On Tue, Dec 29, 2009 at 10:32:19PM +0100, Göran Uddeborg wrote:
> Whenever I do "su" in an xterm window, I get two AVC denials. The
> command xauth is denied to read and write a file .xauthXXXXX where
> XXXXX is some random string different each time. (I encose an example
> below.)
>
> I would bugzilla this, but I'm (as often) not quite sure if it's the
> policy or if it's me. That is, if maybe this is not intended to be
> allowed? Or if there there something else I might be missing? I
> can't see any boolean I would connect to this.
>
> So, is this a bug I should report, or is it intentional?
Hmm ignore my latest reply. Seems there is a rule that does the domain transition:
optional_policy(`
xserver_domtrans_xauth(sshd_t)
')
So, i am running out of clues.
BTW: It is not encouraged to login as root via ssh (-X)
>
> ----
> time->Tue Dec 29 21:32:48 2009
> type=SYSCALL msg=audit(1262118768.835:41732): arch=c000003e syscall=21 success=no exit=-13 a0=7fff99bd14d5 a1=2 a2=0 a3=7fff99bcfd10 items=0 ppid=5506 pid=5511 auid=503 uid=0 gid=0 euid=0 suid=0 fsuid=0 egid=0 sgid=0 fsgid=0 tty=pts6 ses=96 comm="xauth" exe="/usr/bin/xauth" subj=unconfined_u:unconfined_r:xauth_t:s0-s0:c0.c1023 key=(null)
> type=AVC msg=audit(1262118768.835:41732): avc: denied { write } for pid=5511 comm="xauth" name=".xauthbDy84s" dev=dm-0 ino=5341320 scontext=unconfined_u:unconfined_r:xauth_t:s0-s0:c0.c1023 tcontext=unconfined_u:object_r:admin_home_t:s0 tclass=file
> ----
> time->Tue Dec 29 21:32:48 2009
> type=SYSCALL msg=audit(1262118768.836:41733): arch=c000003e syscall=2 success=no exit=-13 a0=7fff99bd14d5 a1=0 a2=1b6 a3=0 items=0 ppid=5506 pid=5511 auid=503 uid=0 gid=0 euid=0 suid=0 fsuid=0 egid=0 sgid=0 fsgid=0 tty=pts6 ses=96 comm="xauth" exe="/usr/bin/xauth" subj=unconfined_u:unconfined_r:xauth_t:s0-s0:c0.c1023 key=(null)
> type=AVC msg=audit(1262118768.836:41733): avc: denied { read } for pid=5511 comm="xauth" name=".xauthbDy84s" dev=dm-0 ino=5341320 scontext=unconfined_u:unconfined_r:xauth_t:s0-s0:c0.c1023 tcontext=unconfined_u:object_r:admin_home_t:s0 tclass=file
>
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