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?
--
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> -----Original Message-----
> From: Thomas Henlich [mailto:thomas@xxxxxxxxxx]
> Sent: Tuesday, 30 September 2008 6:30 PM
> To: bugtraq@xxxxxxxxxxxxxxxxx
> Subject: MySQL command-line client HTML injection vulnerability
>
> MYSQL COMMAND-LINE CLIENT HTML INJECTION VULNERABILITY
>
> Thomas Henlich <thomas@xxxxxxxxxx>
>
> 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(...,'&','&'),'<','<') 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.