Asterisk PJSIP Channel Driver Options DoS (AST-2014-003)

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

Synopsis :

A telephony application running on the remote host is affected by a
denial of service vulnerability.

Description :

According to the version in its SIP banner, the version of Asterisk
running on the remote host is potentially affected by a denial of
service vulnerability.

A flaw exists in the PJSIP channel driver when the 'quality_frequency'
configuration is enabled on an AOR when the SIP server's challenges for
authentication challenges of the 'OPTIONS' request. A remote attacker
could use a specially crafted request to crash the program.

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

See also :

Solution :

Upgrade to Asterisk 12.1.1 or apply the appropriate patch listed in
the Asterisk advisory.

Risk factor :

Medium / CVSS Base Score : 4.3
CVSS Temporal Score : 3.6
Public Exploit Available : true

Family: Misc.

Nessus Plugin ID: 73021 ()

Bugtraq ID: 66104

CVE ID: CVE-2014-2288

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