On Monday, June 10, 2013 11:48:15 AM Miloslav Trmač wrote:
> > > Is there any way to make pam_tty_audit log not only
what the user
> > > types but also what the server sends back?
> >
> > No, this is currently not possible.
>
> Impossible as in 1) what is already shipped can't do this, or 2) no amount
> of code being added to the kernel can do this, or 3) for upstream
> political reasons?
Primarily 1), also
4) auditing output is a little more difficult because it's much more common
to have a _lot_ of output (e.g. (find -name '*.c')), so TTY auditing should
probably be able to throttle the TTY throughput. (In principle the same
problem is with input as well - with a PTY I can cause massive amount of
data to be audited - but it doesn't occur accidentally.)
Probably would need to escape/drop all the control characters, too, so report
display terminal doesn't get hijacked. :-) But yes, I could see someone
DoS'ing the machine easily now that you mention it.
-Steve