Bernd Walter wrote:
> On Fri, Jul 12, 2002 at 10:23:35PM +0100, void wrote:
> > On Wed, Jul 10, 2002 at 02:30:19PM +0200, Bogdan TARU wrote:
> > > 
> > >   Hi guys,
> > > 
> > >  I have just rebooted my machine, and immediately after boot I have run
> > > 'sysctl -a' as an usual user. Well, in 'kern.msgbuf' I have found the
> > > whole master.passwd file, with combinations of usernames/passwords. Isn't
> > > that a security threat?
> > 
> > Do you know how it got in there in the first place?  I'd say that's the
> > security problem.
> 
> I would asume something like editing the passwd in single use mode.
> kern.msgbuf should be closed for non root users - IMO.

The real problem is that a year or so ago phk added code that
unconditionally logged the /dev/console output in the msgbuf so that it
could be logged as /var/log/console.log.

This is one of the unfortunate side effects.  Another one is that /dev/console
output blows away the boot messages.

I've been looking for an excuse to disable and/or reimplement this properly
for ages, but it never got urgent enough.  IMHO, the console output should
go to a seperate buffer [which is restricted to root-only], and uses a
different output channel to syslogd.

Cheers,
-Peter
--
Peter Wemm - [EMAIL PROTECTED]; [EMAIL PROTECTED]; [EMAIL PROTECTED]
"All of this is for nothing if we don't go to the stars" - JMS/B5


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