Bugtraq mailing list archives

Re: S/Key & OPIE Database Vulnerability


From: david () FUNDY CA (David Maxwell)
Date: Sun, 23 Jan 2000 22:13:08 -0400


On Fri, Jan 21, 2000 at 07:15:20PM -0600, harikiri wrote:
w00w00 Security Advisory - http://www.w00w00.org

Title:                S/Key & OPIE Database Vulnerability
Platforms:    BSD/OS 4.0.1 (SKEY).
              FreeBSD 3.4-RELEASE (OPIE).
              Linux Distributions (with skey-2.2-1 RPM).
              Any Unix running skey-2.2. (possibly earlier versions too)
Discovered:   14th January, 2000

NetBSD began installing a mode 600 /etc/skeykeys file as of Jan 6, 1999.
This issue would not affect the two most recent formal releases, 1.4,
and 1.4.1 - as they include the more secure default.

Users of skey on earlier installs should evaluate appropriate permissions
for their /etc/skeykeys file based on local requirements (e.g. non-setuid
programs performing authentication) - as indicated in the w00w00 advisory.

I'm not a member of the NetBSD security team, I'm just speaking as a user...

--
David Maxwell, david () vex net|david () maxwell net -->
Any sufficiently advanced Common Sense will seem like magic...
                                              - me



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