Date: Mon, 1 Nov 1999 18:40:31 +0100 From: Eivind Eklund <eivind@FreeBSD.ORG> To: Spidey <beaupran@iro.umontreal.ca> Cc: freebsd-security@FreeBSD.ORG Subject: Re: Examining FBSD set[ug]ids and their use Message-ID: <19991101184031.O72085@bitbox.follo.net> In-Reply-To: <14365.50723.872972.30971@anarcat.dyndns.org>; from beaupran@jsp.umontreal.ca on Mon, Nov 01, 1999 at 11:56:03AM -0500 References: <14364.64172.638014.558487@anarcat.dyndns.org> <19991101173955.L72085@bitbox.follo.net> <14365.50723.872972.30971@anarcat.dyndns.org>
next in thread | previous in thread | raw e-mail | index | archive | help
On Mon, Nov 01, 1999 at 11:56:03AM -0500, Spidey wrote: > --- Big Brother told Eivind Eklund to write, at 17:39 of November 1: > > On Sun, Oct 31, 1999 at 09:27:56PM -0500, Spidey wrote: > > > # The suid bit is NOT necessary for any usage I could find... > > > df gname=operator mode=2555 > > > > The suid bit is necessary for users to be able to inspect the amount > > of disk space free on unmounted disks. > > I must be missing something here. When a disk is unmounted, it does > not appear in the df output, no? No, but a user can explictly run df against an unmounted file system. (Not after I get my dirty fingers out of -current, though). > > > # High scores management > > > sol uname=games gname=games mode=6755 > > > > This looks like a bug in some port, actually. We shouldn't normally > > have anything that is setuid games, only setgid. > > Oh. And why? Because somebody getting an extra group makes less harm than them getting an extra UID - an extra GID lets them get extra access, while an alternative UID give them extra access *and* lets them hide who they are. Eivind. To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-security" in the body of the message
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?19991101184031.O72085>