2286

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: 2/21/2014

Reference Information

CVE: CVE-2014-2286

BID: 66093

Detections

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