Home page logo
/

bugtraq logo Bugtraq mailing list archives

Re: /proc filesystem allows bypassing directory permissions on Linux
From: psz () maths usyd edu au
Date: Tue, 27 Oct 2009 08:58:39 +1100

Dear Casper and Dan,

If you can control<pid>, then clearly you have access the file anyway
simply by controlling it using a debugger.

Sorry, but no. The "attacker" has the file opened O_RDONLY, and cannot
"upgrade" that to O_RDWR.

Cheers, Paul

Paul Szabo   psz () maths usyd edu au   http://www.maths.usyd.edu.au/u/psz/
School of Mathematics and Statistics   University of Sydney    Australia


  By Date           By Thread  

Current thread:
[ Nmap | Sec Tools | Mailing Lists | Site News | About/Contact | Advertising | Privacy ]
AlienVault