[gentoo-announce] [ GLSA 200804-13 ] Asterisk: Multiple vulnerabilities

[news 28]

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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

=================

 

-------------------------------------------------------------------

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 ( -at -) gentoo.org 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