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Gentoo Linux Security Advisory GLSA 200804-13
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http://security.gentoo.org/
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Severity: Normal
Title: Asterisk: Multiple vulnerabilities
Date: April 14, 2008
Bugs: #200792, #202733, #213883
ID: 200804-13
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Synopsis
========
Multiple vulnerabilities have been found in Asterisk allowing for SQL
injection, session hijacking and unauthorized usage.
Background
==========
Asterisk is an open source telephony engine and tool kit.
Affected packages
=================
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Package / Vulnerable / Unaffected
-------------------------------------------------------------------
1 net-misc/asterisk < 1.2.27 >= 1.2.27
Description
===========
Asterisk upstream developers reported multiple vulnerabilities:
* The Call Detail Record Postgres logging engine (cdr_pgsql) does not
correctly escape the ANI and DNIS arguments before using them in SQL
statements (CVE-2007-6170).
* When using database-based registrations ("realtime") and host-based
authentication, Asterisk does not check the IP address when the
username is correct and there is no password provided
(CVE-2007-6430).
* The SIP channel driver does not correctly determine if
authentication is required (CVE-2008-1332).
Impact
======
Remote authenticated attackers could send specially crafted data to
Asterisk to execute arbitrary SQL commands and compromise the
administrative database. Remote unauthenticated attackers could bypass
authentication using a valid username to hijack other user's sessions,
and establish sessions on the SIP channel without authentication.
Workaround
==========
There is no known workaround at this time.
Resolution
==========
All Asterisk users should upgrade to the latest version:
# emerge --sync
# emerge --ask --oneshot --verbose ">=net-misc/asterisk-1.2.27"
References
==========
[ 1 ] CVE-2007-6170
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-6170
[ 2 ] CVE-2007-6430
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-6430
[ 3 ] CVE-2008-1332
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2008-1332
Availability
============
This GLSA and any updates to it are available for viewing at
the Gentoo Security Website:
http://security.gentoo.org/glsa/glsa-200804-13.xml
Concerns?
=========
Security is a primary focus of Gentoo Linux and ensuring the
confidentiality and security of our users machines is of utmost
importance to us. Any security concerns should be addressed to
security@xxxxxxxxxx or alternatively, you may file a bug at
http://bugs.gentoo.org.
License
=======
Copyright 2008 Gentoo Foundation, Inc; referenced text
belongs to its owner(s).
The contents of this document are licensed under the
Creative Commons - Attribution / Share Alike license.
http://creativecommons.org/licenses/by-sa/2.5
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