Bug 821004

Summary:	Cannot create crontabs for users under MLS
Product:	Red Hat Enterprise Linux 6	Reporter:	Josh <jokajak>
Component:	selinux-policy	Assignee:	Miroslav Grepl <mgrepl>
Status:	CLOSED ERRATA	QA Contact:	Milos Malik <mmalik>
Severity:	medium	Docs Contact:
Priority:	high
Version:	6.2	CC:	dwalsh, mmalik
Target Milestone:	rc
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:	selinux-policy-3.7.19-151.el6	Doc Type:	Bug Fix
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2012-06-20 12:34:30 UTC	Type:	Bug
Regression:	---	Mount Type:	---
Documentation:	---	CRM:
Verified Versions:		Category:	---
oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:

Description Josh 2012-05-11 14:32:33 UTC

Description of problem:
When logged in as root on a MLS system, cannot create a cron job for another user.

Version-Release number of selected component (if applicable):
3.7.19-126.el6_2.10.noarch

How reproducible:
always

Steps to Reproduce:
1. login as root
2. crontab -e -u 

  
Actual results:
Security class "passwd" is not defined in the SELinux policy.
Access denied by SELinux, must be privileged to use -u

Expected results:
Editor opens

Additional info:
Works if I switch to that user then execute crontab -e

Comment 2 Milos Malik 2012-05-12 15:33:59 UTC

# rpm -qa selinux-policy\*
selinux-policy-doc-3.7.19-150.el6.noarch
selinux-policy-minimum-3.7.19-150.el6.noarch
selinux-policy-targeted-3.7.19-150.el6.noarch
selinux-policy-mls-3.7.19-150.el6.noarch
selinux-policy-3.7.19-150.el6.noarch
# sestatus 
SELinux status:                 enabled
SELinuxfs mount:                /selinux
Current mode:                   enforcing
Mode from config file:          enforcing
Policy version:                 24
Policy from config file:        mls
# id -Z
root:sysadm_r:sysadm_t:s0-s15:c0.c1023
# useradd theone
# passwd theone
Changing password for user theone.
New password: 
Retype new password: 
passwd: all authentication tokens updated successfully.
# crontab -e -u theone
Security class "passwd" is not defined in the SELinux policy.
Access denied by SELinux, must be privileged to use -u
# crontab -l -u theone
Security class "passwd" is not defined in the SELinux policy.
Access denied by SELinux, must be privileged to use -u
# crontab -r -u theone
Security class "passwd" is not defined in the SELinux policy.
Access denied by SELinux, must be privileged to use -u
# 

I'm not sure if it's bug or feature.

Comment 3 Miroslav Grepl 2012-05-13 21:19:37 UTC

The problem is we have 

optional_policy(`
    cron_role(sysadm_r, sysadm_t)
')

ifndef(`distro_redhat',`
optional_policy(`
    cron_admin_role(sysadm_r, sysadm_t)
')

---

which causes this issue. We have in Fedora

optional_policy(`
        cron_admin_role(sysadm_r, sysadm_t)
')

Comment 4 Miroslav Grepl 2012-05-15 08:36:33 UTC

Fixed in selinux-policy-3.7.19-151.el6

Comment 8 errata-xmlrpc 2012-06-20 12:34:30 UTC

Since the problem described in this bug report should be
resolved in a recent advisory, it has been closed with a
resolution of ERRATA.

For information on the advisory, and where to find the updated
files, follow the link below.

If the solution does not work for you, open a new bug report.

http://rhn.redhat.com/errata/RHBA-2012-0780.html