bugtraq - RE: MySQL command-line client HTML injection vulnerability

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Message-ID: <69D384433B57A14D837F7EC9760895F72C7BBA@sbs.QuarkGroup.local>
Date: Wed, 1 Oct 2008 08:59:58 +1000
From: "Quark IT - Hilton Travis" <Hilton@...rkIT.com.au>
To: "Thomas Henlich" <thomas@...lich.de>, <bugtraq@...urityfocus.com>
Subject: RE: MySQL command-line client HTML injection vulnerability

Hi Thomas,

This bug was fixed in a MySQL release dated 01 May 2008.  It is now 01
Oct 2008 - 5 months after the bug was released.  So why exactly is this
news?  Did I miss something here?

--

http://blog.hiltontravis.com/

Regards,

Hilton Travis                       Phone: +61 (0)7 3105 9101
(Brisbane, Australia)               Phone: +61 (0)419 792 394
Manager, Quark IT                   http://www.quarkit.com.au
         Quark Group                http://www.quarkgroup.com.au

     Microsoft SBSC PAL (Australia) http://www.sbscpal.com/

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> -----Original Message-----
> From: Thomas Henlich [mailto:thomas@...lich.de]
> Sent: Tuesday, 30 September 2008 6:30 PM
> To: bugtraq@...urityfocus.com
> Subject: MySQL command-line client HTML injection vulnerability
> 
> MYSQL COMMAND-LINE CLIENT HTML INJECTION VULNERABILITY
> 
> Thomas Henlich <thomas@...lich.de>
> 
> DESCRIPTION
> 
> The mysql command-line client does not quote HTML special characters
> like < in its output. This allows an attacker who is able to write
data
> into a table to hide or modify records in the output, and to inject
> potentially dangerous code, e. g. Javascript to perform cross-site
> scripting or cross-site request forgery attacks.
> 
> HOW TO REPRODUCE
> 
> $ mysql --html --execute "select '<a>'" ...
> <TABLE BORDER=1><TR><TH><a></TH></TR><TR><TD><a></TD></TR></TABLE>
> 
> AFFECTED VERSIONS
> 
> All.
> 
> RESOLUTION
> 
> Users are advised to install the available patch from
> http://bugs.mysql.com/bug.php?id=27884.
> 
> WORKAROUND
> 
> If another resolution is not feasible, users are advised to modify
> their
>  SELECT statements to filter out the characters < and &:
> 
> SELECT REPLACE(REPLACE(...,'&','&amp;'),'<','&lt;') AS ...;
> 
> This workaround is incompatible with the described resolution and
> should
> be reversed after installation of the patch.
> 
> TIMELINE
> 
> 2007-04-17 Opened bug on mysql.com
> 2008-05-01 Patch available
> 
> RESOURCES
> 
> The bug is filed on http://bugs.mysql.com/bug.php?id=27884.
> 
> This advisory is available from
> http://www.henlich.de/it-security/mysql-command-line-client-html-
> injection-vulnerability.