full-disclosure - Re: Abuse of Functionality vulnerabilities in Drupal

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Date: Mon, 21 Feb 2011 10:00:35 -0500
From: Justin Klein Keane <justin@...irish.net>
To: MustLive <mustlive@...security.com.ua>
Cc: full-disclosure@...ts.grok.org.uk, bugtraq@...urityfocus.com,
	submissions@...ketstormsecurity.org
Subject: Re: Abuse of Functionality vulnerabilities in
	Drupal

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- ------------
Timeline:
- ------------

2009.03.05 - disclosed at http://www.madirish.net/?article=239
2009.03.15 - posted to FD (http://seclists.org/fulldisclosure/2009/Mar/115)
2010.12.20 - MustLive announced at my site.
2010.12.21 - MustLive informed developers.
2011.02.18 - disclosed at MustLive's site.

Justin C. Klein Keane
http://www.MadIrish.net

The digital signature on this message can be confirmed
using the public key at http://www.madirish.net/gpgkey

On 02/19/2011 02:28 PM, MustLive wrote:
> Hello list!
> 
> I want to warn you about Abuse of Functionality vulnerabilities in Drupal.
> 
> -------------------------
> Affected products:
> -------------------------
> 
> Vulnerable are Drupal 6.20 and previous versions.
> 
> ----------
> Details:
> ----------
> 
> Abuse of Functionality (WASC-42):
> 
> There is unreliable mechanism of changing password in the system. In user
> profile (http://site/user/1/edit) it's possible to change password without
> knowing of current password. And even there is protection against CSRF in
> the form, this will not protect against Abuse of Functionality.
> 
> Because with using of XSS vulnerabilities it's possible to bypass this
> protection and conduct remote attack for changing of the password (including
> administrator's one). Or at session hijacking via XSS it's possible to get
> into account and change the password. Or it's possible to do that at
> temporarily access to user's computer, from which he logged in to his
> account.
> 
> Abuse of Functionality (WASC-42):
> 
> Besides two before-mentioned methods (http://websecurity.com.ua/4763/),
> there are the next methods for enumerating of logins of the users.
> 
> At the forum (http://site/forum) logins of the users show, which posted at
> the forum (opened a topic or wrote a comment).
> 
> In section Recent posts (http://site/tracker) at pages "All last posts" and
> "My posts" logins of the users show, which wrote posts at the site. Attack
> is possible to conduct only for logged in users.
> 
> In posts of the blog (http://site/content/post), and also in comments to
> blog posts and other pages of the site (http://site/page) logins of the
> users show, which made a post in blog or made a comment.
> 
> In password recovery form (http://site/user/password) it's possible on find
> existent logins and e-mails of the users at the site. If to send incorrect
> login or e-mail then the message shows "Sorry, ... is not recognized as a
> user name or an e-mail address.", and if to send correct login or e-mail,
> then this message will not show.
> 
> ------------
> Timeline:
> ------------
> 
> 2010.12.20 - announced at my site.
> 2010.12.21 - informed developers.
> 2011.02.18 - disclosed at my site.
> 
> I mentioned about these vulnerabilities at my site
> (http://websecurity.com.ua/4776/).
> 
> Best wishes & regards,
> MustLive
> Administrator of Websecurity web site
> http://websecurity.com.ua
> 
> 
> _______________________________________________
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