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

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


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.

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

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.

Risk factor :

Medium / CVSS Base Score : 6.0
(CVSS2#AV:N/AC:M/Au:S/C:P/I:P/A:P)
CVSS Temporal Score : 5.2
(CVSS2#E:ND/RL:OF/RC:C)
Public Exploit Available : false

Family: Misc.

Nessus Plugin ID: 79438 ()

Bugtraq ID: 71218
71227

CVE ID: CVE-2014-8412
CVE-2014-8418

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