Improper Authentication Affecting rh-sso7-keycloak-server package, versions <0:9.0.13-1.redhat_00006.1.el7sso


Severity

Recommended
0.0
medium
0
10

Based on Red Hat Enterprise Linux security rating.

Threat Intelligence

EPSS
0.08% (37th percentile)

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  • Snyk IDSNYK-RHEL7-RHSSO7KEYCLOAKSERVER-4454373
  • published26 Mar 2023
  • disclosed8 Mar 2021

Introduced: 8 Mar 2021

CVE-2021-3424  (opens in a new tab)
CWE-287  (opens in a new tab)

How to fix?

Upgrade RHEL:7 rh-sso7-keycloak-server to version 0:9.0.13-1.redhat_00006.1.el7sso or higher.
This issue was patched in RHSA-2021:2064.

NVD Description

Note: Versions mentioned in the description apply only to the upstream rh-sso7-keycloak-server package and not the rh-sso7-keycloak-server package as distributed by RHEL. See How to fix? for RHEL:7 relevant fixed versions and status.

A flaw was found in keycloak as shipped in Red Hat Single Sign-On 7.4 where IDN homograph attacks are possible. A malicious user can register himself with a name already registered and trick admin to grant him extra privileges.

CVSS Scores

version 3.1