Asterisk Information Disclosure (AST-2014-011) (POODLE)

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

Synopsis :

A telephony application running on the remote host is affected by an
information disclosure vulnerability.

Description :

According to the version in its SIP banner, the version of Asterisk
running on the remote host is potentially affected by an error related
to the way SSL 3.0 handles padding bytes when decrypting messages
encrypted using block ciphers in cipher block chaining (CBC) mode. A
man-in-the-middle attacker can decrypt a selected byte of a cipher
text in as few as 256 tries if they are able to force a victim
application to repeatedly send the same data over newly created SSL
3.0 connections. This is also known as the 'POODLE' issue.

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 / 11.13.1 / 12.6.1 / 1.8.28-cert2 /
11.6-cert7 or apply the appropriate patch listed in the Asterisk

Risk factor :

Medium / CVSS Base Score : 4.3
CVSS Temporal Score : 3.1
Public Exploit Available : false

Family: Misc.

Nessus Plugin ID: 78623 ()

Bugtraq ID: 70574

CVE ID: CVE-2014-3566

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