Bug 867923 - SELinux is preventing /usr/bin/chsh from 'write' accesses on the file /etc/.pwd.lock.
SELinux is preventing /usr/bin/chsh from 'write' accesses on the file /etc/.p...
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: 2012-10-18 11:08 EDT by Xaver Hellauer
Modified: 2012-12-20 11:15 EST (History)
4 users (show)

See Also:
Fixed In Version:
Doc Type: Bug Fix
Doc Text:
Story Points: ---
Clone Of:
Last Closed: 2012-12-20 11:15:18 EST
Type: ---
Regression: ---
Mount Type: ---
Documentation: ---
Verified Versions:
Category: ---
oVirt Team: ---
RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: ---

Attachments (Terms of Use)
File: type (9 bytes, text/plain)
2012-10-18 11:08 EDT, Xaver Hellauer
no flags Details
File: hashmarkername (14 bytes, text/plain)
2012-10-18 11:08 EDT, Xaver Hellauer
no flags Details

  None (edit)
Description Xaver Hellauer 2012-10-18 11:08:31 EDT
Description of problem:
Did execute
chsh -s /bin/zsh

Additional info:
libreport version: 2.0.16
kernel:         3.6.2-2.fc18.x86_64

:SELinux is preventing /usr/bin/chsh from 'write' accesses on the file /etc/.pwd.lock.
:*****  Plugin catchall (100. confidence) suggests  ***************************
:If sie denken, dass es chsh standardmässig erlaubt sein sollte, write Zugriff auf .pwd.lock file zu erhalten.
:Then sie sollten dies als Fehler melden.
:Um diesen Zugriff zu erlauben, können Sie ein lokales Richtlinien-Modul erstellen.
:zugriff jetzt erlauben, indem Sie die nachfolgenden Befehle ausführen:
:# grep chsh /var/log/audit/audit.log | audit2allow -M mypol
:# semodule -i mypol.pp
:Additional Information:
:Source Context                unconfined_u:unconfined_r:chfn_t:s0-s0:c0.c1023
:Target Context                system_u:object_r:shadow_t:s0
:Target Objects                /etc/.pwd.lock [ file ]
:Source                        chsh
:Source Path                   /usr/bin/chsh
:Port                          <Unbekannt>
:Host                          (removed)
:Source RPM Packages           util-linux-2.22.1-1.fc18.x86_64
:Target RPM Packages           
:Policy RPM                    selinux-policy-3.11.1-36.fc18.noarch
:Selinux Enabled               True
:Policy Type                   targeted
:Enforcing Mode                Enforcing
:Host Name                     (removed)
:Platform                      Linux (removed) 3.6.2-2.fc18.x86_64 #1 SMP Wed Oct
:                              17 05:56:07 UTC 2012 x86_64 x86_64
:Alert Count                   1
:First Seen                    2012-10-18 16:57:20 CEST
:Last Seen                     2012-10-18 16:57:20 CEST
:Local ID                      c5f7cbac-b5ed-41b3-a440-9ffa8175b7b8
:Raw Audit Messages
:type=AVC msg=audit(1350572240.986:374): avc:  denied  { write } for  pid=4733 comm="chsh" name=".pwd.lock" dev="sda3" ino=142169 scontext=unconfined_u:unconfined_r:chfn_t:s0-s0:c0.c1023 tcontext=system_u:object_r:shadow_t:s0 tclass=file
:type=SYSCALL msg=audit(1350572240.986:374): arch=x86_64 syscall=open success=no exit=EACCES a0=7ff0439aa1ac a1=80041 a2=180 a3=22 items=0 ppid=4658 pid=4733 auid=1000 uid=1000 gid=1000 euid=0 suid=0 fsuid=0 egid=1000 sgid=1000 fsgid=1000 tty=pts0 ses=2 comm=chsh exe=/usr/bin/chsh subj=unconfined_u:unconfined_r:chfn_t:s0-s0:c0.c1023 key=(null)
:Hash: chsh,chfn_t,shadow_t,file,write
:#============= chfn_t ==============
:allow chfn_t shadow_t:file write;
:audit2allow -R
:#============= chfn_t ==============
:allow chfn_t shadow_t:file write;
Comment 1 Xaver Hellauer 2012-10-18 11:08:35 EDT
Created attachment 629506 [details]
File: type
Comment 2 Xaver Hellauer 2012-10-18 11:08:37 EDT
Created attachment 629507 [details]
File: hashmarkername
Comment 3 Michel Alexandre Salim 2012-10-26 15:14:22 EDT
Attempting to change shell using chsh -s /bin/zsh, fresh install of F17 updated to latest F18

Package: (null)
OS Release: Fedora release 18 (Spherical Cow)
Comment 4 Daniel Walsh 2012-10-26 15:41:46 EDT
Fixed in selinux-policy-3.11.1-47.fc18.noarch
Comment 5 Fedora Update System 2012-11-05 16:06:40 EST
selinux-policy-3.11.1-50.fc18 has been submitted as an update for Fedora 18.
Comment 6 Fedora Update System 2012-11-06 13:54:34 EST
Package selinux-policy-3.11.1-50.fc18:
* should fix your issue,
* was pushed to the Fedora 18 testing repository,
* should be available at your local mirror within two days.
Update it with:
# su -c 'yum update --enablerepo=updates-testing selinux-policy-3.11.1-50.fc18'
as soon as you are able to.
Please go to the following url:
then log in and leave karma (feedback).
Comment 7 Fedora Update System 2012-12-20 11:15:20 EST
selinux-policy-3.11.1-50.fc18 has been pushed to the Fedora 18 stable repository.  If problems still persist, please make note of it in this bug report.

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