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Bug 2061795 - Unable to lookup AD user if the AD group contains '@' symbol
Summary: Unable to lookup AD user if the AD group contains '@' symbol
Keywords:
Status: CLOSED ERRATA
Alias: None
Product: Red Hat Enterprise Linux 9
Classification: Red Hat
Component: sssd
Version: 9.0
Hardware: All
OS: All
unspecified
medium
Target Milestone: rc
: ---
Assignee: Tomas Halman
QA Contact: shridhar
URL:
Whiteboard: sync-to-jira
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2022-03-08 14:55 UTC by Abhijit Roy
Modified: 2022-11-15 13:07 UTC (History)
9 users (show)

Fixed In Version: sssd-2.7.1-2.el9
Doc Type: If docs needed, set a value
Doc Text:
Clone Of:
Environment:
Last Closed: 2022-11-15 11:17:22 UTC
Type: Bug
Target Upstream Version:
Embargoed:

Attachments (Terms of Use)


Links
System ID Private Priority Status Summary Last Updated
Github SSSD sssd issues 6055 0 None open Unable to lookup AD user if the AD group contains '@' symbol 2022-03-11 14:49:26 UTC
Red Hat Issue Tracker RHELPLAN-114818 0 None None None 2022-03-08 15:08:03 UTC
Red Hat Issue Tracker SSSD-4392 0 None None None 2022-03-10 14:54:55 UTC
Red Hat Product Errata RHBA-2022:8325 0 None None None 2022-11-15 11:17:50 UTC

Description Abhijit Roy 2022-03-08 14:55:58 UTC 
Description of problem:

Unable to lookup AD user if the AD group contains '@' symbol

Workaround: Adding re_expression = (((?P<name>.+)@(?P<domain>[^@]+$))|(^(?P<name>[^@\\]+)$)) on the IPA server and client's /etc/sssd/sssd.conf

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

sssd version: sssd-2.4.0-9.el8_4.2.x86_64

How reproducible:


Steps to Reproduce:
1.
2.
3.

Actual results:


Expected results:


Additional info:
Comment 1 Alexey Tikhonov 2022-03-08 17:20:18 UTC 
(In reply to Abhijit Roy from comment #0)
> Description of problem:
> 
> Unable to lookup AD user if the AD group contains '@' symbol
> 
> Workaround: Adding re_expression =
> (((?P<name>.+)@(?P<domain>[^@]+$))|(^(?P<name>[^@\\]+)$)) on the IPA server
> and client's /etc/sssd/sssd.conf

IIUC, this ^^ is not a "workaround" but a valid way to cater for this requirement. I.e. this is not a bug, but rather "by design"...
Comment 2 Abhijit Roy 2022-03-08 17:52:37 UTC 
Thanks for your reply.


I thought '@' in group names, there were some issues some years ago but nowadays SSSD is able to handle '@' signs in group names. Which actually sssd does on IPA server and AD joined host but not on IPA client.

[root@-ad ~]# id alleysh
uid=974001325(alleysh) gid=974000513(domain users) groups=974000513(domain users),974001510(alok@testgroup),974001402(linux sudo),974001289(grp10),974001281(grp2),974001288(grp9)
[root@alok-ad ~]# client_loop: send disconnect: Broken pipe
abhijitroy@abroy-mac ~ % 

Feel free to close the bz if the 're_expression' is mandatory on the IPA client side.
Comment 3 Alexey Tikhonov 2022-03-10 14:39:15 UTC 
Upstream PR: https://github.com/SSSD/sssd/pull/6044
Comment 11 Alexey Tikhonov 2022-03-23 11:50:44 UTC 
Pushed PR: https://github.com/SSSD/sssd/pull/6044

* `master`
    * dde276e251ca0210757407b0013578d2e789bf60 - TESTS: New tests for IPA/AD re_expression default
    * c159f52995d211e0ccc72b918f441bd1497549f6 - usertools: move default re_expression definition
    * 0c0705e301886a5af5f0f9ed947d23e00851a104 - usertools: better default for IPA/AD re_expression
Comment 18 Alexey Tikhonov 2022-06-10 13:21:56 UTC 
Additional PR: https://github.com/SSSD/sssd/pull/6205
Comment 19 Alexey Tikhonov 2022-06-13 10:22:07 UTC 
Pushed PR: https://github.com/SSSD/sssd/pull/6205

* `master`
    * 9656516b9af2b3ea4627eab42f11c7667564020f - names: only check sub-domains for regex match
* `sssd-2-7`
    * 536dc9e4f72503942e659ca0dbd022d3dfac148f - names: only check sub-domains for regex match
Comment 23 errata-xmlrpc 2022-11-15 11:17:22 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-2022:8325
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