capture mount event in /var/log/audit/audit.log

capture mount event in /var/log/audit/audit.log

[Betty Man]

Hi Everyone,

 in RHEL 5.5    kernel  2.6.18-194.el5         audit-1.7.17-3.el5

Have the following in the /etc/audit/audit.rules
## non-privilege users using mount command.
 -a exit,always -F arch=b32 -S mount -F auid>=500 -F auid!=4294967295 -k export
-a exit,always -F arch=b64 -S mount -F auid>=500 -F auid!=4294967295 -k export

from a general user account

$ mount /dev/hdc /dev/cdrom
mount: only root can do that

but /var/log/audit/audit.log   does not capture this event

Any input is much appreciated!

Thanks in advance

Betty

Re: capture mount event in /var/log/audit/audit.log

[Linda Knippers]

Betty Man wrote:
> Hi Everyone,
> 
>  in RHEL 5.5    kernel  2.6.18-194.el5         audit-1.7.17-3.el5
> 
> Have the following in the /etc/audit/audit.rules
> ## non-privilege users using mount command.
>  -a exit,always -F arch=b32 -S mount -F auid>=500 -F auid!=4294967295 -k export
> -a exit,always -F arch=b64 -S mount -F auid>=500 -F auid!=4294967295 -k export

This audits the mount system call, rather than the mount command.
> 
> from a general user account
> 
> $ mount /dev/hdc /dev/cdrom
> mount: only root can do that
> 
> but /var/log/audit/audit.log   does not capture this event
> 
> Any input is much appreciated!

My guess is that the mount command is doing its own check and is
failing before it attempts the mount system call.  If you run

$ strace mount /dev/hdc /dev/cdrom

you'll see the system calls that are executed.
I suspect there is no mount system call in the output.

-- ljk
> 
> Thanks in advance
> 
> Betty
> 
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