full-disclosure - Re: MS OWA 2003 Redirection Vulnerability

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Date: Sat, 18 Oct 2008 11:19:07 -0700
From: "Morning Wood" <se_cur_ity@...mail.com>
To: "Davide Del Vecchio" <dante@...ghieri.org>, <bugtraq@...urityfocus.com>,
	<full-disclosure@...ts.grok.org.uk>, <secure@...rosoft.com>
Subject: Re: MS OWA 2003 Redirection Vulnerability -
	[MSRC7368br]

Discovered and reported 3 years ago

http://www.google.com/search?hl=en&q=oaw+exploit+exploitlabs.com+

http://www.exploitlabs.com/files/advisories/EXPL-A-2005-001-owa.txt

http://seclists.org/fulldisclosure/2005/Feb/0101.html

http://forums.techarena.in/small-business-server/1006421.htm

     Microsoft Outlook Web Access "owalogon.asp" Redirection Weakness



http://secunia.com/advisories/14144/

----- Original Message ----- 
From: "Davide Del Vecchio" <dante@...ghieri.org>
To: <bugtraq@...urityfocus.com>; <full-disclosure@...ts.grok.org.uk>; 
<secure@...rosoft.com>
Sent: Friday, October 17, 2008 12:07 PM
Subject: Re: [Full-disclosure] MS OWA 2003 Redirection Vulnerability - 
[MSRC7368br]


> Hi,
>
> I found and notified this vulnerability to Microsoft in date:
>
> Tue, 10 Apr 2007 15:40:13 +0200
>
> You read exactly, April 2007, 1 year and 6 months ago. :(
>
> The Microsoft Security Response Center opened the case ID MSRC 7368br.
>
> The bug has never been patched since 1 year and 6 months.
> I asked time to time for updates but they always answered me that the
> bug had to be patched with the next Service Pack and they did not have
> any ETA.
>
> This SP has still to be released.
>
> They told me that if I released the vulnerability prior to the official
> patch, I could not be officially credited for that. I tought it was not
> a critical vuln, and so I waited. Too much (?).
>
> I am a bit sorry for Microsoft, I think they lost an other chance since
> now I feel a bit tricked. I am not sure if the next time I will wait so
> much and I am not sure if I will suggest to anyone to wait for the
> patch. I just hope Microsoft will credit me in the official patch. :(
>
> Below you can find the first mail I wrote to MS regarding the issue.
>
> Best regards,
>
> Davide Del Vecchio.
>
>
> From: "Davide Del Vecchio" <dante@...ghieri.org>
> To: secure@...rosoft.com
>
> Subject: Microsoft Outlook Web Access "redir.asp" Redirection Weakness
> Date: Tue, 10 Apr 2007 15:40:13 +0200
>
> Hello,
>
> I found a weakness in Microsoft Outlook Web Access (OWA), which
> potentially can be exploited by malicious people to conduct phishing
> attacks.
> The weakness is caused due to a design error in the way OWA uses an
> unverified user supplied argument to redirect a user after successful
> authentication.
> This can e.g. be exploited by tricking a user into following a link from
> a HTML document to the trusted login page with a malicious "url" 
> parameter.
> After successful authentication, the user will be redirected to the
> untrusted (fake) site.
>
> The affected product is:
> Microsoft Outlook Web Access ( OWA )
> Windows 2003
>
> Examples:
> https://[owa-url]/exchweb/bin/redir.asp?URL=http://www.example.com
>
> this will take the user to http://www.example.com when the login box
> is pressed.
>
> https://[owa-url]/exchweb/bin/redir.asp?URL=http://www.example.com/setup.exe
> prompts the user to download an executable or other file.
>
> The attacker can then have a page to capture the user / password
> and redirect back to the original login page or some other form of
> phishing attack.
>
> Note that this vulnerability is very similar to the one affecting
> "owalogin.asp" described here:
> http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2005-0420
>
> Best regards,
>
> Davide Del Vecchio.
>
> Martin Suess ha scritto:
>
> ...
>
>> Timeline:
>> ---------
>> Vendor Status:      MSRC tracking case closed
>> Vendor Notified:    March 31st 2008
>> Vendor Response:    May 6th 2008
>> Advisory Release:   October 15th 2008
>> Patch available:    - (vulnerability not high priority)
>
>
> _______________________________________________
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