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Category:   Application (Forum/Board/Portal)  >   DokuWiki Vendors:   splitbrain.org
DokuWiki Spellchecking Backend Lets Remote Users Code Execution
SecurityTracker Alert ID:  1016221
SecurityTracker URL:  http://securitytracker.com/id/1016221
CVE Reference:   CVE-2006-2878   (Links to External Site)
Updated:  May 22 2009
Original Entry Date:  Jun 5 2006
Impact:   Execution of arbitrary code via network, User access via network
Fix Available:  Yes  Vendor Confirmed:  Yes  
Version(s): prior to 2006-03-09
Description:   A vulnerability was reported in DokuWiki in the spellchecking backend. A remote user can include and execute arbitrary code on the target system.

The spellchecking service uses the preg_replace() '/e' modifier in an unsafe manner. A remote user can supply a specially crafted string to the spellcheck function to execute arbitrary PHP code on the target system.

The vendor was notified on June 4, 2006.

Stefan Esser of the Hardened-PHP Project discovered this vulnerability.

The original advisory is available at:

http://www.hardened-php.net/advisory_042006.119.html

Impact:   A remote user can execute arbitrary PHP code and operating system commands on the target system with the privileges of the target web service.
Solution:   The vendor has issued a fixed version (2006-03-09), available at:

http://www.splitbrain.org/projects/dokuwiki

Alternately, the vendor has issued an updated version of the affected file, available at:

http://dev.splitbrain.org/download/darcs/dokuwiki/lib/exe/spellcheck.php

Vendor URL:  www.splitbrain.org/projects/dokuwiki (Links to External Site)
Cause:   Input validation error, State error
Underlying OS:  Linux (Any), UNIX (Any)

Message History:   None.


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