It may be possible for a deactivated user to login when using uncommon configurations.
This only applies if any of the following are true:
jwt_config.enabled
configuration settingpassword_config.enabled
and password_config.localdb_enabled
configuration settings and a user's password is updated via an admin API after a user is deactivated.Note that the local password database is enabled by default, but it is uncommon to set a user's password after they've been deactivated.
Installations that are configured to only allow login via Single Sign-On (SSO) via CAS, SAML or OpenID Connect (OIDC); or via an external password provider (e.g. LDAP) are not affected.
If not using JSON Web Tokens, ensure that deactivated users do not have a password set. This list of users can be queried from PostgreSQL:
SELECT name FROM users WHERE password_hash IS NOT NULL AND deactivated = 1;
{ "nvd_published_at": "2023-06-06T19:15:11Z", "cwe_ids": [ "CWE-287" ], "severity": "MODERATE", "github_reviewed": true, "github_reviewed_at": "2023-06-06T16:40:42Z" }