DokuWiki Spellchecking Backend Lets Remote Users Code Execution
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SecurityTracker Alert ID: 1016221
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SecurityTracker URL: http://securitytracker.com/id?1016221
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CVE Reference: CVE-2006-2878
(Links to External Site)
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OSVDB Reference: 25980
(Links to External Site)
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Updated: May 22 2009
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Original Entry Date: Jun 5 2006
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Impact: Execution of arbitrary code via network, User access via network
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Fix Available: Yes
Vendor Confirmed: Yes
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Version(s): prior to 2006-03-09
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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
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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.
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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
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Vendor URL: www.splitbrain.org/projects/dokuwiki (Links to External Site)
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Cause: Input validation error, State error
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Underlying OS: Linux (Any), UNIX (Any)
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Message History:
None.
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Source Message Contents
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[Original Message Not Available for Viewing]
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