[SCSA-007] Cross Site Scripting Vulnerabilities in WWWBoard

["Grégory" Le Bras <gregory.lebras () security-corp org>]

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Security Corporation Security Advisory [SCSA-007]
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PROGRAM: WWWBoard
HOMEPAGE: http://www.scriptarchive.com
VULNERABLE VERSIONS: 2.0A2.1 and prior
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DESCRIPTION
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WWWBoard is "A threaded discussion forum that allows users to post 
new messages, followup to existing ones and more. Includes a basic 
admin to maintain the board."

(direct quote from WWWBoard website)


DETAILS
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A Cross-Site Scripting vulnerability have been found in WWWBoard
which allow attackers to inject script codes into the forum and use them 
on clients browser as if they were provided by the site.

This Cross-Site Scripting vulnerability are found in the page for 
posting messages.

An attacker can input specially crafted links and/or other 
malicious scripts.


EXPLOIT
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A vulnerability was discovered in the page for posting messages, 
at this adress : 

http://[target]/wwwboard/wwwboard.html#post


The vulnerability is at the level of the interpretation of the "Message" 
field. 

Indeed, the insertion of a hostile code script in this field makes it 
possible to a malicious user to carry out this script on the navigator 
of the visitors.


The hostile code could be :

[script]alert("Cookie="+document.cookie)[/script] 

(open a window with the cookie of the visitor.)

(replace [] by <>)


SOLUTIONS
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No solution for the moment.


VENDOR STATUS 
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The vendor has reportedly been notified.


LINKS
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http://www.security-corp.org/index.php?ink=4-15-1

Version Française : 

http://www.security-corp.org/advisories/SCSA-007-FR.txt


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Grégory Le Bras aka GaLiaRePt | http://www.Security-Corp.org
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