linux-kernel - Re: NFS4 authentification / fsuid

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-Id: <1188484337.6755.41.camel@heimdal.trondhjem.org>
Date:	Thu, 30 Aug 2007 10:32:17 -0400
From:	Trond Myklebust <trond.myklebust@....uio.no>
To:	Jan Engelhardt <jengelh@...putergmbh.de>
Cc:	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: Re: NFS4 authentification / fsuid

On Thu, 2007-08-30 at 10:29 -0400, Trond Myklebust wrote:
> We've got people working on fixing this problem using David Howells'
> keyrings, but it will probably be a while until we've solved all the
> upcall issues, and it will probably take even longer to push the
> kerberos changes back to the official MIT etc distros.

BTW: even when this task is done, a creative root can still find ways to
subvert the security (he can read /dev/mem, replace the kernel with a
compromised one, ....). The bottom line is that if you can't trust root,
don't even log in.

Trond

-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/