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

Medium Nessus Plugin ID 79438

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.

See Also

http://downloads.asterisk.org/pub/security/AST-2014-012.html

https://issues.asterisk.org/jira/browse/ASTERISK-24469

http://downloads.asterisk.org/pub/security/AST-2014-018.html

https://issues.asterisk.org/jira/browse/ASTERISK-24534

Plugin Details

Severity: Medium

ID: 79438

File Name: asterisk_ast_2014_012.nasl

Version: 1.8

Type: remote

Family: Misc.

Published: 2014/11/25

Updated: 2018/06/27

Dependencies: 63202

Configuration: Enable paranoid mode

Risk Information

Risk Factor: Medium

CVSS v2.0

Base Score: 6

Temporal Score: 4.4

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

Temporal Vector: CVSS2#E:U/RL:OF/RC:C

Vulnerability Information

CPE: cpe:/a:digium:asterisk

Required KB Items: asterisk/sip_detected, Settings/ParanoidReport

Exploit Available: false

Exploit Ease: No known exploits are available

Patch Publication Date: 2014/11/20

Vulnerability Publication Date: 2014/11/20

Reference Information

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

BID: 71218, 71227