TikiWiki: Arbitrary command execution

1. Gentoo Linux Security Advisory

Package	Vulnerable versions	Unaffected versions	Architecture(s)
www-apps/tikiwiki	< 1.8.4.1	>= 1.8.4.1	All supported architectures

Related bugreports: #75568

A bug in TikiWiki allows certain users to upload and execute malicious PHP scripts.

2. Impact Information

TikiWiki is a web-based groupware and content management system (CMS), using PHP, ADOdb and Smarty.

TikiWiki lacks a check on uploaded images in the Wiki edit page.

A malicious user could run arbitrary commands on the server by uploading and calling a PHP script.

3. Resolution Information

There is no known workaround at this time.

All TikiWiki users should upgrade to the latest version:

Code Listing 3.1: Resolution

# emerge --sync
# emerge --ask --oneshot --verbose ">=www-apps/tikiwiki-1.8.4.1"

Note: Users with the vhosts USE flag set should manually use webapp-config to finalize the update.

4. References

Page updated January 10, 2005

Summary: This is a Gentoo Linux Security Advisory

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