RE: the meaning of this audit entry

["Mike Nixon" <mnixxon@gmail.com>]

Looks to me like someone that was logged in as 'root' attempted but failed
to read a x-windows file.  The relevant tipoffs are:

syscall=3  (read)
success=no	(failed)
uid=0		(root user account)
comm="X" or exe="/usr/X11R6/bin/Xorg"

Mike

-----Original Message-----
From: linux-audit-bounces@redhat.com [mailto:linux-audit-bounces@redhat.com]
On Behalf Of Bill Tangren
Sent: Tuesday, November 20, 2007 10:37 AM
To: linux-audit@redhat.com
Subject: Re: the meaning of this audit entry


On DATE, the author spaketh: Steve Grubb
> On Monday 19 November 2007 04:22:12 pm Bill Tangren wrote:
>> I'd like to know what this audit log entry means:
>
> It is easier to understand these when you give the '-i' option to
> ausearch. It
> changes things from numeric to text values. It also grounds all records
> that
> make up the event so that you can see all of it.

For this event:

type=SYSCALL msg=audit(1195572240.060:2971371): arch=40000003 syscall=3
success=no exit=-11 a0=12 a1=97721e8 a2=1000 a3=9782c18 items=0 pid=3538
auid=517 uid=0 gid=0 euid=0 suid=0 fsuid=0 egid=0 sgid=0 fsgid=0 comm="X"
exe="/usr/X11R6/bin/Xorg"

I issued this command:

# ausearch -i -a 2971371

type=SYSCALL msg=audit(11/20/2007 10:24:00.060:2971371) : arch=i386
syscall=read success=no exit=-11(Resource temporarily unavailable) a0=12
a1=97721e8 a2=1000 a3=9782c18 items=0 pid=3538 auid=bjt uid=root gid=root
euid=root suid=root fsuid=root egid=root sgid=root fsgid=root comm=X
exe=/usr/X11R6/bin/Xorg

Now, this system is plugged into a KVM switch, and sometimes the sysadmin
who logs into the GUI stays logged in for days (he forgots to log out),
and the switch is changed to some other system. I don't know if any of
this has anything to do with why I'm getting 500MB worth of logs every
day, but I have noticed that the logs are this big whenever someone is
logged into the GUI.

BTW, this is a RHEL ES 4.6 system.


-- 
Bill Tangren
U.S. Naval Observatory

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