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 accounts: /_vti_bin/_vti_adm/admin.dll /_vti_bin/_vti_aut/author.dll /_vti_bin/shtml.dll When viewed, the first two return the following screen: method= status= * 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 (http://www.packetstormsecurity.org/9910-exploits/webfolders.txt) 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 Stelios ------------------------------------------------------------------------------ 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. ------------------------------------------------------------------------------
Current thread:
- Sharepoint privilege escalation - admin.dll+author.dll kuffya (Apr 27)