Re: personal web server directory traversal vulnerability patch

[Gary Flynn <flynngn () jmu edu>]

David Raitzer wrote:
> I assembled an effective patch for the UNICODE directory traversal
> vulnerability issue in Microsoft Personal Web Server 4.0 for Windows 95/98,
> which was noted previously on this list.  It can be downloaded at:
> http://www.geocities.com/p_w_server/pws_patch/index.htm

David,

I was spending my morning trying to decide how to address this issue
and saw your email. Talk about timing. :)

Being responsible (paranoid?), I wanted to verify the patch files
against the Microsoft equivalents. I had assumed that you mixed and
matched existing Microsoft dlls and exes from the various patches and 
created your own installer.

I unpackaged the -010 and -078 patches and tried to do file compares.
Many of the .DLL files in your package didn't match files in either
Microsoft package.

I also couldn't find some of the version numbers included in your package 
on the Microsoft DLL Help database.

Anyway, I was curious where these files came from. Did you use a binary
editor to patch them or recreate them from scratch somehow? Or am I just 
looking in the wrong places?

thanks,
-- 
Gary Flynn
Security Engineer - Technical Services
James Madison University

Please R.U.N.S.A.F.E.
http://www.jmu.edu/computing/info-security/engineering/runsafe.shtml


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