Exporting password to LDAP with a password policy may cause an inconsistency

• Type: Regression Bug
• Status: Closed
• Resolution: Fixed
• Affects Version/s: 7.2.X, Master
• Fix Version/s: 7.2.10 DXP FP7, 7.2.X, 7.3.3 CE GA4, Master
• Component/s: Application Security > LDAP
• Labels:
  • ee-ts
  • liferay-fixpack-dxp-7-7210
  • pt-app-security-review
• Branch Version/s:
  7.2.x
• Backported to Branch:
  Committed
• Story Points: 1
• Fix Priority: 3
• Sprint: Iteration 40
• Git Pull Request: https://github.com/brianchandotcom/liferay-portal/pull/90566

Steps To Reproduce (Mostly taken from LPS-76332)

1. Start a Docker container with OpenLDAP installed and a password policy with history enabled.

   docker run --name LPS-76332 --detach -p 389:389 holatuwol/liferayissue:LPS-76332
   docker exec LPS-76332 ldapmodify -x -c -D 'cn=admin,cn=config' -w admin -f /postmodify.ldif
   

2. Start up Liferay and log in as the admin user
3. Navigate to Control Panel > Configuration > Instance Settings > LDAP
4. Under "General" enable "Enabled" and "Use LDAP Password Policy"
5. Under "Export" enable "Enable Export"
6. Under "Import" enable "Enable Import" and "Enable Import on Startup"
7. Under "Server" add a server with the following details
   1. Set the name to "localhost"
   2. Select the OpenLDAP radio button
   3. Change the Base DN to "dc=example,dc=org"
   4. Change the Principal to "cn=test,ou=people,dc=example,dc=org"
   5. Change the password to "test"
   6. Click on the "Test LDAP Connection" button
8. Test the LDAP user import
   1. Click on the "Test LDAP Users" button
9. Update the LDAP export configuration
   1. Change the Users DN to "ou=people,dc=example,dc=org"
   2. Change the User Default Object Classes to "top,person,organizationalPerson,inetOrgPerson"
   3. Set the Groups DN to blank
10. Save the configuration
11. Wait for the users to be imported or restart the server to trigger it
12. Sign in as [e-mail] with the password "test"
13. Navigate to My Account > Account Settings
14. Change the password to "test1"
15. Change the password to "test"

Expected Results
The password is not modified since it does not adhere to the password policy in LDAP (cannot reuse password). The user can only log in with the password "test1".

Actual Results
The password in the database is updated but the password in LDAP is not. The user can log in with either "test" or "test1".