Rights for "Authenticated Users" are overriding individual rights

[aubertaa]

Jenkins and plugins versions report

Environment

Jenkins: 2.319.1
OS: Linux - 5.4.0-1060-aws
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What Operating System are you using (both controller, and any agents involved in the problem)?

Master is on : OS Linux - 5.4.0-1060-aws No other system involved to reproduce the issue

Reproduction steps

1. configure Jenkins to use "Azure Active Directory Matrix-based security"
2. set no specific rights for "anonymous users" and for "Authenticated users"
3. set all rights for an existing AD user :

I tested this in an isolated context, by creating a new job and choosing "Do not inheirt permissions grants from other ACLs", then setting the permissions as describe thereabove :

4. Then try to read job history by calling :

• YOUJOBURL/api/json?tree=allBuilds[result,number,timestamp,duration,id]&depth=20
• Authentication Basic : your user name / API token

You'll get a 404.

5. Just add "read" permission to "Authenticated users"

6. Try again to read job history by running the API call again, you'll get a valid result.

It seems that giving rights to a specific user is not well considered. Needing to give also rights to a larger group seems to be a regression and not conform to "least privilege" security common practices.

Thanks for your help on that.

Expected Results

Individual rights should override more global ones : extending rights for a specific user should be possible.

Actual Results

Individual rights are overriden by "Authenticated users" ones.

Anything else?

No response