euid missing

Chris Nandor pudge at pobox.com
Wed Jul 13 16:51:20 UTC 2016


Ah, thanks.  I had only recently added -k rootcmd so I didn't notice it was
different earlier ... but I should've noticed this time.  Thanks!

On Wed, Jul 13, 2016 at 9:39 AM, Steve Grubb <sgrubb at redhat.com> wrote:

> On Wednesday, July 13, 2016 9:27:25 AM EDT Chris Nandor wrote:
> > As mentioned in previous e-mail, we want to log what users do as root.  I
> > have these two rules, only:
> >
> > -a exit,always -F arch=b32 -F euid=0 -F auid>=0 -F auid!=4294967295 -S
> > execve -k rootcmd
> > -a exit,always -F arch=b64 -F euid=0 -F auid>=0 -F auid!=4294967295 -S
> > execve -k rootcmd
> >
> > But this line shows up:
> >
> > node=grax.sea.marchex.com type=ANOM_ABEND
> > msg=audit(1468426871.752:3282575): auid=811 uid=811 gid=811 ses=12
> > pid=18504 comm="chromium-browse" reason="seccomp" sig=0 syscall=91
> compat=0
> > ip=0x7f296c759c77 code=0x50001
>
> There are two kinds of events. There are the ones that are triggered by the
> rules you load, and there are rules that are hardwired to be logged because
> something significant happened. In this case the seccomp filter killed
> chromium-browse because it violated policy. It has nothing to do with your
> rules which have a rootcmd key.
>
> To find the events triggered by your rule, use:
> ausearch --start today -k rootcmd -i
>
> -Steve
>
> > My guess is that it is because euid is missing; maybe euid=0 is true if
> > euid is null?  I could put uid=0, instead of euid ... but that isn't
> > exactly what I want, I think.  Is there a way to have the rule require
> euid
> > actually be 0?
> >
> > --Chris
>
>
>
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