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Red Hat Enterprise Linux 7: RHSA-2021:5218-01 Critical: Auth Issue Found

red hat
Calendar Grey December 20, 2021
Dist Redhat Esm H88
New release for Red Hat Single Sign-On 7.5, fixing a severe user management permissions flaw on RHEL 7.
A security update is now available for Red Hat Single Sign-On 7.5 on Red Hat Enterprise Linux 7

Solution

Before applying this update, make sure all previously released errata relevant to your system have been applied.

For details on how to apply this update, refer to:

https://access.redhat.com/articles/11258

Summary

Red Hat Single Sign-On 7.5 is a standalone server, based on the Keycloak project, that provides authentication and standards-based single sign-on capabilities for web and mobile applications.
This is an asynchronous patch for Red Hat Single Sign-On 7.5, and includes one security fix.
Security Fix:
* keycloak: Incorrect authorization allows unpriviledged users to create other users (CVE-2021-4133)
For more details about the security issue(s), including the impact, a CVSS score, and other related information, refer to the CVE page(s) listed in the References section.

Topics%20covered

Topics Covered

security advisory Red Hat Enterprise Linux important authentication fix Keycloak Red Hat Single Sign-On user issue

References

https://access.redhat.com/security/cve/CVE-2021-4133 https://access.redhat.com/security/updates/classification#important https://docs.redhat.com/en/documentation/red_hat_single_sign-on/7.5

Package List

Red Hat Single Sign-On 7.5 for RHEL 7 Server:
Source: rh-sso7-keycloak-15.0.2-3.redhat_00002.1.el7sso.src.rpm
noarch: rh-sso7-keycloak-15.0.2-3.redhat_00002.1.el7sso.noarch.rpm rh-sso7-keycloak-server-15.0.2-3.redhat_00002.1.el7sso.noarch.rpm
These packages are GPG signed by Red Hat for security. Our key and details on how to verify the signature are available from https://access.redhat.com/security/team/key


Severity
important
Lowest
Low
Medium
High
Critical

Advisory ID: RHSA-2021:5218-01
Product: Red Hat Single Sign-On
Advisory URL: https://access.redhat.com/errata/RHSA-2021:5218
Issue date: 2021-12-20

Topic

A security update is now available for Red Hat Single Sign-On 7.5 on RedHat Enterprise Linux 7.Red Hat Product Security has rated this update as having a security impactof Important. A Common Vulnerability Scoring System (CVSS) base score,which gives a detailed severity rating, is available for each vulnerabilityfrom the CVE link(s) in the References section.

Topics%20covered

Topics Covered

security advisory Red Hat Enterprise Linux important authentication fix Keycloak Red Hat Single Sign-On user issue

Relevant Releases Architectures

Red Hat Single Sign-On 7.5 for RHEL 7 Server - noarch

Bugs Fixed

2033602 - CVE-2021-4133 Keycloak: Incorrect authorization allows unpriviledged users to create other users

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