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Bug 1487984 - SELinux is preventing passwd map access to /etc/passwd and /etc/shadow
Summary: SELinux is preventing passwd map access to /etc/passwd and /etc/shadow
Keywords:
Status: CLOSED ERRATA
Alias: None
Product: Fedora
Classification: Fedora
Component: selinux-policy
Version: 27
Hardware: Unspecified
OS: Unspecified
unspecified
unspecified
Target Milestone: ---
Assignee: Lukas Vrabec
QA Contact: Fedora Extras Quality Assurance
URL:
Whiteboard:
: 1496716 (view as bug list)
Depends On:
Blocks: F27BetaFreezeException 1481454
TreeView+ depends on / blocked
 
Reported: 2017-09-04 03:45 UTC by Dusty Mabe
Modified: 2017-09-28 13:21 UTC (History)
8 users (show)

Fixed In Version: selinux-policy-3.13.1-283.fc27
Doc Type: If docs needed, set a value
Doc Text:
Clone Of:
Environment:
Last Closed: 2017-09-16 05:55:18 UTC
Type: Bug


Attachments (Terms of Use)

Description Dusty Mabe 2017-09-04 03:45:50 UTC
Description of problem:

$subject

See: 

[fedora@ip-10-0-213-131 ~]$ sudo ausearch -m avc,user_avc
----
time->Mon Sep  4 03:26:21 2017
type=PROCTITLE msg=audit(1504495581.030:116): proctitle=706173737764002D6C006665646F7261
type=SYSCALL msg=audit(1504495581.030:116): arch=c000003e syscall=9 success=no exit=-13 a0=0 a1=51 a2=1 a3=1 items=0 ppid=800 pid=974 auid=4294967295 uid=0 gid=0 euid=0 suid=0 fsuid=0 egid=0 sgid=0 fsgid=0 tty=(none) ses=4294967295 comm="passwd" exe="/usr/bin/passwd" subj=system_u:system_r:passwd_t:s0 key=(null)
type=AVC msg=audit(1504495581.030:116): avc:  denied  { map } for  pid=974 comm="passwd" path="/etc/passwd" dev="dm-0" ino=4228024 scontext=system_u:system_r:passwd_t:s0 tcontext=system_u:object_r:passwd_file_t:s0 tclass=file permissive=0
----
time->Mon Sep  4 03:26:21 2017
type=PROCTITLE msg=audit(1504495581.030:117): proctitle=706173737764002D6C006665646F7261
type=SYSCALL msg=audit(1504495581.030:117): arch=c000003e syscall=9 success=no exit=-13 a0=0 a1=198 a2=1 a3=1 items=0 ppid=800 pid=974 auid=4294967295 uid=0 gid=0 euid=0 suid=0 fsuid=0 egid=0 sgid=0 fsgid=0 tty=(none) ses=4294967295 comm="passwd" exe="/usr/bin/passwd" subj=system_u:system_r:passwd_t:s0 key=(null)
type=AVC msg=audit(1504495581.030:117): avc:  denied  { map } for  pid=974 comm="passwd" path="/etc/shadow" dev="dm-0" ino=4219637 scontext=system_u:system_r:passwd_t:s0 tcontext=system_u:object_r:shadow_t:s0 tclass=file permissive=0
----
time->Mon Sep  4 03:26:21 2017
type=PROCTITLE msg=audit(1504495581.036:118): proctitle=706173737764002D6C006665646F7261
type=SYSCALL msg=audit(1504495581.036:118): arch=c000003e syscall=9 success=no exit=-13 a0=0 a1=51 a2=1 a3=1 items=0 ppid=800 pid=974 auid=4294967295 uid=0 gid=0 euid=0 suid=0 fsuid=0 egid=0 sgid=0 fsgid=0 tty=(none) ses=4294967295 comm="passwd" exe="/usr/bin/passwd" subj=system_u:system_r:passwd_t:s0 key=(null)
type=AVC msg=audit(1504495581.036:118): avc:  denied  { map } for  pid=974 comm="passwd" path="/etc/passwd+" dev="dm-0" ino=4228017 scontext=system_u:system_r:passwd_t:s0 tcontext=system_u:object_r:passwd_file_t:s0 tclass=file permissive=0
----
time->Mon Sep  4 03:26:21 2017
type=PROCTITLE msg=audit(1504495581.042:119): proctitle=706173737764002D6C006665646F7261
type=SYSCALL msg=audit(1504495581.042:119): arch=c000003e syscall=9 success=no exit=-13 a0=0 a1=198 a2=1 a3=1 items=0 ppid=800 pid=974 auid=4294967295 uid=0 gid=0 euid=0 suid=0 fsuid=0 egid=0 sgid=0 fsgid=0 tty=(none) ses=4294967295 comm="passwd" exe="/usr/bin/passwd" subj=system_u:system_r:passwd_t:s0 key=(null)
type=AVC msg=audit(1504495581.042:119): avc:  denied  { map } for  pid=974 comm="passwd" path="/etc/shadow+" dev="dm-0" ino=4228017 scontext=system_u:system_r:passwd_t:s0 tcontext=system_u:object_r:shadow_t:s0 tclass=file permissive=0
----
time->Mon Sep  4 03:26:21 2017
type=PROCTITLE msg=audit(1504495581.045:120): proctitle=706173737764002D6C006665646F7261
type=SYSCALL msg=audit(1504495581.045:120): arch=c000003e syscall=9 success=no exit=-13 a0=0 a1=51 a2=1 a3=1 items=0 ppid=800 pid=974 auid=4294967295 uid=0 gid=0 euid=0 suid=0 fsuid=0 egid=0 sgid=0 fsgid=0 tty=(none) ses=4294967295 comm="passwd" exe="/usr/bin/passwd" subj=system_u:system_r:passwd_t:s0 key=(null)
type=AVC msg=audit(1504495581.045:120): avc:  denied  { map } for  pid=974 comm="passwd" path="/etc/passwd" dev="dm-0" ino=4228024 scontext=system_u:system_r:passwd_t:s0 tcontext=system_u:object_r:passwd_file_t:s0 tclass=file permissive=0
----
time->Mon Sep  4 03:26:21 2017
type=PROCTITLE msg=audit(1504495581.045:121): proctitle=706173737764002D6C006665646F7261
type=SYSCALL msg=audit(1504495581.045:121): arch=c000003e syscall=9 success=no exit=-13 a0=0 a1=198 a2=1 a3=1 items=0 ppid=800 pid=974 auid=4294967295 uid=0 gid=0 euid=0 suid=0 fsuid=0 egid=0 sgid=0 fsgid=0 tty=(none) ses=4294967295 comm="passwd" exe="/usr/bin/passwd" subj=system_u:system_r:passwd_t:s0 key=(null)
type=AVC msg=audit(1504495581.045:121): avc:  denied  { map } for  pid=974 comm="passwd" path="/etc/shadow" dev="dm-0" ino=4228017 scontext=system_u:system_r:passwd_t:s0 tcontext=system_u:object_r:shadow_t:s0 tclass=file permissive=0
[fedora@ip-10-0-213-131 ~]$ 
[fedora@ip-10-0-213-131 ~]$ 
[fedora@ip-10-0-213-131 ~]$ 



