TikiWiki: Arbitrary command execution

1. Gentoo Linux Security Advisory

Advisory Reference	GLSA 200710-21 / tikiwiki
Release Date	October 20, 2007
Latest Revision	October 20, 2007: 01
Impact	high
Exploitable	remote

Package	Vulnerable versions	Unaffected versions	Architecture(s)
www-apps/tikiwiki	< 1.9.8.1	>= 1.9.8.1	All supported architectures

Related bugreports: #195503

Synopsis

Tikiwiki contains a command injection vulnerability which may allow remote execution of arbitrary code.

2. Impact Information

Background

TikiWiki is an open source content management system written in PHP.

Description

ShAnKaR reported that input passed to the "f" array parameter in tiki-graph_formula.php is not properly verified before being used to execute PHP functions.

Impact

An attacker could execute arbitrary code with the rights of the user running the web server by passing a specially crafted parameter string to the tiki-graph_formula.php file.

3. Resolution Information

Workaround

There is no known workaround at this time.

Resolution

All TikiWiki users should upgrade to the latest version:

Code Listing 3.1: Resolution

# emerge --sync
# emerge --ask --oneshot --verbose ">=www-apps/tikiwiki-1.9.8.1"

4. References

CVE-2007-5423

Updated October 20, 2007

Summary: This is a Gentoo Linux Security Advisory

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