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Bug 966387 - wrong permissions for openvpn
Summary: wrong permissions for openvpn
Keywords:
Status: CLOSED ERRATA
Alias: None
Product: Red Hat Enterprise Linux 6
Classification: Red Hat
Component: selinux-policy
Version: 6.4
Hardware: All
OS: Linux
unspecified
high
Target Milestone: rc
: ---
Assignee: Miroslav Grepl
QA Contact: Milos Malik
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2013-05-23 08:26 UTC by Phil
Modified: 2013-11-21 10:29 UTC (History)
4 users (show)

Fixed In Version:
Doc Type: Bug Fix
Doc Text:
Clone Of:
: 966929 (view as bug list)
Environment:
Last Closed: 2013-11-21 10:29:09 UTC
Target Upstream Version:
Embargoed:

Attachments (Terms of Use)


Links
System ID Private Priority Status Summary Last Updated
Red Hat Product Errata RHBA-2013:1598 0 normal SHIPPED_LIVE selinux-policy bug fix and enhancement update 2013-11-20 21:39:24 UTC

Description Phil 2013-05-23 08:26:01 UTC 
Description of problem:

openvpn fails to start since it cannot read/write to /var/log/openvpn.


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

openvpn-2.3.1-1.el6.x86_64
selinux-policy-targeted-3.7.19-195.el6_4.3.noarch


How reproducible:

always.


Steps to Reproduce:
1. update to openvpn 2.3.1
2. try to start it
3. profit.


Actual results:

openvpn is unable to read/write /var/log/openvpn and won't start.


Expected results:

openvpn is able to read/write /var/log/openvpn and starts.


Additional info:
* audit.log:
type=AVC msg=audit(1369295332.800:771735): avc:  denied  { read write } for  pid=27856 comm="openvpn" name="openvpn" dev=dm-3 ino=263685 scontext=system_u:system_r:openvpn_t:s0 tcontext=system_u:object_r:openvpn_var_log_t:s0 tclass=dir

* fcontext:
/var/log/openvpn.* all files system_u:object_r:openvpn_var_log_t:s0 

* sesearch -A -s openvpn_t | grep openvpn_var_log_t:
allow openvpn_t openvpn_var_log_t : file { ioctl read write create getattr setattr lock append unlink link rename open } ;
--> class "dir" is missing

anyways: openvpn_t is allowed to read/write to var_log_t.
Comment 2 Milos Malik 2013-05-23 13:55:23 UTC 
Following AVCs appeared in permissive mode:
----
time->Thu May 23 15:49:27 2013
type=PATH msg=audit(1369316967.990:995): item=0 name="/var/log/openvpn" inode=41295 dev=08:03 mode=040755 ouid=0 ogid=0 rdev=00:00 obj=unconfined_u:object_r:openvpn_var_log_t:s0
type=CWD msg=audit(1369316967.990:995):  cwd="/etc/openvpn"
type=SYSCALL msg=audit(1369316967.990:995): arch=40000003 syscall=33 success=yes exit=0 a0=90fd8f8 a1=7 a2=90fddf4 a3=90fd8f8 items=1 ppid=32672 pid=32681 auid=0 uid=0 gid=0 euid=0 suid=0 fsuid=0 egid=0 sgid=0 fsgid=0 tty=pts0 ses=1 comm="openvpn" exe="/usr/sbin/openvpn" subj=unconfined_u:system_r:openvpn_t:s0 key=(null)
type=AVC msg=audit(1369316967.990:995): avc:  denied  { read } for  pid=32681 comm="openvpn" name="openvpn" dev=sda3 ino=41295 scontext=unconfined_u:system_r:openvpn_t:s0 tcontext=unconfined_u:object_r:openvpn_var_log_t:s0 tclass=dir
----
time->Thu May 23 15:49:27 2013
type=PATH msg=audit(1369316967.983:994): item=1 name="/var/log/openvpn/log" inode=38094 dev=08:03 mode=0100600 ouid=0 ogid=0 rdev=00:00 obj=unconfined_u:object_r:openvpn_var_log_t:s0
type=PATH msg=audit(1369316967.983:994): item=0 name="/var/log/openvpn/" inode=41295 dev=08:03 mode=040755 ouid=0 ogid=0 rdev=00:00 obj=unconfined_u:object_r:openvpn_var_log_t:s0
type=CWD msg=audit(1369316967.983:994):  cwd="/etc/openvpn"
type=SYSCALL msg=audit(1369316967.983:994): arch=40000003 syscall=5 success=yes exit=4 a0=90fddc4 a1=241 a2=180 a3=90fddc4 items=2 ppid=32672 pid=32681 auid=0 uid=0 gid=0 euid=0 suid=0 fsuid=0 egid=0 sgid=0 fsgid=0 tty=pts0 ses=1 comm="openvpn" exe="/usr/sbin/openvpn" subj=unconfined_u:system_r:openvpn_t:s0 key=(null)
type=AVC msg=audit(1369316967.983:994): avc:  denied  { add_name } for  pid=32681 comm="openvpn" name="log" scontext=unconfined_u:system_r:openvpn_t:s0 tcontext=unconfined_u:object_r:openvpn_var_log_t:s0 tclass=dir
type=AVC msg=audit(1369316967.983:994): avc:  denied  { write } for  pid=32681 comm="openvpn" name="openvpn" dev=sda3 ino=41295 scontext=unconfined_u:system_r:openvpn_t:s0 tcontext=unconfined_u:object_r:openvpn_var_log_t:s0 tclass=dir
----

Configuration file contained among others following lines at the time:
log /var/log/openvpn/log
status /var/log/openvpn/status
Comment 3 Miroslav Grepl 2013-05-24 11:22:13 UTC 
Back ported from Fedora.
Comment 10 errata-xmlrpc 2013-11-21 10:29:09 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-2013-1598.html
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