18.06.2012 18:32, Chris Rees ???????:
On Jun 18, 2012 2:34 PM, "Budnev Vladimir" <vladimir.bud...@gmail.com
<mailto:vladimir.bud...@gmail.com>> wrote:
>
> Hello everyone.
> We'v noticed some strange situation. After reboot and login, system
didn't ask for password while switchig with su -l.
>
> In details, there was root login from terminal and one from ssh.
> Terminal login was directly as root(via ip-console), and ssh was as
user, then attemped switch to root with su -l, and there were NO
password request,no prompt at all. At the same time login from
terminal accepted root password, first I thought that means password
wasn't empty, but system even with empty password should print
"Password:"..and that time it was nothing absolultey.
Empty password behaviour is for no prompt, so what you are seeing is
normal, and means that you did indeed have a empty password.
Interesintg could it be that master.passwd file corrupted (after power
shutdown) and fsck corrected in background.. which resulted in such
behaviour.
The strange thing with possibly empty password is that login from
ip-console accepted correct password. So dont sure about empty...It
seems like su was accepting any password at that time.
Check your logs very carefully over the past few weeks to make sure no
one has broken in.
Yeah, seems we are forced to mount disks to another system and check for
changes in critical system tools. Argh....and then anyway redeploy system.
Chris
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