CVE-2021-4133

Aliases:GHSA-83x4-9cwr-5487
Advisory lineage Upstream: 0 Downstream: 4
Modified
Published: 25 Jan 2022, 19:11
Last modified:03 Aug 2024, 17:16

Vulnerability Summary

Overall Risk (default)
medium
35/100
CVSS Score
8.8 HIGH
v3.1 (nvd)
EPSS Score
0.43% LOW
0% probability +0.08%
KEV
Not listed
Ransomware
No reports
Public exploits
None found
Dark Web
Not detected

Timeline

25 Jan 2022, 19:11
Published
Vulnerability first disclosed
03 Aug 2024, 17:16
Last Modified
Vulnerability information updated

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.

CVSS Metrics

  • v3.1•HIGH•Score: 8.8CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
  • v2.0•MEDIUM•Score: 6.5AV:N/AC:L/Au:S/C:P/I:P/A:P

EPSS Trends

Current EPSS score: 0.43%• Percentile: 63%

Techniques & Countermeasures

  • CWE-863•Incorrect Authorization

    The product performs an authorization check when an actor attempts to access a resource or perform an action, but it does not correctly perform the check.

Affected Systems

  • org.keycloak•keycloak-services

    < 15.1.1

  • redhat•keycloak

    ≥ 12.0.0, < 15.1.1

References (6)