I stumbled upon this issue recently: somebody has created an admin user in a fresh Jenkins installation (most likely, through the normal Jenkins interface). However, after a few days, they couldn’t login as the admin, seeing this error:
admin is missing the Overall/Read permission
I couldn’t find a definite answer to the issue online. So I sshd into the jenkins box to see if I could figure something out there. I did.
In the $JENKINS_HOME directory, /Users/Shared/Jenkins/Home/ in my case, there is the users/ directory which stores some user info, and it had an admin directory. So far so good. The user seemed to be alive.
I went to $JENKINS_HOME/config.xml and it had permission tags like this: