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ibProArcade Cross Site Scripting Vulnerability/Exploit · **Released**: 05-29-2007

Your version of the arcade module for vBulletin has a Cross Site Scripting (XSS) vulnerability. The "comment" field on the scoreboard, does not properly filter HTML code, and allows users to inject arbitrary (and potentially malicious) javascript and HTML code into the field.

Combined with the fact that the scoring system has little verification, people could post ridiculous scores that have javascript that redirects to phishing sites, cookie stealers, keyloggers, etc.

I would suggest you to release a patch ASAP (a very minor code change would be required).

A malicious user can really do a lot of damage with such a security flaw.

MrZeropage · #2 05-29-2007, 08:01 PM

by using actual release (v2.6.1+) there is no XSS-vulnerability.

I don't know which version you use, and anyway you should provide such information via PM first and not explain details about security-issues in the future

Scores are secured against cheating by using new v32 and v33 games which detect such attemts on changing scores ect...

Awakeni · #3 05-29-2007, 08:12 PM

Not true. A user just did a XSS injection on my arcade and we use the latest version. He put a youtube video in a comment field. And there's ways to prevent all games from being so easily tampered with. It would be great if you could come up with a patch asap.

www.nihilum.eu

DementedMindz · #4 05-29-2007, 08:35 PM

well if you know ways to prevent them from being tampered with why don't you post a fix?

Stifmeister2 · #5 05-29-2007, 09:49 PM

Yes please send Mer Zeropage a PM and explain how they can be prevented.

Awakeni · #6 05-29-2007, 11:21 PM

I'm a busy man. But I felt it was a must to at least post about it. Trust me, if I had the time I would look into it more. Here's hoping for a patch.

MrZeropage · #7 05-30-2007, 10:24 AM

checked the code and in v2.6.1+ the comment is sanitized, but will verify this again and talk to Awakeni

MrZeropage · #8 05-30-2007, 09:17 PM

the arcade itself is secure, comments are working fine

Arcade ModCP has a little problem with editing comments, this is fixed now for v2.6.2+
until release of this, make sure to provide access to your arcade's ModCP only to people you trust! (which you should do anyway)

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