There is another way we used to pass PCI-DSS.
We use an audit rule to log all EXECVE happening on production servers, rsyslog the logs to the remote centralized logs server, then parse the audit logs there using a cron script and rebuild the commands issued on each server by any user id.
Hope this helps.
Le 13/07/2012 15:27, Steve Grubb a écrit :
Hmm...I thought I sent an answer. The problem from the kernel's perspective is
that it has no idea what user space is doing. It can't tell a password from
anything else being typed. There is a flag that can be set for the TTY to hide
characters. But the issue then becomes that now you have a loophole that a
crafty admin could use to hide what he's really doing.
If anyone has ideas on how to improve this, I think we should.
-Steve
Yeah, I was afraid of that...
At least, thanks for clarifying.
I guess I'll stick with stating: don't fire any real root shell to all my sysadmins in the PCI-DSS scope. (as it's impossible to completely forbid all possible case , eg: forbid sudo -*, sudo sudo *, sudo su * but hell, you can't forbid sudo ./foo.sh where foo fires a shell, there is NOEXEC in sudo but then you can't do anything except reading...)
Anyway, I'm getting away of the real matter, avoiding to audit-log passwords keystrokes.
--
Cheers,
Florian Crouzat
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