Asterisk Multiple Vulnerabilities (AST-2014-012 / AST-2014-018)

high Nessus Plugin ID 79438

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Synopsis

A telephony application running on the remote host is affected by multiple vulnerabilities.

Description

According to the version in its SIP banner, the version of Asterisk running on the remote host is potentially affected by the following vulnerabilities :

- A security bypass vulnerability exists in the VoIP channel drivers, DUNDi, and Asterisk Manager Interface (AMI) components which may allow a remote attacker to send specially crafted packets that bypass all ACL rules other than the first ACL entry. (CVE-2014-8412)

- A privilege escalation vulnerability exists in the ConfBridge 'dialplan' DB function when executed from an external protocol which could allow a remote, authenticated attacker to escalate privileges.
(CVE-2014-8418)

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

Solution

Upgrade to Asterisk 1.8.32.1 / 11.14.1 / 12.7.1 / 13.0.1 / 1.8.28-cert3 / 11.6-cert8 or apply the appropriate patch listed in the Asterisk advisories.

Plugin Details

Severity: High

ID: 79438

File Name: asterisk_ast_2014_012.nasl

Version: 1.10

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: Medium

Score: 5.9

CVSS v2

Risk Factor: High

Base Score: 9

Temporal Score: 6.7

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

CVSS Score Source: CVE-2014-8418

Vulnerability Information

CPE: cpe:/a:digium:asterisk

Required KB Items: asterisk/sip_detected, Settings/ParanoidReport

Exploit Ease: No known exploits are available

Patch Publication Date: 11/20/2014

Vulnerability Publication Date: 11/20/2014

Reference Information

CVE: CVE-2014-8412, CVE-2014-8418

BID: 71218, 71227

Detections

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