Date: Mon, 11 Jan 2010 08:15:17 -0500 (EST) From: Josh Bressers <bressers@...hat.com> To: oss-security@...ts.openwall.com Cc: Tomas Hoger <thoger@...hat.com> Subject: Re: CVE id request: GNU libc: NIS shadow password leakage ----- "Christoph Pleger" <Christoph.Pleger@...tu-dortmund.de> wrote: > > I did a little testing with a Linux NIS client and a Linux NIS server, > also with the same client and a Solaris NIS server. I used tcpdump to > look at the network traffic and saw that, when ypcat is called as root, > it uses privileged ports. Of course, when called by a non-root user, it > only uses non-privileged ports. > > It seems that Linux NIS servers as well as Solaris NIS servers expect > that the request is sent from a privileged port when someone wants to > look at the "secret" maps, so it is not possible for every user to see > the encrypted NIS passwords, but only for root. This is still a security > risk in an environment where every user can connect his or her own > notebook, but that's another problem. > I was mistaken, this certainly deserves a CVE id. Please use CVE-2010-0015 Thanks. -- JB
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