Bug 673702 - SELinux is preventing /bin/ping access to a leaked /usr/local/nagios/var/spool/checkresults/checka7zXzh file descriptor.
Summary: SELinux is preventing /bin/ping access to a leaked /usr/local/nagios/var/spoo...
Keywords:
Status: CLOSED NOTABUG
Alias: None
Product: Fedora
Classification: Fedora
Component: selinux-policy
Version: 13
Hardware: i386
OS: Linux
unspecified
medium
Target Milestone: ---
Assignee: Miroslav Grepl
QA Contact: Fedora Extras Quality Assurance
URL:
Whiteboard: setroubleshoot_trace_hash:922587bcacf...
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2011-01-29 23:12 UTC by kpacmail
Modified: 2011-01-31 10:49 UTC (History)
2 users (show)

Fixed In Version:
Doc Type: Bug Fix
Doc Text:
Clone Of:
Environment:
Last Closed: 2011-01-31 10:49:38 UTC
Type: ---


Attachments (Terms of Use)

Description kpacmail 2011-01-29 23:12:11 UTC
Summary:

SELinux is preventing /bin/ping access to a leaked
/usr/local/nagios/var/spool/checkresults/checka7zXzh file descriptor.

Detailed Description:

[SELinux is in permissive mode. This access was not denied.]

SELinux denied access requested by the ping command. It looks like this is
either a leaked descriptor or ping output was redirected to a file it is not
allowed to access. Leaks usually can be ignored since SELinux is just closing
the leak and reporting the error. The application does not use the descriptor,
so it will run properly. If this is a redirection, you will not get output in
the /usr/local/nagios/var/spool/checkresults/checka7zXzh. You should generate a
bugzilla on selinux-policy, and it will get routed to the appropriate package.
You can safely ignore this avc.

Allowing Access:

You can generate a local policy module to allow this access - see FAQ
(http://docs.fedoraproject.org/selinux-faq-fc5/#id2961385)

Additional Information:

Source Context                unconfined_u:system_r:ping_t:s0
Target Context                unconfined_u:object_r:usr_t:s0
Target Objects                /usr/local/nagios/var/spool/checkresults/checka7zX
                              zh [ file ]
Source                        ping
Source Path                   /bin/ping
Port                          <Unknown>
Host                          (removed)
Source RPM Packages           iputils-20071127-12.fc13
Target RPM Packages           
Policy RPM                    selinux-policy-3.7.19-57.fc13
Selinux Enabled               True
Policy Type                   targeted
Enforcing Mode                Permissive
Plugin Name                   leaks
Host Name                     (removed)
Platform                      Linux localhost.localdomain 2.6.34.7-56.fc13.i686
                              #1 SMP Wed Sep 15 03:33:58 UTC 2010 i686 i686
Alert Count                   5
First Seen                    Sat 29 Jan 2011 22:42:03 GMT
Last Seen                     Sat 29 Jan 2011 23:09:31 GMT
Local ID                      e1e74871-78fd-4be5-8ebe-d01f046471ca
Line Numbers                  

Raw Audit Messages            

node=localhost.localdomain type=AVC msg=audit(1296342571.335:117): avc:  denied  { read write } for  pid=29340 comm="ping" path="/usr/local/nagios/var/spool/checkresults/checka7zXzh" dev=dm-0 ino=541599 scontext=unconfined_u:system_r:ping_t:s0 tcontext=unconfined_u:object_r:usr_t:s0 tclass=file

node=localhost.localdomain type=SYSCALL msg=audit(1296342571.335:117): arch=40000003 syscall=11 success=yes exit=0 a0=8480a00 a1=8480a30 a2=bfc13dd8 a3=8480a1b items=0 ppid=29339 pid=29340 auid=500 uid=502 gid=502 euid=0 suid=0 fsuid=0 egid=502 sgid=502 fsgid=502 tty=(none) ses=1 comm="ping" exe="/bin/ping" subj=unconfined_u:system_r:ping_t:s0 key=(null)



Hash String generated from  leaks,ping,ping_t,usr_t,file,read,write
audit2allow suggests:

#============= ping_t ==============
allow ping_t usr_t:file { read write };

Comment 1 Miroslav Grepl 2011-01-31 10:49:38 UTC
This is a leak file descriptor which we dontaudit in the policy. But you use non-standard location.

Did you setup

check_result_path=/var/log/nagios/spool/checkresults

to

/usr/local/nagios/var/spool/checkresults

It looks so. So you can fix the location, you can dontaudit it using

# grep ping /var/log/audit/audit.log | audit2allow mynagios
# semodule -i mynagios.pp

or you can execute

# semanage fcontext -a -e /var/log/nagios /usr/local/nagios/var/spool/checkresults

# restorecon -R -v /usr/local/nagios/var/spool/checkresults

Which will label your location as nagios_log_t.


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