GLSA 200503-35: Smarty: Template vulnerability

http://security.gentoo.org/

Severity:	high
Title:	Smarty: Template vulnerability
Date:	03/30/2005
Bugs:	#86488
ID:	200503-35

Synopsis

Smarty's "Template security" feature can be bypassed, potentially allowing a remote attacker to execute arbitrary PHP code.

Background

Smarty is a template engine for PHP. The "template security" feature of Smarty is designed to help reduce the risk of a system compromise when you have untrusted parties editing templates.

Affected packages

Package	Vulnerable	Unaffected	Architecture(s)
dev-php/smarty	< 2.6.9	>= 2.6.9	All supported architectures

Description

A vulnerability has been discovered within the regex_replace modifier of the Smarty templates when allowing access to untrusted users. Furthermore, it was possible to call functions from {if} statements and {math} functions.

Impact

These issues may allow a remote attacker to bypass the "template security" feature of Smarty, and execute arbitrary PHP code.

Workaround

Do not grant template access to untrusted users.

Resolution

All Smarty users should upgrade to the latest version:

    # emerge --sync
    # emerge --ask --oneshot --verbose ">=dev-php/smarty-2.6.9"

References

Availability

This GLSA and any updates to it are available for viewing at the Gentoo Security Website: http://security.gentoo.org/glsa/glsa-200503-35.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.