Asterisk SIP Channel Driver Username Disclosure (AST-2013-003)

medium Nessus Plugin ID 65898

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Synopsis

A telephony application running on the remote host is affected by an information disclosure vulnerability.

Description

According to the version in its SIP banner, the version of Asterisk running on the remote host is potentially affected by a username disclosure vulnerability related to INVITE, SUBSCRIBE and REGISTER transactions and improper settings for the configuration options 'alwaysauthreject', 'allowguest' and 'autocreatepeer'.

Solution

Upgrade to Asterisk 1.8.20.2 / 10.12.2 / 11.2.2 / Certified Asterisk 1.8.15-cert2 / Asterisk Business Edition C.3.8.1, or apply the appropriate patch listed in the Asterisk advisory.

Plugin Details

Severity: Medium

ID: 65898

File Name: asterisk_ast_2013_003.nasl

Version: 1.11

Type: remote

Family: Misc.

Published: 4/10/2013

Updated: 4/11/2022

Configuration: Enable paranoid mode, Enable thorough checks

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: Low

Score: 2.7

CVSS v2

Risk Factor: Medium

Base Score: 5

Temporal Score: 3.7

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

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: 3/27/2013

Vulnerability Publication Date: 2/21/2013

Reference Information

CVE: CVE-2013-2264

BID: 58764

Detections

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