Security Basics mailing list archives
Re: Deny access to copy files
From: Ansgar -59cobalt- Wiechers <bugtraq () planetcobalt net>
Date: Tue, 24 Jun 2008 16:03:56 +0200
On 2008-06-24 Shreyas Zare wrote:
On Mon, Jun 23, 2008 at 11:41 PM, Michael P. Carter wrote:When any file is accessed the security parameters for that file are also read & loaded.But once the file data is in a program's buffer then there are no permissions inherited from the file for that memory. Even if you design such an system, its trivial to write 2 separate process, first process will read file data and pass it to other process by using COM/DCOM or just TCP/IP sockets and the second process will write the data in a new file.
Long story short: there is no way for the filesystem to enforce this kind of permission, meaning that it'd be utterly pointless to implement this kind of permission in the filesystem. Either you'd have to implement it as some kind of privilege (which are not tied to files in Windows' security concept) or you'd have to munge different security layers, which is less than desirable. Regards Ansgar Wiechers -- "All vulnerabilities deserve a public fear period prior to patches becoming available." --Jason Coombs on Bugtraq
Current thread:
- RE: Deny access to copy files, (continued)
- RE: Deny access to copy files Mason, Samuel (Jun 09)
- RE: Deny access to copy files Kevin Ortloff (Jun 13)
- RE: Deny access to copy files James Finnican (Jun 17)
- Re: Deny access to copy files GSO GSO (Jun 17)
- Re: Deny access to copy files Atif Azim (Jun 19)
- RE: Deny access to copy files Michael P. Carter (Jun 19)
- Re: Deny access to copy files Shreyas Zare (Jun 20)
- Message not available
- Re: Deny access to copy files Shreyas Zare (Jun 23)
- Message not available
- Re: Deny access to copy files Shreyas Zare (Jun 23)
- Message not available
- Re: Deny access to copy files Shreyas Zare (Jun 24)
- Re: Deny access to copy files Ansgar -59cobalt- Wiechers (Jun 24)
- RE: Deny access to copy files James Finnican (Jun 17)
- Message not available
- Message not available
- Message not available
- Re: Deny access to copy files Shreyas Zare (Jun 24)
- Re: Deny access to copy files Jeremy Winder (Jun 24)
- Re: Re: Deny access to copy files Breno BF (Jun 03)
- Re: Deny access to copy files Al MailingList (Jun 11)
- RE: Deny access to copy files Craig Wright (Jun 12)