GLSA 200508-13: PEAR XML-RPC, phpxmlrpc: New PHP script injection vulnerability

http://security.gentoo.org/

Severity:	high
Title:	PEAR XML-RPC, phpxmlrpc: New PHP script injection vulnerability
Date:	08/24/2005
Bugs:	#102378, #102576
ID:	200508-13

Synopsis

The PEAR XML-RPC and phpxmlrpc libraries allow remote attackers to execute arbitrary PHP script commands.

Background

The PEAR XML-RPC and phpxmlrpc libraries are both PHP implementations of the XML-RPC protocol.

Affected packages

Package	Vulnerable	Unaffected	Architecture(s)
dev-php/PEAR-XML_RPC	< 1.4.0	>= 1.4.0	All supported architectures
dev-php/phpxmlrpc	< 1.2-r1	>= 1.2-r1	All supported architectures

Description

Stefan Esser of the Hardened-PHP Project discovered that the PEAR XML-RPC and phpxmlrpc libraries were improperly handling XMLRPC requests and responses with malformed nested tags.

Impact

A remote attacker could exploit this vulnerability to inject arbitrary PHP script code into eval() statements by sending a specially crafted XML document to web applications making use of these libraries.

Workaround

There are no known workarounds at this time.

Resolution

All PEAR-XML_RPC users should upgrade to the latest available version:

    # emerge --sync
    # emerge --ask --oneshot --verbose ">=dev-php/PEAR-XML_RPC-1.4.0"

All phpxmlrpc users should upgrade to the latest available version:


    # emerge --sync
    # emerge --ask --oneshot --verbose ">=dev-php/phpxmlrpc-1.2-r1"

References

Availability

This GLSA and any updates to it are available for viewing at the Gentoo Security Website: http://security.gentoo.org/glsa/glsa-200508-13.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.