24th Feb 2003 [SBWID-6015]
COMMAND
WWWBoard XSS
SYSTEMS AFFECTED
WWWBoard 2.0A2.1 and prior
PROBLEM
In "Grégory" Le Bras [[email protected]] of Security
Corporation, security advisory [SCSA-007] :
http://www.security-corp.org/index.php?ink=4-15-1
http://www.security-corp.org/advisories/SCSA-007-FR.txt
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
________________________________________________________________________
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 <>)
SOLUTION
None yet