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Bug 616826 - avc: denied { transition } for ... comm="env" path="/etc/rc.d/init.d/ricci" ...
Summary: avc: denied { transition } for ... comm="env" path="/etc/rc.d/init.d/ricci" ...
Keywords:
Status: CLOSED CURRENTRELEASE
Alias: None
Product: Red Hat Enterprise Linux 6
Classification: Red Hat
Component: selinux-policy
Version: 6.0
Hardware: All
OS: Linux
low
medium
Target Milestone: rc
: ---
Assignee: Miroslav Grepl
QA Contact: Milos Malik
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2010-07-21 13:44 UTC by Milos Malik
Modified: 2012-10-16 12:30 UTC (History)
2 users (show)

Fixed In Version: selinux-policy-3.7.19-33.el6
Doc Type: Bug Fix
Doc Text:
Clone Of:
Environment:
Last Closed: 2010-11-10 21:35:26 UTC
Target Upstream Version:
Embargoed:

Attachments (Terms of Use)

Description Milos Malik 2010-07-21 13:44:35 UTC 
Description of problem:


Version-Release number of selected component (if applicable):
selinux-policy-3.7.19-32.el6.noarch
selinux-policy-targeted-3.7.19-32.el6.noarch
ricci-0.16.2-9.el6.x86_64

How reproducible:
always

Steps to Reproduce:
# tps-rhts -d selinux-policy
# cd /mnt/testarea/tests/selinux-policy/Sanity/confined-admins-and-their-services/
# vim runtest.sh (remove all lines containing "_admin," string except for "ricci_admin,ricci" line)
# yum -y install ricci
# setenforce 0
# make run
# ausearch -m avc -ts recent

Actual results:
----
time->Wed Jul 21 09:36:01 2010
type=SYSCALL msg=audit(1279719361.493:45018): arch=c000003e syscall=59 success=yes exit=0 a0=7ffff7c7be8c a1=7ffff7c7af28 a2=18b8030 a3=10 items=0 ppid=30252 pid=30257 auid=501 uid=0 gid=0 euid=0 suid=0 fsuid=0 egid=0 sgid=0 fsgid=0 tty=pts3 ses=77 comm="ricci" exe="/bin/bash" subj=staff_u:system_r:initrc_t:s0 key=(null)
type=AVC msg=audit(1279719361.493:45018): avc:  denied  { transition } for  pid=30257 comm="env" path="/etc/rc.d/init.d/ricci" dev=dm-0 ino=524105 scontext=staff_u:confined_admin_r:confined_admin_t:s0 tcontext=staff_u:system_r:initrc_t:s0 tclass=process
----

Expected results:
no AVCs
Comment 1 RHEL Program Management 2010-07-21 13:57:58 UTC 
This issue has been proposed when we are only considering blocker
issues in the current Red Hat Enterprise Linux release.

** If you would still like this issue considered for the current
release, ask your support representative to file as a blocker on
your behalf. Otherwise ask that it be considered for the next
Red Hat Enterprise Linux release. **
Comment 2 Daniel Walsh 2010-07-21 14:09:23 UTC 
confined_admin_t is not a domain that we ship,  This looks like a bug in the test or policy that the test is shipping?
Comment 3 Milos Malik 2010-07-21 14:34:27 UTC 
confined_admin_t is an artificial domain which is in this specific case defined by following lines. The last line is modified in each run because we want to test different *_admin interface in each run.

----
policy_module(confined_admin,1.0.0)
userdom_admin_user_template(confined_admin)

require {
    role staff_r;
}
role confined_admin_r;
allow staff_r confined_admin_r;

domain_use_interactive_fds(confined_admin_t)
files_read_etc_files(confined_admin_t)
miscfiles_read_localization(confined_admin_t)
ricci_admin(confined_admin_t,confined_admin_r)
----

The purpose of the /CoreOS/selinux-policy/Sanity/confined-admins-and-their-services is to test all *_admin interfaces defined in selinux-policy package. There are 104 _admin interfaces defined in 3.7.19-32.el6. The test PASSed on 102 of them. The 2 remaining _admin interfaces which make the test FAIL are: vhostmd_admin and ricci_admin.
Comment 4 Daniel Walsh 2010-07-21 15:18:32 UTC 
Ok I think I see the problem.

Miroslav can you make the ricci_admin interface look like

	allow $1 ricci_t:process { ptrace signal_perms };
	ps_process_pattern($1, ricci_t)

	ricci_initrc_domtrans($1)
	domain_system_change_exemption($1)
	role_transition $2 ricci_initrc_exec_t system_r;
	allow $2 system_r;
Comment 5 Daniel Walsh 2010-07-21 15:19:58 UTC 
What problems are  you seeing with vhostmd?
Comment 6 Miroslav Grepl 2010-07-22 06:53:54 UTC 
(In reply to comment #4)
> Ok I think I see the problem.
> 
> Miroslav can you make the ricci_admin interface look like
> 
>  allow $1 ricci_t:process { ptrace signal_perms };
>  ps_process_pattern($1, ricci_t)
> 
>  ricci_initrc_domtrans($1)
>  domain_system_change_exemption($1)
>  role_transition $2 ricci_initrc_exec_t system_r;
>  allow $2 system_r;    

Yes,

'allow $2 system_r' statement was missing. 

Added to selinux-policy-3.7.19-33.el6.noarch.
Comment 8 Milos Malik 2010-07-22 07:37:26 UTC 
(In reply to comment #5)
> What problems are  you seeing with vhostmd?    

It has already been filed under bz#616783 which turned out not to be a selinux-policy issue.
Comment 9 releng-rhel@redhat.com 2010-11-10 21:35:26 UTC 
Red Hat Enterprise Linux 6.0 is now available and should resolve
the problem described in this bug report. This report is therefore being closed
with a resolution of CURRENTRELEASE. You may reopen this bug report if the
solution does not work for you.
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