Bug 1270827 - local overrides: don't contact server with overridden name/id
Summary: local overrides: don't contact server with overridden name/id
Alias: None
Product: Red Hat Enterprise Linux 7
Classification: Red Hat
Component: sssd
Version: 7.0
Hardware: Unspecified
OS: Unspecified
Target Milestone: rc
: ---
Assignee: SSSD Maintainers
QA Contact: Kaushik Banerjee
Depends On:
TreeView+ depends on / blocked
Reported: 2015-10-12 13:18 UTC by Jakub Hrozek
Modified: 2020-05-02 18:12 UTC (History)
11 users (show)

Fixed In Version: sssd-1.13.0-40.el7
Doc Type: Bug Fix
Doc Text:
Clone Of:
Last Closed: 2015-11-19 11:41:06 UTC
Target Upstream Version:

Attachments (Terms of Use)

System ID Private Priority Status Summary Last Updated
Github SSSD sssd issues 3874 0 None None None 2020-05-02 18:12:27 UTC
Red Hat Product Errata RHSA-2015:2355 0 normal SHIPPED_LIVE Low: sssd security, bug fix, and enhancement update 2015-11-19 10:27:42 UTC

Description Jakub Hrozek 2015-10-12 13:18:57 UTC
This bug is created as a clone of upstream ticket:

Integration test revealed a problem when trying to perform initgroups of overriden name.

If you override a name to say alias1 and then try to run initgroups on alias1 it tries to search alias1 with views in LDAP. This yields an empty result. The same problem is probably when trying to refresh expired users and groups.

We need to ensure that if local overrides are use we will always search for the original name/id in LDAP instead of an over-ridden one.

Comment 2 Jakub Hrozek 2015-10-12 14:59:49 UTC
During a tmate session, Pavel showed me the simplest steps to reproduce:

0) Connect SSSD with LDAP back end
1) remove caches:
 # rm -f /var/lib/sss/db/cache_* /var/lib/sss/mc/*
2) service sssd start
3) add override without calling id first:
 # sss_override user-add $orig_name -n $alias
4) retrieve overriden name:
 # id $alias

With the unpatched packages, the id wouldn't show any supplemental groups (=initgroups will fail). With the patched packages, all supplemental groups will be shown for the overriden name.

Comment 5 Dan Lavu 2015-10-12 16:08:47 UTC
Yes this is a problem only the primary groups are present in the AD provider as well. 

Redirecting to /bin/systemctl start  sssd.service

[root@test db]# sss_override  user-add -n dlavu123@sssdad2012r2.com dlavu@sssdad2012r2.com 
SSSD needs to be restarted for the changes to take effect.

[root@test db]# service sssd restart
Redirecting to /bin/systemctl restart  sssd.service

[root@test db]# id dlavu123@sssdad2012r2.com
uid=768001104(dlavu123@sssdad2012r2.com) gid=768000513(domain users@sssdad2012r2.com) groups=768000513(domain users@sssdad2012r2.com)

Comment 6 Jakub Hrozek 2015-10-14 11:35:59 UTC
Fixed upstream:

Comment 8 Dan Lavu 2015-10-14 15:04:30 UTC
Verified against sssd-1.13.0-40.el7.x86_64

[root@test x86_64]# getent passwd dlavu123@sssdad2012r2.com
dlavu123@sssdad2012r2.com:*:768001104:768000513:Dan Lavu:/home/dlavu123@sssdad2012r2.com:/bin/bash

[root@test x86_64]# id  dlavu123@sssdad2012r2.com
uid=768001104(dlavu123@sssdad2012r2.com) gid=768000513(domain users@sssdad2012r2.com) groups=768000513(domain users@sssdad2012r2.com),768000572(denied rodc password replication group@sssdad2012r2.com),768000518(schema admins@sssdad2012r2.com),768000519(enterprise admins@sssdad2012r2.com),768000520(group policy creator owners@sssdad2012r2.com),768000512(domain admins@sssdad2012r2.com)

All groups are listed.

Comment 9 errata-xmlrpc 2015-11-19 11:41:06 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, and where to find the updated
files, follow the link below.

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


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