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Bug 1979404

Summary: Changes made to /etc/pam.d/sssd-shadowutils are overwritten back to default on sssd-common package upgrade
Product: Red Hat Enterprise Linux 8 Reporter: Bijesh Thekkepat <bthekkep>
Component: sssdAssignee: Alexey Tikhonov <atikhono>
Status: CLOSED ERRATA QA Contact: Anuj Borah <aborah>
Severity: high Docs Contact:
Priority: high    
Version: 8.1CC: dlavu, grajaiya, ipedrosa, jhrozek, lslebodn, mzidek, pbrezina, tscherf
Target Milestone: betaKeywords: Triaged
Target Release: ---Flags: pm-rhel: mirror+
Hardware: x86_64   
OS: Linux   
Whiteboard: sync-to-jira
Fixed In Version: sssd-2.5.2-1.el8 Doc Type: If docs needed, set a value
Doc Text:
Story Points: ---
Clone Of: Environment:
Last Closed: 2021-11-09 19:47:29 UTC Type: Bug
Regression: --- Mount Type: ---
Documentation: --- CRM:
Verified Versions: Category: ---
oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
Embargoed:

Description Bijesh Thekkepat 2021-07-05 21:48:46 UTC 
Description of problem:

Chanages made to /etc/pam.d/sssd-shadowutils gets overwritten back to default when sssd-common package is upgraded.

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

sssd-common-2.2.0-19.el8_1.1.x86_64
sssd-2.2.0-19.el8_1.1.x86_64
RHEL 8.1

Steps to Reproduce:-

1. # rpm -qa | grep sssd-common
sssd-common-2.2.0-19.el8_1.1.x86_64
sssd-2.2.0-19.el8_1.1.x86_64


2. [root@redhat ~]# cat /etc/pam.d/sssd-shadowutils 
#%PAM-1.0
auth        [success=done ignore=ignore default=die] pam_unix.so nullok try_first_pass
auth        required      pam_deny.so

account     required      pam_unix.so
account     required      pam_permit.so

3. [root@redhat ~]# vi /etc/pam.d/sssd-shadowutils 

[root@redhat ~]# cat /etc/pam.d/sssd-shadowutils
#%PAM-1.0
auth        [success=done ignore=ignore default=die] pam_unix.so nullok try_first_pass
auth        sufficient                                   pam_sss.so forward_pass  <--------- Add this line
auth        required      pam_deny.so

account     required      pam_unix.so
account     required      pam_permit.so


4. [root@redhat ~]# yum upgrade sssd-common -y

5. [root@redhat ~]# rpm -qa | grep sssd
sssd-common-2.4.0-9.el8_4.1.x86_64
sssd-2.4.0-9.el8_4.1.x86_64


[root@redhat ~]# cat /etc/pam.d/sssd-shadowutils
#%PAM-1.0
auth        [success=done ignore=ignore default=die] pam_unix.so nullok try_first_pass
auth        required      pam_deny.so

account     required      pam_unix.so
account     required      pam_permit.so


Actual results:

When the sssd-common package is updated the changes in /etc/pam.d/sssd-shadow-utils are overwritten.

Expected results:

Updating sssd-common package should not overwrite /etc/pam.d/sssd-shadow-utils file

Additional info:

Reference - https://bugzilla.redhat.com/show_bug.cgi?id=1764305

This was fixed in RHEL 7

* note - I only tested on RHEL 8.1, sssd-2.2.0-19 
Did not test on RHEL 8.0
Comment 2 Alexey Tikhonov 2021-07-06 20:43:38 UTC 
https://github.com/SSSD/sssd/blob/71301ccf8aa54f7272e7ef8009402db622fe8cd9/contrib/sssd.spec.in#L724
Comment 10 errata-xmlrpc 2021-11-09 19:47:29 UTC 
Since the problem described in this bug report should be
resolved in a recent advisory, it has been closed with a
resolution of ERRATA.

For information on the advisory (sssd bug fix and enhancement update), and where to find the updated
files, follow the link below.

If the solution does not work for you, open a new bug report.

https://access.redhat.com/errata/RHBA-2021:4435