Bug 53422 – UMC ACL processing fails if group contains invalid user DN

Bug 53422 - UMC ACL processing fails if group contains invalid user DN


Summary:	UMC ACL processing fails if group contains invalid user DN

Status:	NEW

Product:	UCS
Classification:	Unclassified
Component:	UMC (Generic)
Version:	UCS 4.4
Hardware:	Other Linux

Importance:	P5 normal (vote)
Target Milestone:	---
Assigned To:	UMC maintainers
QA Contact:	UMC maintainers

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Reported:	2021-06-08 15:08 CEST by Ingo Steuwer
Modified:	2021-06-08 16:54 CEST (History)
CC List:	2 users (show)

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Description Ingo Steuwer

2021-06-08 15:08:33 CEST

Steps to reproduce:

- add a valid "User A" to "Domain Admins"
- add a non existing DN as user to "Domain Admins"
- Login in UMC as "User A"

You'll have an empty UMC, seems like the ACL processing fails due to the invalid User DN. It can be fixed by removing the non existing DN on the command line.

Comment 1 Florian Best

2021-06-08 16:21:58 CEST

Can you provide univention-management-console-server.log ?

Comment 2 Ingo Steuwer

2021-06-08 16:47:49 CEST

(In reply to Florian Best from comment #1)
> Can you provide univention-management-console-server.log ?

Nothing special, this is a session which failed (I replaced the customer DN):

08.06.21 11:20:03.097  MODULE      ( PROCESS ) : Setting auth type to u'SAML'
08.06.21 11:20:03.778  MODULE      ( PROCESS ) : Setting auth type to u'SAML'
08.06.21 11:20:04.484  MODULE      ( PROCESS ) : Setting auth type to u'SAML'
08.06.21 11:20:05.741  MAIN        ( PROCESS ) : LDAP bind for user '<DN>'.
08.06.21 11:20:06.016  MAIN        ( WARN    ) : SAML binddn does not match: '<lower case DN>' != '<DN>'

Actually there should be a second session for a different user, but I don't see any log entry for that.

Comment 3 Florian Best

2021-06-08 16:54:13 CEST

I can't reproduce this in UCS 5.0:
udm users/user create --set username=testA --set password=univention --set lastname=foo --append groups='cn=Domain Admins,cn=groups,l=school,l=dev' --position cn=users,l=school,l=dev
and copied uniqueMember,memberUid in "cn=Domain Admins" changing testA→testB.
After UMC login with testA everything in UMC works.