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

1. Gentoo Linux Security Advisory

Advisory Reference	GLSA 200508-13 / pear-xml_rpc phpxmlrpc
Release Date	August 24, 2005
Latest Revision	August 24, 2005: 01
Impact	high
Exploitable	remote

Package	Vulnerable versions	Unaffected versions	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

Related bugreports: #102378, #102576

Synopsis

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

2. Impact Information

Background

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

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.

3. Resolution Information

Workaround

There are no known workarounds at this time.

Resolution

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

Code Listing 3.1: Resolution

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

All phpxmlrpc users should upgrade to the latest available version:

Code Listing 3.2: Resolution

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

4. References

Updated August 24, 2005

Summary: This is a Gentoo Linux Security Advisory

Security Team
Contact Address

Donate to support our development efforts.