Headline
GHSA-gmrm-8fx4-66x7: Keycloak: Leak of configured LDAP bind credentials
A vulnerability was found in Keycloak. The LDAP testing endpoint allows changing the Connection URL independently without re-entering the currently configured LDAP bind credentials. This flaw allows an attacker with admin access (permission manage-realm) to change the LDAP host URL (“Connection URL”) to a machine they control. The Keycloak server will connect to the attacker’s host and try to authenticate with the configured credentials, thus leaking them to the attacker. As a consequence, an attacker who has compromised the admin console or compromised a user with sufficient privileges can leak domain credentials and attack the domain.
- GitHub Advisory Database
- GitHub Reviewed
- CVE-2024-5967
Keycloak: Leak of configured LDAP bind credentials
Low severity GitHub Reviewed Published Jun 18, 2024 to the GitHub Advisory Database • Updated Jun 18, 2024
Package
maven org.keycloak:keycloak-core (Maven)
Affected versions
<= 24.0.5
A vulnerability was found in Keycloak. The LDAP testing endpoint allows changing the Connection URL independently without re-entering the currently configured LDAP bind credentials. This flaw allows an attacker with admin access (permission manage-realm) to change the LDAP host URL (“Connection URL”) to a machine they control. The Keycloak server will connect to the attacker’s host and try to authenticate with the configured credentials, thus leaking them to the attacker. As a consequence, an attacker who has compromised the admin console or compromised a user with sufficient privileges can leak domain credentials and attack the domain.
References
- https://nvd.nist.gov/vuln/detail/CVE-2024-5967
- https://access.redhat.com/security/cve/CVE-2024-5967
- https://bugzilla.redhat.com/show_bug.cgi?id=2292200
Published to the GitHub Advisory Database
Jun 18, 2024
Last updated
Jun 18, 2024
Related news
### Impact The LDAP testing endpoint allows to change the Connection URL independently of and without having to re-enter the currently configured LDAP bind credentials. An attacker with admin access (permission manage-realm) can change the LDAP host URL ("Connection URL") to a machine they control. The Keycloak server will connect to the attacker's host and try to authenticate with the configured credentials, thus leaking them to the attacker. As a consequence, an attacker who has compromised the admin console/compromised a user with sufficient privileges can leak domain credentials and can now attack the domain. ### Acknowledgements Special thanks to Simon Wessling for reporting this issue and helping us improve our project