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

[fedora@ip-10-0-213-131 ~]$ rpm-ostree status
State: idle
Deployments:
● fedora-atomic:fedora/27/x86_64/atomic-host
                   Version: 27.20170903.n.0 (2017-09-03 17:26:23)
                    Commit: 0be94e70ae37a630518174af0f86a2f02cfdaab940f1d226423c4cc418e58d83
              GPGSignature: (unsigned)
[fedora@ip-10-0-213-131 ~]$ rpm -q selinux-policy
selinux-policy-3.13.1-277.fc27.noarch

Comment 1 Fedora Update System 2017-09-12 13:01:58 UTC
selinux-policy-3.13.1-283.fc27 has been submitted as an update to Fedora 27. https://bodhi.fedoraproject.org/updates/FEDORA-2017-5aefc0255f

Comment 2 Fedora Update System 2017-09-12 13:02:30 UTC
selinux-policy-3.13.1-283.fc27 has been submitted as an update to Fedora 27. https://bodhi.fedoraproject.org/updates/FEDORA-2017-5aefc0255f

Comment 3 Fedora Blocker Bugs Application 2017-09-12 13:06:57 UTC
Proposed as a Freeze Exception for 27-beta by Fedora user dustymabe using the blocker tracking app because:

 selinux: allow map access to /etc/passwd and /etc/shadow

Seeing these denials on Fedora 27 Atomic Host

Comment 4 Fedora Update System 2017-09-12 19:56:12 UTC
selinux-policy-3.13.1-283.fc27 has been pushed to the Fedora 27 testing repository. If problems still persist, please make note of it in this bug report.
See https://fedoraproject.org/wiki/QA:Updates_Testing for
instructions on how to install test updates.
You can provide feedback for this update here: https://bodhi.fedoraproject.org/updates/FEDORA-2017-5aefc0255f

Comment 5 Fedora Update System 2017-09-16 05:55:18 UTC
selinux-policy-3.13.1-283.fc27 has been pushed to the Fedora 27 stable repository. If problems still persist, please make note of it in this bug report.

Comment 6 Dusty Mabe 2017-09-20 20:02:10 UTC
confirmed this is now fixed!

Comment 7 Peter 2017-09-28 13:21:41 UTC
*** Bug 1496716 has been marked as a duplicate of this bug. ***


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