Vulnerability Monitor

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CVE-2020-27826

A flaw was found in Keycloak before version 12.0.0 where it is possible to update the user's metadata attributes using Account REST API. This flaw allows an attacker to change its own NameID attribute to impersonate the admin user for any particular application.

Published

2021-05-28T11:15:07.670

Last Modified

2024-11-21T05:21:53.147

Status

Modified

Source

[email protected]

Severity

CVSSv3.1: 4.2 (MEDIUM)

CVSSv2 Vector

AV:N/AC:M/Au:S/C:P/I:P/A:N

  • Access Vector: NETWORK
  • Access Complexity: MEDIUM
  • Authentication: SINGLE
  • Confidentiality Impact: PARTIAL
  • Integrity Impact: PARTIAL
  • Availability Impact: NONE
Exploitability Score

6.8

Impact Score

4.9

Weaknesses
  • Type: Primary
    CWE-250
Affected Vendors & Products
Type Vendor Product Version/Range Vulnerable?
Application redhat keycloak < 12.0.0 Yes
Application redhat single_sign-on - Yes
Application redhat single_sign-on 7.4 Yes
Application redhat single_sign-on 7.4.4 Yes
References