LDAP Connection (OpenLDAP) no longer works: access denied for all accounts
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### Summary
I've upgraded from Gitlab 10.0 to gitlab-ce-10.5.3-ce.0.el7.x86_64 via the Omnibus packages.
After the upgrade, all LDAP accounts are blocked and do not work anymore. Every user gets an access denied.
The error message in /gitlab-rails/aaplication.log is:
March 06, 2018 14:05: LDAP account "cn=dkreyenb,ou=people,dc=foobar" does not exist anymore, blocking Gitlab user "Dirk Kreyenberg" (dirk.kreyenberg@gmail.com)
The exact same config worked in 10.0. Also the ldap server has been not touched.
### Steps to reproduce
Log in with valid credientials result in "Access denied for you LDAP account"
March 06, 2018 14:05: LDAP account "cn=dkreyenb,ou=people,dc=foobar" does not exist anymore, blocking Gitlab user "Dirk Kreyenberg" (dirk.kreyenberg@gmail.com)
When I use a bogus password the GUI tells me: March 06, 2018 14:05: Could not authenticate you from Ldapmain because "Invalid credentials for dkreyenb". This makes sense, apparently Gitlab gets something from the ldap server.
I also unblocked the user manually via the rails console, but after a new login try, it gets blocked again:
gitlab-rails console
Loading production environment (Rails 4.2.10)
irb(main):001:0> user = User.find_by_email("dirk.kreyenberg@gmail.com")
=> #<User id:2 @dkreyenb>
irb(main):002:0> user.state="active"
=> "active"
irb(main):003:0> user.save
=> true
irb(main):004:0>
### Example config
gitlab_rails['ldap_enabled'] = true
gitlab_rails['ldap_servers'] = {
'main' => {
'label' => 'LDAP',
'host' => 'x.x.x.x',
'port' => 636,
'uid' => 'uid',
'encryption' => 'simple_tls',
'verify_certificates' => true,
'bind_dn' => 'CN=ldapagent,OU=foobar,DC=foo,DC=bar',
'password' => '*******',
'active_directory' => false,
'base' => 'OU=people,DC=foobar',
'allow_username_or_email_login' => false,
'block_auto_created_users' => true,
'ca_file' => '/etc/openldap/cacerts/thecacert.pem'
}
}
### What is the current *bug* behavior?
All ldap users cannot be authenticated anymore via ldap.
### What is the expected *correct* behavior?
The ldap login should work and users shouldn't be blocked
### Relevant logs and/or screenshots
production.log
Started POST "/gitlab/users/auth/ldapmain/callback" for 10.92.39.25 at 2018-03-06 14:16:17 +0100
Processing by OmniauthCallbacksController#ldapmain as HTML
Parameters: {"utf8"=>"✓", "authenticity_token"=>"[FILTERED]", "username"=>"dkreyenb", "password"=>"[FILTERED]"}
Redirected to https://foo.bar/gitlab/users/sign_in
Completed 302 Found in 254ms (ActiveRecord: 23.0ms)
application.log
March 06, 2018 14:16: LDAP account "cn=dkreyenb,ou=people,dc=foobar" does not exist anymore, blocking Gitlab user "Dirk Kreyenberg" (dirk.kreyenberg@gmail.com)
### Output of checks
This happens on a local gitlab-ce installation, no users were listed below.
gitlab-rake gitlab:ldap:check --trace
** Invoke gitlab:ldap:check (first_time)
** Invoke gitlab_environment (first_time)
** Invoke environment (first_time)
** Execute environment
** Execute gitlab_environment
** Execute gitlab:ldap:check
Checking LDAP ...
Server: ldapmain
LDAP authentication... Success
LDAP users with access to your GitLab server (only showing the first 100 results)
Checking LDAP ... Finished
#### Results of GitLab environment info
<details>
<summary>Expand for output related to GitLab environment info</summary>
<pre>
System information
System:
Current User: git
Using RVM: no
Ruby Version: 2.3.6p384
Gem Version: 2.6.13
Bundler Version:1.13.7
Rake Version: 12.3.0
Redis Version: 3.2.11
Git Version: 2.14.3
Sidekiq Version:5.0.5
Go Version: unknown
GitLab information
Version: 10.5.3
Revision: ec4ac77
Directory: /opt/gitlab/embedded/service/gitlab-rails
DB Adapter: postgresql
URL: https://foo.bar/gitlab
HTTP Clone URL: https://foo.bar/gitlab/some-group/some-project.git
SSH Clone URL: git@foo.bar:some-group/some-project.git
Using LDAP: yes
Using Omniauth: no
GitLab Shell
Version: 6.0.3
Repository storage paths:
- default: /ado/sw/gitlab-data/repositories
Hooks: /opt/gitlab/embedded/service/gitlab-shell/hooks
Git: /opt/gitlab/embedded/bin/git
</pre>
</details>
#### Results of GitLab application Check
<details>
<summary>Expand for output related to the GitLab application check</summary>
<pre>
gitlab-rake gitlab:check SANITIZE=true
Checking GitLab Shell ...
GitLab Shell version >= 6.0.3 ? ... OK (6.0.3)
Repo base directory exists?
default... yes
Repo storage directories are symlinks?
default... no
Repo paths owned by git:root, or git:git?
default... yes
Repo paths access is drwxrws---?
default... yes
hooks directories in repos are links: ...
3/1 ... ok
10/2 ... ok
12/3 ... ok
11/4 ... ok
10/5 ... ok
3/6 ... ok
15/7 ... ok
15/8 ... repository is empty
Running /opt/gitlab/embedded/service/gitlab-shell/bin/check
Check GitLab API access: OK
Redis available via internal API: OK
Access to /var/opt/gitlab/.ssh/authorized_keys: OK
gitlab-shell self-check successful
Checking GitLab Shell ... Finished
Checking Sidekiq ...
Running? ... yes
Number of Sidekiq processes ... 1
Checking Sidekiq ... Finished
Reply by email is disabled in config/gitlab.yml
Checking LDAP ...
Server: ldapmain
LDAP authentication... Success
LDAP users with access to your GitLab server (only showing the first 100 results)
Checking LDAP ... Finished
Checking GitLab ...
Git configured correctly? ... yes
Database config exists? ... yes
All migrations up? ... yes
Database contains orphaned GroupMembers? ... no
GitLab config exists? ... yes
GitLab config up to date? ... yes
Log directory writable? ... yes
Tmp directory writable? ... yes
Uploads directory exists? ... yes
Uploads directory has correct permissions? ... yes
Uploads directory tmp has correct permissions? ... yes
Init script exists? ... skipped (omnibus-gitlab has no init script)
Init script up-to-date? ... skipped (omnibus-gitlab has no init script)
Projects have namespace: ...
3/1 ... yes
10/2 ... yes
12/3 ... yes
11/4 ... yes
10/5 ... yes
3/6 ... yes
15/7 ... yes
15/8 ... yes
Redis version >= 2.8.0? ... yes
Ruby version >= 2.3.5 ? ... yes (2.3.6)
Git version >= 2.9.5 ? ... yes (2.14.3)
Git user has default SSH configuration? ... yes
Active users: ... 5
Checking GitLab ... Finished
</pre>
</details>
### Possible fixes
No idea, is there is way to check an ldap connect in the "gitlab-rails console" and get a more verbose output?
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