Bug 671637

Summary: SELinux is preventing /sbin/unix_chkpwd "read" access on /etc/shadow.
Product: [Fedora] Fedora Reporter: maurizio <antillon.maurizio>
Component: selinux-policyAssignee: Miroslav Grepl <mgrepl>
Status: CLOSED DUPLICATE QA Contact: Fedora Extras Quality Assurance <extras-qa>
Severity: medium Docs Contact:
Priority: unspecified    
Version: 13CC: antillon.maurizio, dwalsh, mgrepl
Target Milestone: ---   
Target Release: ---   
Hardware: i386   
OS: Linux   
Whiteboard: setroubleshoot_trace_hash:7a13aba3473baa63936ccdd28c47f57727dce2e1924bae7f1bbca65bd6fe95ff
Fixed In Version: Doc Type: Bug Fix
Doc Text:
Story Points: ---
Clone Of: Environment:
Last Closed: 2011-01-24 11:57:04 UTC Type: ---
Regression: --- Mount Type: ---
Documentation: --- CRM:
Verified Versions: Category: ---
oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:

Description maurizio 2011-01-22 06:10:54 UTC
Summary:

SELinux is preventing /sbin/unix_chkpwd "read" access on /etc/shadow.

Detailed Description:

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

SELinux denied access requested by unix_chkpwd. It is not expected that this
access is required by unix_chkpwd 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
report.

Additional Information:

Source Context                sysadm_u:sysadm_r:oddjob_mkhomedir_t:s0-s0:c0.c102
                              3
Target Context                system_u:object_r:shadow_t:s0
Target Objects                /etc/shadow [ file ]
Source                        unix_chkpwd
Source Path                   /sbin/unix_chkpwd
Port                          <Unknown>
Host                          (removed)
Source RPM Packages           pam-1.1.1-4.fc13
Target RPM Packages           setup-2.8.17-1.fc13
Policy RPM                    selinux-policy-3.7.19-69.fc13
Selinux Enabled               True
Policy Type                   targeted
Enforcing Mode                Permissive
Plugin Name                   catchall
Host Name                     (removed)
Platform                      Linux (removed) 2.6.34.7-61.fc13.i686
                              #1 SMP Tue Oct 19 04:42:47 UTC 2010 i686 i686
Alert Count                   2
First Seen                    Thu 20 Jan 2011 10:53:34 PM MST
Last Seen                     Thu 20 Jan 2011 10:53:34 PM MST
Local ID                      da155b48-a009-471e-a68e-6a739825fbbd
Line Numbers                  

Raw Audit Messages            

node=(removed) type=AVC msg=audit(1295589214.239:26101): avc:  denied  { read } for  pid=2488 comm="unix_chkpwd" name="shadow" dev=dm-0 ino=61540 scontext=sysadm_u:sysadm_r:oddjob_mkhomedir_t:s0-s0:c0.c1023 tcontext=system_u:object_r:shadow_t:s0 tclass=file

node=(removed) type=AVC msg=audit(1295589214.239:26101): avc:  denied  { open } for  pid=2488 comm="unix_chkpwd" name="shadow" dev=dm-0 ino=61540 scontext=sysadm_u:sysadm_r:oddjob_mkhomedir_t:s0-s0:c0.c1023 tcontext=system_u:object_r:shadow_t:s0 tclass=file

node=(removed) type=SYSCALL msg=audit(1295589214.239:26101): arch=40000003 syscall=5 success=yes exit=3 a0=288a29 a1=80000 a2=1b6 a3=2889c5 items=0 ppid=2482 pid=2488 auid=500 uid=0 gid=493 euid=0 suid=0 fsuid=0 egid=493 sgid=493 fsgid=493 tty=(none) ses=1 comm="unix_chkpwd" exe="/sbin/unix_chkpwd" subj=sysadm_u:sysadm_r:oddjob_mkhomedir_t:s0-s0:c0.c1023 key=(null)



Hash String generated from  catchall,unix_chkpwd,oddjob_mkhomedir_t,shadow_t,file,read
audit2allow suggests:

#============= oddjob_mkhomedir_t ==============
allow oddjob_mkhomedir_t shadow_t:file { read open };

Comment 1 Miroslav Grepl 2011-01-24 11:57:04 UTC

*** This bug has been marked as a duplicate of bug 671607 ***