Bugtraq mailing list archives
Re: Disk (over)quota in Windows 2000
From: mikael.olsson () ENTERNET SE (Mikael Olsson)
Date: Wed, 1 Mar 2000 09:11:00 +0100
Peter Gutmann wrote:
Dave Tarbatt - ACS <D.A.Tarbatt () BOLTON AC UK> writes:I've been looking into disk quotas under Windows 2000 and have uncovered a few anomalies. On top of a few peculiarities there appears to be a bug which allows a user to exceed their disk quota by as much as they wish.Isn't this just a cluster-size filling issue? It looks like accounting is being done on a bytes-used basis but files are managed on a per-cluster basis, so it's possible to extend files out to fill the cluster without coming into conflict with the quota system.
Not "just" a cluster-size filling issue. The idea of quotas is preventing people from using all available hard disk space, as that is a VERY effective DoS. This bug means that W2K basically does not have any quotas, since it does not provide that protection. -- Mikael Olsson, EnterNet Sweden AB, Box 393, S-891 28 ÖRNSKÖLDSVIK Phone: +46 (0)660 105 50 Fax: +46 (0)660 122 50 Mobile: +46 (0)70 248 00 33 WWW: http://www.enternet.se E-mail: mikael.olsson () enternet se
Current thread:
- Re: Disk (over)quota in Windows 2000 Ian Turner (Feb 29)
- [XFree86 3.3.6] fix for race conditions in xterm logfile handling Branden Robinson (Mar 01)
- Re: [XFree86 3.3.6] fix for race conditions in xterm logfile handling Joel Klecker (Mar 02)
- ColdFusion Bug: Application.cfm shows full path vwaaijen (Mar 05)
- Re: [XFree86 3.3.6] fix for race conditions in xterm logfile handling Olaf Kirch (Mar 06)
- Re: Disk (over)quota in Windows 2000 Joe Melhado (Mar 01)
- Re: Disk (over)quota in Windows 2000 David LeBlanc (Mar 03)
- <Possible follow-ups>
- Re: Disk (over)quota in Windows 2000 Mikael Olsson (Mar 01)
- Re: Disk (over)quota in Windows 2000 Sarkos Georgios (Mar 01)
- Re: Disk (over)quota in Windows 2000 Curtis Anderson, CNE, MCSE (Mar 02)
- Re: Disk (over)quota in Windows 2000 Bret Piatt (Mar 01)
- Re: Disk (over)quota in Windows 2000 John Wiltshire (Mar 01)
- [XFree86 3.3.6] fix for race conditions in xterm logfile handling Branden Robinson (Mar 01)