full-disclosure - Re: Drupal 7.x Search Module

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Date: Wed, 14 Mar 2012 15:46:12 +0100
From: Ferenc Kovacs <tyra3l@...il.com>
To: Ursu Mihail <mihai@...uritate.md>
Cc: Full Disclosure <full-disclosure@...ts.grok.org.uk>
Subject: Re: Drupal 7.x Search Module - Full Path
	Disclosure

On Wed, Mar 14, 2012 at 2:39 PM, Ursu Mihail <mishka.ursu@...oo.com> wrote:

> Drupal 7.x Search Module - Full Path Disclosure
> ==============
> Summary
>
> Full path disclosure due to insufficient input validation in the search
> module.
> ==============
> Description
>
> Performing a search with the "keys" parameter set as an array, an error
> message shows the full path of the Drupal installation, leading to possible
> further attacks.
> For the error messages to be displayed, php.ini's display_errors must be
> On.
> Authentication: Not Needed
> ==============
> Mitigation
>
> Correct input validation for the "key" parameters
> ==============
> Exploit PoC
>
> example.com/?q=search&keys[]=securitate.md
> ==============
> Affected Versions
>
> Versions 7 < 7.12 are affected.
> Not tested on 6.
> ==============
> Credits
>
> Ursu Mihail [ http://securitate.md ]
> ==============
> Disclosure Timeline
>
> Reported to vendor on 1 Mar 2012.
> Response from vendor:
> Disclosure of the path is not considered a security risk.
> Drupal has a configuration setting which allows PHP warnings to be printed
> to the screen for debugging purposes... For production websites, it is a
> good idea to turn this off, and the messages will not be displayed.
> ==============
> Comments
>
> Unfortunately for them, many sites display errors in production.
> ==============
>
> _______________________________________________
> Full-Disclosure - We believe in it.
> Charter: http://lists.grok.org.uk/full-disclosure-charter.html
> Hosted and sponsored by Secunia - http://secunia.com/
>


btw. thats a pretty common problem.
I also reported a similar issue a while back about
https://dev.twitter.com/search/apachesolr_search/api?page[]=123 it seems
that the apachesolr_search drupal module also vulnerable. :/
http://code.google.com/p/twitter-api/issues/detail?id=2271
-- 
Ferenc Kovács
@Tyr43l - http://tyrael.hu

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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/