GLSA 200804-13: Asterisk: Multiple vulnerabilities

http://security.gentoo.org/

Severity:	normal
Title:	Asterisk: Multiple vulnerabilities
Date:	04/14/2008
Bugs:	#200792, #202733, #213883
ID:	200804-13

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	Architecture(s)
net-misc/asterisk	< 1.2.27	>= 1.2.27	All supported architectures

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

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@gentoo.org or alternatively, you may file a bug at https://bugs.gentoo.org.