Bug 1000736 - munin zooming doesn't work with selinux
munin zooming doesn't work with selinux
Product: Red Hat Enterprise Linux 6
Classification: Red Hat
Component: selinux-policy (Show other bugs)
All Linux
unspecified Severity medium
: rc
: ---
Assigned To: Miroslav Grepl
BaseOS QE Security Team
Depends On:
  Show dependency treegraph
Reported: 2013-08-24 15:38 EDT by Peter Schiffer
Modified: 2013-10-30 05:46 EDT (History)
5 users (show)

See Also:
Fixed In Version:
Doc Type: Bug Fix
Doc Text:
Story Points: ---
Clone Of:
Last Closed: 2013-10-30 05:46:03 EDT
Type: Bug
Regression: ---
Mount Type: ---
Documentation: ---
Verified Versions:
Category: ---
oVirt Team: ---
RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: ---

Attachments (Terms of Use)
audit.log (4.70 KB, text/plain)
2013-08-24 15:38 EDT, Peter Schiffer
no flags Details

  None (edit)
Description Peter Schiffer 2013-08-24 15:38:16 EDT
Created attachment 789900 [details]

Description of problem:
zooming doesn't work when selinux is in enforcing mode

Version-Release number of selected component (if applicable):

Steps to Reproduce:
1. click on munin graph to zoom in

Actual results:
no graph image

Expected results:
graph image

Additional info:
it works with selinux in permissive mode
Comment 1 d. johnson 2013-08-24 17:22:34 EDT
Can you run this and post the results?

ls -Z /var/log/munin/

It looks like the context is not setup properly.  Have you already tried restorecon?
Comment 2 Peter Schiffer 2013-08-25 06:05:49 EDT
# ls -Z /var/log/munin/
-rw-r--r--. apache apache system_u:object_r:munin_log_t:s0 munin-cgi-graph.log
-rw-r--r--. munin  munin  system_u:object_r:munin_log_t:s0 munin-graph.log
-rw-r--r--. munin  munin  system_u:object_r:munin_log_t:s0 munin-html.log
-rw-r--r--. munin  munin  system_u:object_r:munin_log_t:s0 munin-limits.log
-rw-r--r--. munin  munin  system_u:object_r:munin_log_t:s0 munin-update.log

# restorecon -FRvv /var/log/munin/

I tried restorecon but it's still the same result. I also tried changing context of munin-cgi-graph.log file to httpd_log_t but that didn't help either.

This is error log from apache:

[Sun Aug 25 11:59:44 2013] [error] [client XXX] 2013/08/25 11:59:44 [FATAL] munin_readconfig_part(datafile) - missing file, referer: http://XXX/munin/static/dynazoom.html?cgiurl_graph=/munin-cgi/munin-cgi-graph&plugin_name=localhost/localhost/apache_processes&size_x=800&size_y=400&start_epoch=1377316503&stop_epoch=1377424503
[Sun Aug 25 11:59:44 2013] [error] [client XXX] Premature end of script headers: munin-cgi-graph, referer: http://XXX/munin/static/dynazoom.html?cgiurl_graph=/munin-cgi/munin-cgi-graph&plugin_name=localhost/localhost/apache_processes&size_x=800&size_y=400&start_epoch=1377316503&stop_epoch=1377424503
Comment 3 d. johnson 2013-08-26 16:48:45 EDT
Changing to selinux-policy for a policy update.
Comment 5 Miroslav Grepl 2013-08-27 08:02:52 EDT
Where is munin-cgi-graph located? And how it is labeled?

# ls -Z PATHTO/munin-cgi-graph
Comment 6 Peter Schiffer 2013-08-27 08:05:20 EDT
# ls -Z /var/www/cgi-bin
-rwxr-xr-x. root munin system_u:object_r:httpd_sys_script_exec_t:s0 munin-cgi-graph
-rwxr-xr-x. root munin system_u:object_r:httpd_sys_script_exec_t:s0 munin-cgi-html
Comment 7 Miroslav Grepl 2013-08-27 08:27:59 EDT
We need to back port changes from Fedora.

# chcon -t httpd_munin_script_exec_t /var/www/cgi-bin/munin-cgi*
Comment 8 Miroslav Grepl 2013-10-30 05:46:03 EDT
More fixes have been added during RHEL6.5 cycle related to munin and this bug should be fixed. If no, please re-open the bug and it will be addressed in RHEL6.6.

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