Bug 1297345 - SELinux is preventing /usr/sbin/unix_chkpwd from 'read' accesses on the lnk_file /usr/lib64/libcrypt.so.1.
SELinux is preventing /usr/sbin/unix_chkpwd from 'read' accesses on the lnk_f...
Status: CLOSED DUPLICATE of bug 1297340
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
Depends On:
  Show dependency treegraph
Reported: 2016-01-11 04:51 EST by edo
Modified: 2016-01-11 08:41 EST (History)
5 users (show)

See Also:
Fixed In Version:
Doc Type: Bug Fix
Doc Text:
Story Points: ---
Clone Of:
Last Closed: 2016-01-11 08:41:23 EST
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Regression: ---
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Documentation: ---
Verified Versions:
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oVirt Team: ---
RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: ---

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Description edo 2016-01-11 04:51:38 EST
Description of problem:
SELinux is preventing /usr/sbin/unix_chkpwd from 'read' accesses on the lnk_file /usr/lib64/libcrypt.so.1.

*****  Plugin restorecon (94.8 confidence) suggests   ************************

If you want to fix the label. 
/usr/lib64/libcrypt.so.1 default label should be lib_t.
Then you can run restorecon.
# /sbin/restorecon -v /usr/lib64/libcrypt.so.1

*****  Plugin catchall_labels (5.21 confidence) suggests   *******************

If you want to allow unix_chkpwd to have read access on the libcrypt.so.1 lnk_file
Then you need to change the label on /usr/lib64/libcrypt.so.1
# semanage fcontext -a -t FILE_TYPE '/usr/lib64/libcrypt.so.1'
where FILE_TYPE is one of the following: admin_home_t, bin_t, boot_t, cert_t, device_t, devlog_t, etc_runtime_t, etc_t, file_context_t, fonts_cache_t, fonts_t, ld_so_t, lib_t, locale_t, man_cache_t, man_t, net_conf_t, proc_t, root_t, rpm_script_tmp_t, security_t, selinux_config_t, shell_exec_t, src_t, sssd_var_lib_t, system_conf_t, system_db_t, textrel_shlib_t, tmp_t, usr_t, var_run_t, var_t. 
Then execute: 
restorecon -v '/usr/lib64/libcrypt.so.1'

*****  Plugin catchall (1.44 confidence) suggests   **************************

If you believe that unix_chkpwd should be allowed read access on the libcrypt.so.1 lnk_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 unix_chkpwd /var/log/audit/audit.log | audit2allow -M mypol
# semodule -i mypol.pp

Additional Information:
Source Context                system_u:system_r:chkpwd_t:s0-s0:c0.c1023
Target Context                system_u:object_r:unlabeled_t:s0
Target Objects                /usr/lib64/libcrypt.so.1 [ lnk_file ]
Source                        unix_chkpwd
Source Path                   /usr/sbin/unix_chkpwd
Port                          <Unknown>
Host                          (removed)
Source RPM Packages           pam-1.2.1-2.fc23.x86_64
Target RPM Packages           glibc-2.22-7.fc23.x86_64
Policy RPM                    selinux-policy-3.13.1-158.fc23.noarch
Selinux Enabled               True
Policy Type                   targeted
Enforcing Mode                Permissive
Host Name                     (removed)
Platform                      Linux (removed) 4.3.3-300.fc23.x86_64 #1 SMP Tue
                              Jan 5 23:31:01 UTC 2016 x86_64 x86_64
Alert Count                   9
First Seen                    2016-01-10 13:25:07 CET
Last Seen                     2016-01-11 09:21:15 CET
Local ID                      6847bd06-d285-477a-8ed2-ae3ba5c37be0

Raw Audit Messages
type=AVC msg=audit(1452500475.730:538): avc:  denied  { read } for  pid=2143 comm="unix_chkpwd" name="libcrypt.so.1" dev="dm-1" ino=3193829 scontext=system_u:system_r:chkpwd_t:s0-s0:c0.c1023 tcontext=system_u:object_r:unlabeled_t:s0 tclass=lnk_file permissive=1

type=SYSCALL msg=audit(1452500475.730:538): arch=x86_64 syscall=open success=yes exit=ESRCH a0=7fca2afa6640 a1=80000 a2=7fca2afa9148 a3=7fca2af9ee48 items=0 ppid=2132 pid=2143 auid=4294967295 uid=0 gid=0 euid=0 suid=0 fsuid=0 egid=0 sgid=0 fsgid=0 tty=(none) ses=4294967295 comm=unix_chkpwd exe=/usr/sbin/unix_chkpwd subj=system_u:system_r:chkpwd_t:s0-s0:c0.c1023 key=(null)

Hash: unix_chkpwd,chkpwd_t,unlabeled_t,lnk_file,read

Version-Release number of selected component:

Additional info:
reporter:       libreport-2.6.3
hashmarkername: setroubleshoot
kernel:         4.3.3-300.fc23.x86_64
type:           libreport
Comment 1 Daniel Walsh 2016-01-11 08:41:23 EST

*** This bug has been marked as a duplicate of bug 1297340 ***

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