[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
Re: /proc filesystem allows bypassing directory permissions on Linux
- To: bugtraq@xxxxxxxxxxxxxxxxx
- Subject: Re: /proc filesystem allows bypassing directory permissions on Linux
- From: Ansgar Wiechers <bugtraq@xxxxxxxxxxxxxxxx>
- Date: Mon, 26 Oct 2009 19:37:38 +0100
On 2009-10-24 Derek Martin wrote:
> 1. It circumvents the fact that to write to a file, you MUST be able
> to write to its directory, so that the file attributes can be updated.
Wrong, because the file's attributes aren't stored in the directory, but
in the respective inode.
Regards
Ansgar Wiechers
--
"All vulnerabilities deserve a public fear period prior to patches
becoming available."
--Jason Coombs on Bugtraq