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Re: DoS via tables corruption in WordPress
From: Harry Metcalfe <harry () dxw com>
Date: Mon, 10 Feb 2014 15:05:05 +0000

I have a similar frustration. We operate a lot of WordPress sites and our clients value us, in part, because of our good security posture.

As such your emails always catch my attention and I always read them promptly. But I often find a lack of detail that allows me to understand whether they're issues that need me to take action, or just stuff it's interesting to be aware of.

It would be useful if you could include steps to replicate the issues you find.

Harry


On 10/02/2014 13:35, Aris Adamantiadis wrote:
Hi,

In none of your papers you document (in english) how you manage to
produce a table corruption in mysql, let alone from the web layers. I
still think that's possible because I experienced it on my own wordpress
+ mysql (had to do a manual repair), be it from an accident or your own
exploit.

Don't you think that's a bug in mysql itself ? Being able to corrupt
tables using basic SQL statements like insert and select should not be
possible.

Thanks,

Aris

Le 10/02/14 14:02, MustLive a écrit :
Hello participants of Mailing List.

There is DoS vulnerability in WordPress, about which I wrote in 2009
(http://websecurity.com.ua/3152/, on English
http://perishablepress.com/important-security-fix-for-wordpress/comment-page-5/#comment-71666),
which allows to conduct DoS attack or reinstall of the engine (depending
on corrupted table). And in 2012 (http://websecurity.com.ua/5774/, on
English http://securityvulns.ru/docs27968.html) I wrote that developers
hadn't fixed it, even they said so, and they made new DoS vulnerability.

In April 2012 I wrote my article "Attack via tables corruption in MySQL"
(http://lists.webappsec.org/pipermail/websecurity_lists.webappsec.org/2012-May/008363.html)
and in July made English version of the article
(http://websecurity.com.ua/articles/attack-via-tables-corruption-in-mysql/).
Where I described vulnerabilities in WordPress and IPB which are based
on my conception of attack via tables corruption.

On Saturday I published a video with my WordPress DoS exploit
(http://www.youtube.com/watch?v=kwv5ni_qxXs), which shows this DoS
attack on one security site on WordPress. Vulnerable are all versions of
WordPress. This video is a proof of this vulnerability in WP and of the
attack described in the article.

Best wishes & regards,
MustLive
Administrator of Websecurity web site
http://websecurity.com.ua

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_______________________________________________
Full-Disclosure - We believe in it.
Charter: http://lists.grok.org.uk/full-disclosure-charter.html
Hosted and sponsored by Secunia - http://secunia.com/

_______________________________________________
Full-Disclosure - We believe in it.
Charter: http://lists.grok.org.uk/full-disclosure-charter.html
Hosted and sponsored by Secunia - http://secunia.com/


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