What it is about

Keycloak ermöglicht Single Sign-On mit Identity and Access Management für moderne Anwendungen und Dienste. Ein entfernter, authentisierter Angreifer kann eine Schwachstelle in Keycloak ausnutzen, um Administratorrechte zu erlangen.

Under what conditions?

Over the network, but only with valid access (login required), for example with stolen credentials or as an insider.

What can happen in the worst case

An attacker could use the vulnerability to

• Administratorrechte zu erlangen

Am I affected?

Affected according to the BSI:

• Open Source Keycloak

The installed version is usually shown under “Help → About” or in the device’s admin interface.

What helps?

According to the BSI there is no update yet. The vendor notices below name interim protective measures, if any.

Is the vulnerability already being exploited?

None of the CVEs is in the CISA catalogue of exploited vulnerabilities. That does not mean there are no attacks, only that none are documented.