Bugtraq mailing list archives
Re: Bug in IIS and PWS but only for Windows 9x. Re: Personal web
From: marcs () ZNEP COM (Marc Slemko)
Date: Wed, 20 Jan 1999 10:01:19 -0800
On Wed, 20 Jan 1999, Victor Lavrenko wrote:
"Aleph" == Aleph One <aleph1 () UNDERGROUND ORG> writes:Hello everybody. This bug exists because Windows 9x has a nice feature. When you excecute "cd .." it goes to the parent directory, and "cd ..." goes to the parent directory of parent directory etc. Windows NT has no such feature so it isn't exploitable.
Yup. I haven't looked into the issue with these particular servers, but Apache on Win32 used to be impacted by this same issue until it was fixed in 1.3.1. I think we have run into a half dozen different special case situations in Apache where "magic" filenames needed to be dealt with specially under 95 and/or NT to avoid security holes. You have to deal with: - case sensitivity - short filenames - trailing "."s on filenames - three or more "."s - special filenames (eg. "aux") Those are all the "multiple names for one file" or "magic file name" issues I can think of right now; I am sure there are more that I can't think of and that I don't know about. At various times, various Win32 web servers have been vulnerable to the above issues. Unfortunately, trying to find a canonical list of the ways that filename variance can occur in Windows is difficult, and it is obvious that Microsoft doesn't have it down either, based on the fact that many of these bugs have appeared in IIS in the past as well. These issues also can appear differently depending on if you are using 95/98/NT3.5/NT4 and depending on what filesystem you are using, so testing for them isn't as simple as you would hope. It really makes me wish for a nice young system, one that didn't have time to get all this accumulated cruft. Oh. Wait. Unix is a crufty old system and even it doesn't have this particular cruft. In this particular area, Windows gets a heck of a lot of thumbs down.
Current thread:
- Re: Personal web server kiborg (Jan 18)
- <Possible follow-ups>
- Re: Personal web server Sean Coates (Jan 18)
- Re: Personal web server Aleph One (Jan 19)
- Bug in IIS and PWS but only for Windows 9x. Re: Personal web Victor Lavrenko (Jan 20)
- Re: Bug in IIS and PWS but only for Windows 9x. Re: Personal web Marc Slemko (Jan 20)
- Bug in IIS and PWS but only for Windows 9x. Re: Personal web Victor Lavrenko (Jan 20)
- Re: Personal web server Michael Howard (Jan 19)
- Re: Personal Web Server Fredrick Moore (Jan 19)
- Re: Personal web server Sean Coates (Jan 19)
- Re: Personal web server Aleph One (Jan 20)
- Re: Personal web server Aleph One (Jan 20)
- Re: Personal web server Steven M. Bellovin (Jan 20)
- Re: Personal web server Aleph One (Jan 21)
- Re: Personal Web Server Ian O'Friel (Jan 22)
- Re: Personal Web Server Eric Stevens (Jan 24)
- Re: Personal Web Server Tris (Jan 24)