RHSA-2021_2065
Vulnerability from csaf_redhat - Published: 2021-05-20 12:46 - Updated: 2024-11-15 11:48Summary
Red Hat Security Advisory: Red Hat Single Sign-On 7.4.7 security update on RHEL 8
Severity
Moderate
Notes
Topic: New Red Hat Single Sign-On 7.4.7 packages are now available for Red Hat Enterprise Linux 8.
Red Hat Product Security has rated this update as having a security impact of Moderate. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.
Details: Red Hat Single Sign-On 7.4 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 release of Red Hat Single Sign-On 7.4.7 serves as a replacement for Red Hat Single Sign-On 7.4.6, and includes bug fixes and enhancements, which are documented in the Release Notes document linked to in the References.
Security Fix(es):
* keycloak: Backchannel logout not working when Principal Type is set to Attribute Name for external SAML IDP (CVE-2021-3461)
* keycloak: Internationalized domain name (IDN) homograph attack to impersonate users (CVE-2021-3424)
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.
Terms of Use: This content is licensed under the Creative Commons Attribution 4.0 International License (https://creativecommons.org/licenses/by/4.0/). If you distribute this content, or a modified version of it, you must provide attribution to Red Hat Inc. and provide a link to the original.
A flaw was found in keycloak, where IDN homograph attacks are possible. This flaw allows a malicious user to register a name that already exists and then tricking an admin to grant extra privileges. The highest threat from this vulnerability is to integrity.
5.3 (Medium)
Affected products
Fixed
3 products
| Product | Identifier | Version | Remediation |
|---|---|---|---|
| Unresolved product id: 8Base-RHSSO-7.4:rh-sso7-keycloak-0:9.0.13-1.redhat_00006.1.el8sso.noarch | — |
Vendor Fix
fix
|
|
| Unresolved product id: 8Base-RHSSO-7.4:rh-sso7-keycloak-0:9.0.13-1.redhat_00006.1.el8sso.src | — |
Vendor Fix
fix
|
|
| Unresolved product id: 8Base-RHSSO-7.4:rh-sso7-keycloak-server-0:9.0.13-1.redhat_00006.1.el8sso.noarch | — |
Vendor Fix
fix
|
Threats
Impact
Low
A flaw was found in keycloak where keycloak may fail to logout user session if the logout request comes from external SAML identity provider and Principal Type is set to Attribute [Name].
7.1 (High)
Affected products
Fixed
3 products
| Product | Identifier | Version | Remediation |
|---|---|---|---|
| Unresolved product id: 8Base-RHSSO-7.4:rh-sso7-keycloak-0:9.0.13-1.redhat_00006.1.el8sso.noarch | — |
Vendor Fix
fix
|
|
| Unresolved product id: 8Base-RHSSO-7.4:rh-sso7-keycloak-0:9.0.13-1.redhat_00006.1.el8sso.src | — |
Vendor Fix
fix
|
|
| Unresolved product id: 8Base-RHSSO-7.4:rh-sso7-keycloak-server-0:9.0.13-1.redhat_00006.1.el8sso.noarch | — |
Vendor Fix
fix
|
Threats
Impact
Moderate
References
15 references
Acknowledgments
Kristian Klausen
TatraMed Software
Peter Mazán (peter.mazan@tatramed.sk)
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}
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Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.
Sightings
| Author | Source | Type | Date | Other |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
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