Bug 593510 - SELinux is preventing /usr/sbin/openct-control "dac_override" access .
Summary: SELinux is preventing /usr/sbin/openct-control "dac_override" access .
Alias: None
Product: Fedora
Classification: Fedora
Component: selinux-policy
Version: 12
Hardware: i386
OS: Linux
Target Milestone: ---
Assignee: Daniel Walsh
QA Contact: Fedora Extras Quality Assurance
Whiteboard: setroubleshoot_trace_hash:cbe80c063a0...
Depends On:
TreeView+ depends on / blocked
Reported: 2010-05-19 01:48 UTC by jhvillegas2
Modified: 2010-09-13 01:52 UTC (History)
8 users (show)

Fixed In Version:
Doc Type: Bug Fix
Doc Text:
Clone Of:
Last Closed: 2010-08-19 11:28:01 UTC
Type: ---

Attachments (Terms of Use)

Description jhvillegas2 2010-05-19 01:48:13 UTC

SELinux is preventing /usr/sbin/openct-control "dac_override" access .

Detailed Description:

SELinux denied access requested by openct-control. It is not expected that this
access is required by openct-control and this access may signal an intrusion
attempt. It is also possible that the specific version or configuration of the
application is causing it to require additional access.

Allowing Access:

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

Additional Information:

Source Context                system_u:system_r:openct_t:s0
Target Context                system_u:system_r:openct_t:s0
Target Objects                None [ capability ]
Source                        openct-control
Source Path                   /usr/sbin/openct-control
Port                          <Unknown>
Host                          (removed)
Source RPM Packages           openct-0.6.18-1.fc12
Target RPM Packages           
Policy RPM                    selinux-policy-3.6.32-113.fc12
Selinux Enabled               True
Policy Type                   targeted
Enforcing Mode                Enforcing
Plugin Name                   catchall
Host Name                     (removed)
Platform                      Linux (removed)
                     #1 SMP Mon Apr 5 16:32:08
                              EDT 2010 i686 i686
Alert Count                   12
First Seen                    Sat 17 Apr 2010 07:30:27 AM MDT
Last Seen                     Mon 17 May 2010 05:40:51 AM MDT
Local ID                      0e32142f-a8c7-45ff-b3b4-98a5a885880c
Line Numbers                  

Raw Audit Messages            

node=(removed) type=AVC msg=audit(1274096451.948:7): avc:  denied  { dac_override } for  pid=1996 comm="openct-control" capability=1  scontext=system_u:system_r:openct_t:s0 tcontext=system_u:system_r:openct_t:s0 tclass=capability

node=(removed) type=SYSCALL msg=audit(1274096451.948:7): arch=40000003 syscall=5 success=no exit=-13 a0=bf94b28b a1=2 a2=1 a3=bf94b28b items=0 ppid=1992 pid=1996 auid=4294967295 uid=0 gid=0 euid=0 suid=0 fsuid=0 egid=0 sgid=0 fsgid=0 tty=(none) ses=4294967295 comm="openct-control" exe="/usr/sbin/openct-control" subj=system_u:system_r:openct_t:s0 key=(null)

Hash String generated from  catchall,openct-control,openct_t,openct_t,capability,dac_override
audit2allow suggests:

#============= openct_t ==============
allow openct_t self:capability dac_override;

Comment 1 Daniel Walsh 2010-05-19 12:48:18 UTC
Could you turn on full auditing to see if we can figure out whether this domain actually needs this access or there is a file with the wrong permissions on your system.

dac_override means that a root process is trying to access a file/dir which root does not over permission to look at based on the permissions.

auditctl -w /etc/shadow -p w 

Attempt to get the AVC to happen.

ausearch -m avc -ts recent

Should gather the AVC data including the path.

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