Home page logo

pen-test logo Penetration Testing mailing list archives

Sharepoint privilege escalation - admin.dll+author.dll
From: kuffya () gmail com
Date: 27 Apr 2006 16:08:00 -0000

Hi list, 

I'm testing a sharepoint portal running on IIS 6.0.The exact version (banner based) is:
MicrosoftSharePointTeamServices: 6.0.2

I've identified the folllowing dlls, which are viewable (and perhaps modifiable, if the list helps) by non-admin 

When viewed, the first two return the following screen: 



    * status=262147
    * osstatus=0
    * msg=No "CONTENT_TYPE" in CGI environment.
    * osmsg= 

whilst the shtml.dll returns a 'sharepoint error' message. 

I did some serious googling and attempted various POST attacks that reportedly 
used to work (priv. escalation) back in the day. but without success. I've also seen a BlackHat presentation from 2003 
covering the same methods of attack (carefully crafted POSTing). These methods refer to Frontpage extensions, but I 
assume that the same principles are in use in sharepoint. 

I wonder if anyone out there has any interesting ideas or ways to achieve privilege escalation in such a scenario, or 
do anything othewise 'bad'. I'm not too optimistic, as this being a standard microsoft application must have been 
extensively tested before release and old bugs must have been fixed. Or not?

On another note, does one need to keep this files accessible/viewable at all?

Many thanks

This List Sponsored by: Cenzic

Concerned about Web Application Security? 
Why not go with the #1 solution - Cenzic, the only one to win the Analyst's 
Choice Award from eWeek. As attacks through web applications continue to rise, 
you need to proactively protect your applications from hackers. Cenzic has the 
most comprehensive solutions to meet your application security penetration 
testing and vulnerability management needs. You have an option to go with a 
managed service (Cenzic ClickToSecure) or an enterprise software 
(Cenzic Hailstorm). Download FREE whitepaper on how a managed service can 
help you: http://www.cenzic.com/news_events/wpappsec.php 
And, now for a limited time we can do a FREE audit for you to confirm your 
results from other product. Contact us at request () cenzic com for details.

  By Date           By Thread  

Current thread:
  • Sharepoint privilege escalation - admin.dll+author.dll kuffya (Apr 27)
[ Nmap | Sec Tools | Mailing Lists | Site News | About/Contact | Advertising | Privacy ]