Asterisk Manager Interface MixMonitor Privilege Escalation (AST-2014-006)

This script is Copyright (C) 2014-2016 Tenable Network Security, Inc.


Synopsis :

A telephony application running on the remote host is affected by a
privilege escalation vulnerability.

Description :

According to the version in its SIP banner, the version of Asterisk
running on the remote host is potentially affected by a privilege
escalation vulnerability. A flaw exists in the Asterisk Manager
Interface (AMI) which allows manager users to execute arbitrary shell
commands subject to the privileges of the Asterisk process. This flaw
exists due to the lack of authorization of the MixMonitor manager
action.

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

See also :

http://downloads.asterisk.org/pub/security/AST-2014-006.html
http://www.nessus.org/u?d949b72e
https://issues.asterisk.org/jira/browse/ASTERISK-23609
http://www.nessus.org/u?7d60d352
http://www.nessus.org/u?dd99d03c
http://www.nessus.org/u?12bda26e

Solution :

Upgrade to Asterisk 11.10.1 / 12.3.1 / Certified Asterisk 11.6-cert3,
or apply the appropriate patch listed in the Asterisk advisory.

Risk factor :

High / CVSS Base Score : 8.5
(CVSS2#AV:N/AC:M/Au:S/C:C/I:C/A:C)
CVSS Temporal Score : 7.0
(CVSS2#E:F/RL:OF/RC:ND)
Public Exploit Available : true

Family: Misc.

Nessus Plugin ID: 76087 ()

Bugtraq ID: 68040

CVE ID: CVE-2014-4046

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