Land Down Under Input Validation Hole in BBcodes Lets Remote Users Conduct Cross-Site Scripting Attacks
SecurityTracker Alert ID: 1010335|
SecurityTracker URL: http://securitytracker.com/id/1010335
(Links to External Site)
Date: May 29 2004
Disclosure of authentication information, Disclosure of user information, Execution of arbitrary code via network, Modification of user information, User access via network|
Fix Available: Yes Vendor Confirmed: Yes Exploit Included: Yes |
Version(s): LDU 700|
An input validation vulnerability was reported in Land Down Under (LDU) in the processing of BBcodes. A remote user can conduct cross-site scripting attacks.|
A demonstration tag is provided:
A remote user can access the target user's cookies (including authentication cookies), if any, associated with the site running the LDU software, access data recently submitted by the target user via web form to the site, or take actions on the site acting as the target user.|
The vendor has released a fixed version, available at:|
Vendor URL: ldu.neocrome.net/ (Links to External Site)
Input validation error|
|Underlying OS: Linux (Any), UNIX (Any), Windows (Any)|
Source Message Contents
Date: 29 May 2004 14:15:13 -0000|
Subject: LDU (land down under) xss vulnerability
LDU is a php/mysql website engine.
A cross site scripting vulnerability exist in the BBcodes of the LDU forum.
I will give the following proof of concept:
With this vuln, you are able to become any user who uses a browser that "supports" xss (like IE), so it is possible to become admin.
Further there also lies a browser independed problem, cause if you post this message:
everyone who reads the topic, will logout.
I e-mailed the LDU developers and the bug was fixed the same day i notified them.
Update to the newest version of LDU 700.
Update link: http://ldu.neocrome.net/page.php?id=1357
crypt0 of www.cyber-war.org (firstname.lastname@example.org)
Cel0x of www.cyber-war.org
Mighty of www.cyber-war.org
Hans Teeuwen (Dutch people will know who i mean :-D)