Bug 966321 - SELinux is preventing /usr/bin/perl from 'write' accesses on the file /var/www/html/bugzilla/data/db/bugs.
SELinux is preventing /usr/bin/perl from 'write' accesses on the file /var/ww...
Product: Fedora
Classification: Fedora
Component: selinux-policy (Show other bugs)
x86_64 Unspecified
unspecified Severity unspecified
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Assigned To: Miroslav Grepl
Fedora Extras Quality Assurance
: 966322 966323 (view as bug list)
Depends On:
  Show dependency treegraph
Reported: 2013-05-23 00:15 EDT by Moez Roy
Modified: 2013-05-28 05:07 EDT (History)
4 users (show)

See Also:
Fixed In Version:
Doc Type: Bug Fix
Doc Text:
Story Points: ---
Clone Of:
Last Closed: 2013-05-28 05:07:19 EDT
Type: ---
Regression: ---
Mount Type: ---
Documentation: ---
Verified Versions:
Category: ---
oVirt Team: ---
RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: ---

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Description Moez Roy 2013-05-23 00:15:42 EDT
Description of problem:
SELinux is preventing /usr/bin/perl from 'write' accesses on the file /var/www/html/bugzilla/data/db/bugs.

*****  Plugin httpd_write_content (92.2 confidence) suggests  ****************

If you want to allow perl to have write access on the bugs file
Then you need to change the label on '/var/www/html/bugzilla/data/db/bugs'
# semanage fcontext -a -t httpd_sys_rw_content_t '/var/www/html/bugzilla/data/db/bugs'
# restorecon -v '/var/www/html/bugzilla/data/db/bugs'

*****  Plugin catchall_boolean (7.83 confidence) suggests  *******************

If you want to unify HTTPD handling of all content files.
Then you must tell SELinux about this by enabling the 'httpd_unified' boolean.
You can read 'httpd_selinux' man page for more details.
setsebool -P httpd_unified 1

*****  Plugin catchall (1.41 confidence) suggests  ***************************

If you believe that perl should be allowed write access on the bugs file by default.
Then you should report this as a bug.
You can generate a local policy module to allow this access.
allow this access for now by executing:
# grep buglist.cgi /var/log/audit/audit.log | audit2allow -M mypol
# semodule -i mypol.pp

Additional Information:
Source Context                system_u:system_r:httpd_t:s0
Target Context                unconfined_u:object_r:httpd_sys_content_t:s0
Target Objects                /var/www/html/bugzilla/data/db/bugs [ file ]
Source                        buglist.cgi
Source Path                   /usr/bin/perl
Port                          <Unknown>
Host                          (removed)
Source RPM Packages           perl-5.16.3-244.fc18.x86_64
Target RPM Packages           
Policy RPM                    selinux-policy-3.11.1-96.fc18.noarch
Selinux Enabled               True
Policy Type                   targeted
Enforcing Mode                Permissive
Host Name                     (removed)
Platform                      Linux (removed) 3.9.2-200.fc18.x86_64 #1 SMP Mon
                              May 13 13:59:47 UTC 2013 x86_64 x86_64
Alert Count                   1
First Seen                    2013-05-22 21:14:06 PDT
Last Seen                     2013-05-22 21:14:06 PDT
Local ID                      0a97bcb3-933e-431b-b7bc-67e6da616c38

Raw Audit Messages
type=AVC msg=audit(1369282446.442:379): avc:  denied  { write } for  pid=2267 comm="buglist.cgi" name="bugs" dev="sda2" ino=1575915 scontext=system_u:system_r:httpd_t:s0 tcontext=unconfined_u:object_r:httpd_sys_content_t:s0 tclass=file

type=SYSCALL msg=audit(1369282446.442:379): arch=x86_64 syscall=open success=yes exit=ESRCH a0=445c040 a1=80042 a2=1a4 a3=7fff420d71d0 items=0 ppid=2164 pid=2267 auid=4294967295 uid=48 gid=48 euid=48 suid=48 fsuid=48 egid=48 sgid=48 fsgid=48 ses=4294967295 tty=(none) comm=buglist.cgi exe=/usr/bin/perl subj=system_u:system_r:httpd_t:s0 key=(null)

Hash: buglist.cgi,httpd_t,httpd_sys_content_t,file,write


#============= httpd_t ==============
#!!!! This avc can be allowed using the boolean 'httpd_unified'

allow httpd_t httpd_sys_content_t:file write;

audit2allow -R
require {
	type httpd_t;

#============= httpd_t ==============

Additional info:
hashmarkername: setroubleshoot
kernel:         3.9.2-200.fc18.x86_64
type:           libreport
Comment 1 Miroslav Grepl 2013-05-23 04:18:30 EDT
The alert tells you what to do. 

Either you can change labeling to httpd_sys_rw_content_t or you can turn on the httpd_unified boolean.
Comment 2 Miroslav Grepl 2013-05-23 04:19:52 EDT
What does

# rpm -qf /var/www/html/bugzilla/data/db
Comment 3 Miroslav Grepl 2013-05-23 04:20:04 EDT
*** Bug 966322 has been marked as a duplicate of this bug. ***
Comment 4 Miroslav Grepl 2013-05-23 04:20:24 EDT
*** Bug 966323 has been marked as a duplicate of this bug. ***
Comment 5 Moez Roy 2013-05-23 06:37:28 EDT
(In reply to Miroslav Grepl from comment #2)
> What does
> # rpm -qf /var/www/html/bugzilla/data/db

This was not installed using rpm/yum because it puts the data any lots of places, and it is not up to date.

I changed the labeling to httpd_sys_rw_content_t but it did not work.


1. extracted to home dir.
2. ran ./checksetup.pl as root (it was not working as regular user)
3. renamed folder bugzilla-4.4 to bugzilla.
4. cut and paste bugzilla folder to /var/www/html
5. in /etc/httpd/conf.d make a file called bugzilla.conf with the following code: <Directory /var/www/html/bugzilla>
AddHandler cgi-script .cgi
Options +ExecCGI
DirectoryIndex index.cgi index.html
AllowOverride Limit FileInfo Indexes Options
6. sudo service httpd start
7. Go here http://localhost/bugzilla
Comment 6 Miroslav Grepl 2013-05-23 07:58:26 EDT
What was wrong with httpd_sys_rw_content_t?
Comment 7 Moez Roy 2013-05-25 11:20:58 EDT
I did this:(In reply to Miroslav Grepl from comment #6)
> What was wrong with httpd_sys_rw_content_t?

I did:

sudo semanage fcontext -a -t httpd_sys_rw_content_t '/var/www/html/bugzilla/data/db/bugs'

sudo restorecon -v '/var/www/html/bugzilla/data/db/bugs'

I also checked the auto relabel on reboot box inside the system-config-selinux gui, and did a reboot.

But I was getting 500 internal server error and/or 403 forbidden.

When I turned on httpd_unified boolean then it started to work in enforcing mode.
Comment 8 Miroslav Grepl 2013-05-28 05:07:19 EDT
Probably httpd_sys_rw_content_t is also needed for /var/www/html/bugzilla/data directory.

You can test it using

# chcon -R -t httpd_sys_rw_content_t /var/www/html/bugzilla/data

Yes, it can be allowed by the boolean.

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