audit in /selinux directory

[Stephen Smalley]

On Fri, 2007-03-09 at 15:23 -0500, Steve Grubb wrote:
> On Friday 09 March 2007 14:31, Camilo Y. Campo wrote:
> > The cat command failed and audit is saying "success". A bit strange for
> > me. Could anybody clarify this point for me, please?
> 
> It works correctly for me:
> 
> fstat64(1, {st_mode=S_IFCHR|0620, st_rdev=makedev(136, 0), ...}) = 0
> open("/selinux/disable", O_RDONLY|O_LARGEFILE) = -1 EACCES (Permission denied)

You got EACCES rather than EINVAL, so your test didn't reach the same
point in the code path.  Try it as root (and with appropriate SELinux
role/domain if under -strict or -mls).

> write(2, "cat: ", 5cat: )                    = 5
> 
> type=PATH msg=audit(03/09/2007 15:21:10.652:947) : item=0 
> name=/selinux/disable inode=13 dev=00:0e mode=file,200 ouid=root ogid=root 
> rdev=00:00 obj=system_u:object_r:security_t:s0 
> type=CWD msg=audit(03/09/2007 15:21:10.652:947) :  cwd=/home/sgrubb 
> type=SYSCALL msg=audit(03/09/2007 15:21:10.652:947) : arch=i386 syscall=open 
> success=no exit=-13(Permission denied) a0=bfca4954 a1=8000 a2=0 a3=8000 
> items=1 ppid=4740 pid=4741 auid=sgrubb uid=sgrubb gid=sgrubb euid=sgrubb 
> suid=sgrubb fsuid=sgrubb egid=sgrubb sgid=sgrubb fsgid=sgrubb tty=pts0 
> comm=cat exe=/bin/cat subj=user_u:system_r:unconfined_t:s0 key=(null) 
> 
> Try running with strace so you can see the open syscall.
> 
> -Steve
> 
> --
> Linux-audit mailing list
> Linux-audit at redhat.com
> https://www.redhat.com/mailman/listinfo/linux-audit
-- 
Stephen Smalley
National Security Agency