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Bug 2179712 - auth_to_local_names failed to map to root user
Summary: auth_to_local_names failed to map to root user
Keywords:
Status: CLOSED MIGRATED
Alias: None
Product: Red Hat Enterprise Linux 8
Classification: Red Hat
Component: krb5
Version: 8.7
Hardware: Unspecified
OS: Unspecified
unspecified
medium
Target Milestone: rc
: ---
Assignee: Julien Rische
QA Contact: Michal Polovka
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2023-03-20 02:07 UTC by Ding-Yi Chen
Modified: 2023-09-18 22:41 UTC (History)
2 users (show)

Fixed In Version:
Doc Type: If docs needed, set a value
Doc Text:
Clone Of:
Environment:
Last Closed: 2023-09-18 22:41:06 UTC
Type: Bug
Target Upstream Version:
Embargoed:
pm-rhel: mirror+

Attachments (Terms of Use)


Links
System ID Private Priority Status Summary Last Updated
Red Hat Issue Tracker FREEIPA-9581 0 None None None 2023-03-20 02:08:34 UTC
Red Hat Issue Tracker   RHEL-4933 0 None Migrated None 2023-09-18 22:40:13 UTC
Red Hat Issue Tracker RHELPLAN-152268 0 None None None 2023-03-20 02:08:39 UTC

Description Ding-Yi Chen 2023-03-20 02:07:32 UTC 
Description of problem:
Customer rely on the following config to map to root user for their web application

~~~
[realms]
EXAMPLE.COM = {
  kdc = kerberos.example.com
  auth_to_local_names = {
    alice = root
    bob = root
  }
 }
~~~

However, they can not do so after upgrade their 
krb5-workstation from krb5-workstation-1.18.2-8.3.el8_4  to 1.18.2-22.el8_7

httpd log before upgrade (alice become root, customer want this)
~~~
10.0.0.101 - - [15/Mar/2023:12:49:33 +1030] "GET /webapp/ HTTP/1.1" 401 381 "-" "Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 6.2; WOW64; Trident/7.0; .NET4.0C; .NET4.0E; .NET CLR 2.0.50727; .NET CLR 3.0.30729; .NET CLR 3.5.30729; Zoom 3.6.0)"
10.0.0.101 - root [15/Mar/2023:12:49:33 +1030] "GET /webapp/ HTTP/1.1" 304 - "-" "Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 6.2; WOW64; Trident/7.0; .NET4.0C; .NET4.0E; .NET CLR 2.0.50727; .NET CLR 3.0.30729; .NET CLR 3.5.30729; Zoom 3.6.0)"
10.0.0.101 - root [15/Mar/2023:12:49:33 +1030] "GET /webapp/CBS.css HTTP/1.1" 304 - "http://appserver1/webapp/" "Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 6.2; WOW64; Trident/7.0; .NET4.0C; .NET4.0E; .NET CLR 2.0.50727; .NET CLR 3.0.30729; .NET CLR 3.5.30729; Zoom 3.6.0)"
~~~

http log after upgrade (alice is still alice)
~~~
10.0.0.101 - alice [15/Mar/2023:12:53:04 +1030] "GET /webapp/ HTTP/1.1" 304 - "-" "Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 6.2; WOW64; Trident/7.0; .NET4.0C; .NET4.0E; .NET CLR 2.0.50727; .NET CLR 3.0.30729; .NET CLR 3.5.30729; Zoom 3.6.0)"
10.0.0.101 - alice [15/Mar/2023:12:53:04 +1030] "GET /webapp/CBS.css HTTP/1.1" 304 - "http://appserver1/webapp/" "Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 6.2; WOW64; Trident/7.0; .NET4.0C; .NET4.0E; .NET CLR 2.0.50727; .NET CLR 3.0.30729; .NET CLR 3.5.30729; Zoom 3.6.0)"
10.0.0.101 - alice [15/Mar/2023:12:53:04 +1030] "GET /webapp/images/poweredbyebix.gif HTTP/1.1" 304 - "http://appserver1/webapp/" "Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 6.2; WOW64; Trident/7.0; .NET4.0C; .NET4.0E; .NET CLR 2.0.50727; .NET CLR 3.0.30729; .NET CLR 3.5.30729; Zoom 3.6.0)"
~~~

However, alice map to cindy (non-root) worked even after upgrade:
~~~
10.0.0.101 - cindy [16/Feb/2023:09:38:05 +1030] "GET /webapp HTTP/1.1" 301 230 "-" "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/109.0.0.0 Safari/537.36"
10.0.0.101 - cindy [16/Feb/2023:09:38:05 +1030] "GET /webapp/ HTTP/1.1" 200 1853 "-" "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/109.0.0.0 Safari/537.36"
10.0.0.101 - cindy [16/Feb/2023:09:38:05 +1030] "GET /webapp/CBS.css HTTP/1.1" 200 1548 "http://appserver3/webapp/" "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/109.0.0.0 Safari/537.36"
~~~

Version-Release number of selected component (if applicable):
krb5-workstation-1.18.2-8.3.el8_4  to 1.18.2-22.el8_7

How reproducible:
Always with krb5-workstation-1.18.2-22.el8_7
But not with krb5-workstation-1.18.2-8.3.el8_4


Steps to Reproduce:
1. Use web app login as alice


Actual results:

alice is still alice, auth_to_local_names did not work

Expected results:

alice become root, auth_to_local_names works

Additional info:

While mod_auth_gssapi upgrade seems related (1.6.1-7.1.el8 - 1.6.1-9.el8), 
thus we tested downgrade, behaviour does not change.


mod_auth_gssapi that seems related:
~~~
* Thu Apr 28 2022 Francisco Trivino <ftrivino> 1.6.1-9
- Add missing repos to the osci tests
- Fix gss localname test to work with older gssapi version
- Resolves: #2083122
- Add ability to expose the used mechanism
- Resolves: #2046231

* Wed Apr 27 2022 Francisco Trivino <ftrivino> 1.6.1-8
- Add test for gss_localname
- Fix gss_localname with SPNEGO wrapping
~~~
Comment 1 Sridhar 2023-03-20 06:08:22 UTC 
The auth_to_local does not map to any user just not the root user. 

For example if we need to map alice to bill it does not work. 

Thanks
Comment 2 Ding-Yi Chen 2023-03-22 06:30:21 UTC 
Sridhar has confirmed that previous "successful" conversion (alice - cindy) was due to previous browser cache.
After browser cache refresh, the alice - cindy no longer work.
 
  auth_to_local_names = {
    alice = cindy
    bob = root
  }
Comment 6 RHEL Program Management 2023-09-18 22:36:02 UTC 
Issue migration from Bugzilla to Jira is in process at this time. This will be the last message in Jira copied from the Bugzilla bug.
Comment 7 RHEL Program Management 2023-09-18 22:41:06 UTC 
This BZ has been automatically migrated to the issues.redhat.com Red Hat Issue Tracker. All future work related to this report will be managed there.

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