Vulnerability · Published Jan 25, 2022 · Assigned by redhat
CVE-2021-4133
High 8.8
In plain English
A high-severity incorrect authorization in Keycloak. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 1.4% (higher than 72% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Severity (CVSS NVD)8.8High
Exploit odds (30 days)1.4%top 27.9% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known
Official description
A flaw was found in Keycloak in versions from 12.0.0 and before 15.1.1 which allows an attacker with any existing user account to create new default user accounts via the administrative REST API even when new user registration is disabled.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Maven | org.keycloak:keycloak-services | 15.1.1 | GHSA-83x4-9cwr-5487 |
Affected products (as reported)
Weakness: CWE-863
References
- https://bugzilla.redhat.com/show_bug.cgi?id=2033602 x_refsource_MISC
- https://github.com/keycloak/keycloak/issues/9247 x_refsource_MISC
- https://github.com/keycloak/keycloak/security/advisories/GHSA-83x4-9cwr-5487 x_refsource_MISC
- https://www.oracle.com/security-alerts/cpuapr2022.html x_refsource_MISC