Bug 826528
| Summary: | Selinux denies cobbler to write tftp config | ||
|---|---|---|---|
| Product: | Red Hat Enterprise Linux 6 | Reporter: | Pablo Iranzo Gómez <pablo.iranzo> |
| Component: | selinux-policy | Assignee: | Miroslav Grepl <mgrepl> |
| Status: | CLOSED DUPLICATE | QA Contact: | BaseOS QE Security Team <qe-baseos-security> |
| Severity: | unspecified | Docs Contact: | |
| Priority: | unspecified | ||
| Version: | 6.3 | CC: | dwalsh, mmalik |
| Target Milestone: | rc | ||
| Target Release: | --- | ||
| Hardware: | Unspecified | ||
| OS: | Unspecified | ||
| Whiteboard: | |||
| Fixed In Version: | Doc Type: | Bug Fix | |
| Doc Text: | Story Points: | --- | |
| Clone Of: | Environment: | ||
| Last Closed: | 2012-10-15 15:03:38 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: | |||
This is a problem with the latest cobbler. We should need /etc/xinetd\.d/tftp -- gen_context(system_u:object_r:tftpd_etc_t,s0 in the policy. But we can say to create this file with this label only on Fedora16+. We have another transition for /etc in the cobbler policy on RHEL6.3. So we would get duplicate transitions. I think we could add labeling and cobbler sync could run restorecon when /etc/xinetd\.d/tftp is created. I hope the cobbler sync runs as unconfined in this phase. This request was not resolved in time for the current release. Red Hat invites you to ask your support representative to propose this request, if still desired, for consideration in the next release of Red Hat Enterprise Linux. This request was erroneously removed from consideration in Red Hat Enterprise Linux 6.4, which is currently under development. This request will be evaluated for inclusion in Red Hat Enterprise Linux 6.4. *** This bug has been marked as a duplicate of bug 816309 *** |
Description of problem: SELinux denies cobbler writting tftp Version-Release number of selected component (if applicable): [root@Merak ~]# rpm -q cobbler cobbler-2.2.2-1.el6.noarch [root@Merak ~]# rpm -q selinux-policy selinux-policy-3.7.19-145.el6.noarch [root@Merak ~]# rpm -qa|grep -i target selinux-policy-targeted-3.7.19-145.el6.noarch How reproducible: Execute cobbler sync Steps to Reproduce: 1. cobbler sync 2. 3. Actual results: AUDIT.LOG: type=AVC msg=audit(1338380856.563:62132): avc: denied { write } for pid=3098 comm="cobblerd" name="tftp" dev=dm-0 ino=10881600 scontext=system_u:system_r:cobblerd_t:s0 tcontext=system_u:object_r:etc_t:s0 tclass=file type=SYSCALL msg=audit(1338380856.563:62132): arch=c000003e syscall=2 success=no exit=-13 a0=7fd2280f2d30 a1=242 a2=1b6 a3=0 items=0 ppid=1 pid=3098 auid=4294967295 uid=0 gid=0 euid=0 suid=0 fsuid=0 egid=0 sgid=0 fsgid=0 tty=(none) ses=4294967295 comm="cobblerd" exe="/usr/bin/python" subj=system_u:system_r:cobblerd_t:s0 key=(null) COBBLER ON CONSOLE: rendering DHCP files generating /etc/dhcp/dhcpd.conf rendering TFTPD files generating /etc/xinetd.d/tftp Exception occured: <type 'exceptions.IOError'> Exception value: [Errno 13] Permission denied: '/etc/xinetd.d/tftp' Exception Info: File "/usr/lib/python2.6/site-packages/cobbler/remote.py", line 89, in run rc = self._run(self) File "/usr/lib/python2.6/site-packages/cobbler/remote.py", line 184, in runner return self.remote.api.sync(self.options.get("verbose",False),logger=self.logger) File "/usr/lib/python2.6/site-packages/cobbler/api.py", line 701, in sync return sync.run() File "/usr/lib/python2.6/site-packages/cobbler/action_sync.py", line 142, in run self.tftpd.write_tftpd_files() File "/usr/lib/python2.6/site-packages/cobbler/modules/manage_in_tftpd.py", line 131, in write_tftpd_files self.templar.render(template_data, metadata, self.settings_file, None) File "/usr/lib/python2.6/site-packages/cobbler/templar.py", line 167, in render fd = open(out_path, "w+") !!! TASK FAILED !!! Expected results: cobbler should be able to generate that configuration file and output something similar to: Iniciando dhcpd: [ OK ] received on stderr: running shell triggers from /var/lib/cobbler/triggers/sync/post/* running python triggers from /var/lib/cobbler/triggers/change/* running python trigger cobbler.modules.scm_track running shell triggers from /var/lib/cobbler/triggers/change/* *** TASK COMPLETE *** Additional info: