Re: xscreensaver bug?

From: Terry Lambert <tlambert2_at_mindspring.com>
Date: Fri, 14 Nov 2003 01:17:48 -0800
Craig Boston wrote:
> > Absolutely worst case, the root user could log in remotely, gdb
> > your screen saver, type "foobar" as the password, and then hack
> > the authentication function return value to say "yes, that's the
> > correct password for "jqdkf_at_army.com", and get in without needing
> > to have xscreensaver accept the root password.
> 
> Or, even easier, log in remotely as root and simply "killall -9 xscreensaver".
> I've had to do that a few times myself when I first tried out pam_krb5 and
> learned the hard way that xscreensaver doesn't like it very much (and my user
> account has * in the local password field).

I've seen a kill of xscreensaver using a nontrappable signal leave
the focus permanently hosed (until the X server is restarted); not
very useful, if you want to poke around in the active session.

-- Terry
Received on Fri Nov 14 2003 - 00:19:50 UTC

This archive was generated by hypermail 2.4.0 : Wed May 19 2021 - 11:37:29 UTC