bugtraq - RE: Tests about semicolon zero-day (BID 37460)

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Date: Tue, 29 Dec 2009 19:03:59 -0200
From: "Nelson Brito" <nbrito@...ure.org>
To: "'Crash - DcLabs'" <crashbrz@...il.com>,
	<bugtraq@...urityfocus.com>
Subject: RE: Tests about semicolon zero-day (BID 37460)

Okay, here is a good question after read the updated version of HD Moore Blog
post [1]:
(btw, that is the same question we are talking in twitter)
- Based on the blog post "Results of Investigation into Holyday ISS Claim"
(MSRC) [2], there is no vulnerability related to this case, right? BUT... If a
user has a weak password, a guessable password, you can GUESS the user's
password and get the user's access... Getting all the privileges he/she has.

Okay, I know that there are a lot of best practices floating around, describing
many, many ways to enforce the users to create a strong password instead... But
according to my experience in pen-tests, the easiest way to get a system access
is guessing users' passwords. RIGHT?

In a dynamic WWW, things change and "'write' and 'execute' privileges on the
same directory" (QUOTED) [2] is not a "IMPOSSIBLE AND UNBELIEVABLE" thing.

"If the weather is good, the waves are good... Let's surfing!"

So I think they should change the term "not a vulnerability" to "vulnerabilistic
feature"... I know that this word does not exist, anyway. =)

PS: Don't send me any flame if you didn't check the "vulnerability" [3]
definition.

[1] http://blog.metasploit.com/2009/12/exploiting-microsoft-iis-with.html
[2]
http://blogs.technet.com/msrc/archive/2009/12/29/results-of-investigation-into-h
oliday-iis-claim.aspx
[3] http://en.wikipedia.org/wiki/Vulnerability_(computing)



/*
 * $Id: .siganture,v 1.3 2009-12-11 09:22:54-02 nbrito Exp $
 *
 * Author: Nelson Brito <nbrito [at] sekure [dot] org> 
 
   Copyright(c) 2004-2009 Nelson Brito. All rights reserved worldwide.
   http://fnstenv.blogspot.com */


> -----Original Message-----
> From: Crash - DcLabs [mailto:crashbrz@...il.com]
> Sent: Monday, December 28, 2009 8:28 PM
> To: bugtraq@...urityfocus.com
> Subject: Tests about semicolon zero-day (BID 37460)
> 
> Tests about semicolon zero-day (BID 37460)
> 
> Tests in Windows XP SP3 and IIS 5.1
> The results are:
> 18:21:18 172.16.5.79 GET /t.asp;.jpg 200
> The file founded,  but not interpreted! IIS print the asp souce code at
> screen.
> 
> Testing in 2003 Server IIS 6.0 SP 2 works perfect!  the .jpg is
> interpreted as .asp
> 2009-12-28 18:56:37 W3SVC1 172.16.5.79 GET /t.asp;.jpg - 80 -
> 172.16.6.16 Mozilla/4.0+(compatible;+MSIE+
> 8.0;+Windows+NT+5.2;+Trident/4.0;+.NET+CLR+1.1.4322;+.NET+CLR+2.0.50727;+.N
> ET+CLR+3.0.04506.30;+.NET+CLR+3.0.04506.648;+.NET+CLR+3.0.4506.2152;+.NET+C
> LR+3.5.30729)
> 200 0 0
> 
> Testing in 2008 Server  IIS 7.0 SP1
> Return same Windows XP, source code printed at screen.
> 
> -------------------
> Crash
> DcLabs