Headline
RHSA-2023:3885: Red Hat Security Advisory: Red Hat Single Sign-On 7.6.4 security update on RHEL 9
New Red Hat Single Sign-On 7.6.4 packages are now available for Red Hat Enterprise Linux 9. Red Hat Product Security has rated this update as having a security impact of Important. 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.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.
Related CVEs:
- CVE-2022-4361: Keycloak, an open-source identity and access management solution, has a cross-site scripting (XSS) vulnerability in the SAML or OIDC providers. The vulnerability can allow an attacker to execute malicious scripts by setting the AssertionConsumerServiceURL value or the redirect_uri.
- CVE-2023-1108: A flaw was found in undertow. This issue makes achieving a denial of service possible due to an unexpected handshake status updated in SslConduit, where the loop never terminates.
- CVE-2023-1664: A flaw was found in Keycloak. This flaw depends on a non-default configuration “Revalidate Client Certificate” to be enabled and the reverse proxy is not validating the certificate before Keycloak. Using this method an attacker may choose the certificate which will be validated by the server. If this happens and the KC_SPI_TRUSTSTORE_FILE_FILE variable is missing/misconfigured, any trustfile may be accepted with the logging information of "Cannot validate client certificate trust: Truststore not available". This may not impact availability, but consumer applications Integrity or Confidentiality. Considering the environment is correctly set, this flaw is avoidable by configuring the server.
- CVE-2023-2422: No description is available for this CVE.
- CVE-2023-2585: No description is available for this CVE.
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Issued:
2023-06-27
Updated:
2023-06-27
RHSA-2023:3885 - Security Advisory
- Overview
- Updated Packages
Synopsis
Important: Red Hat Single Sign-On 7.6.4 security update on RHEL 9
Type/Severity
Security Advisory: Important
Red Hat Insights patch analysis
Identify and remediate systems affected by this advisory.
View affected systems
Topic
New Red Hat Single Sign-On 7.6.4 packages are now available for Red Hat Enterprise Linux 9.
Red Hat Product Security has rated this update as having a security impact of Important. 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.
Description
Red Hat Single Sign-On 7.6 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 7.6.4 on RHEL 9 serves as a replacement for Red Hat Single Sign-On 7.6.3, and includes bug fixes and enhancements, which are documented in the Release Notes document linked to in the References.
Security Fix(es):
- keycloak: Cross-site scripting when validating URI-schemes on SAML and OIDC (CVE-2022-4361)
- undertow: Infinite loop in SslConduit during close (CVE-2023-1108)
- keycloak: oauth client impersonation (CVE-2023-2422)
- keycloak: Untrusted Certificate Validation (CVE-2023-1664)
- keycloak: client access via device auth request spoof (CVE-2023-2585)
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.
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
Affected Products
- Red Hat Single Sign-On 7.6 for RHEL 9 x86_64
Fixes
- BZ - 2151618 - CVE-2022-4361 Keycloak | RHSSO: XSS due to lax URI scheme validation
- BZ - 2174246 - CVE-2023-1108 Undertow: Infinite loop in SslConduit during close
- BZ - 2182196 - CVE-2023-1664 keycloak: Untrusted Certificate Validation
- BZ - 2191668 - CVE-2023-2422 keycloak: oauth client impersonation
- BZ - 2196335 - CVE-2023-2585 keycloak: client access via device auth request spoof
CVEs
- CVE-2022-4361
- CVE-2023-1108
- CVE-2023-1664
- CVE-2023-2422
- CVE-2023-2585
References
- https://access.redhat.com/security/updates/classification/#important
- https://access.redhat.com/articles/11258
Red Hat Single Sign-On 7.6 for RHEL 9
SRPM
rh-sso7-keycloak-18.0.8-1.redhat_00001.1.el9sso.src.rpm
SHA-256: 4db0976aac7727f1a980db3e3054dc944fd499da99782695f4cc1c7110a0862b
x86_64
rh-sso7-keycloak-18.0.8-1.redhat_00001.1.el9sso.noarch.rpm
SHA-256: 4ca6eb425301cc912cea75b2ac72c11c4450a579efd2d2f54db30ee5c461f827
rh-sso7-keycloak-server-18.0.8-1.redhat_00001.1.el9sso.noarch.rpm
SHA-256: a60b70c0f1c9a8169eed9a6ee55973327b5523f9613d70410cae6b1a43320a81
The Red Hat security contact is [email protected]. More contact details at https://access.redhat.com/security/team/contact/.
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A flaw was found in Keycloak. This flaw depends on a non-default configuration "Revalidate Client Certificate" to be enabled and the reverse proxy is not validating the certificate before Keycloak. Using this method an attacker may choose the certificate which will be validated by the server. If this happens and the KC_SPI_TRUSTSTORE_FILE_FILE variable is missing/misconfigured, any trustfile may be accepted with the logging information of "Cannot validate client certificate trust: Truststore not available". This may not impact availability as the attacker would have no access to the server, but consumer applications Integrity or Confidentiality may be impacted considering a possible access to them. Considering the environment is correctly set to use "Revalidate Client Certificate" this flaw is avoidable.
A flaw was found in Keycloak. This flaw depends on a non-default configuration "Revalidate Client Certificate" to be enabled and the reverse proxy is not validating the certificate before Keycloak. Using this method an attacker may choose the certificate which will be validated by the server. If this happens and the KC_SPI_TRUSTSTORE_FILE_FILE variable is missing/misconfigured, any trustfile may be accepted with the logging information of "Cannot validate client certificate trust: Truststore not available". This may not impact availability as the attacker would have no access to the server, but consumer applications Integrity or Confidentiality may be impacted considering a possible access to them. Considering the environment is correctly set to use "Revalidate Client Certificate" this flaw is avoidable.
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Red Hat Security Advisory 2023-1514-01 - Red Hat JBoss Enterprise Application Platform 7 is a platform for Java applications based on the WildFly application runtime. This release of Red Hat JBoss Enterprise Application Platform 7.4.10 serves as a replacement for Red Hat JBoss Enterprise Application Platform 7.4.9, and includes bug fixes and enhancements. See the Red Hat JBoss Enterprise Application Platform 7.4.10 Release Notes for information about the most significant bug fixes and enhancements included in this release. Issues addressed include code execution, denial of service, deserialization, and information leakage vulnerabilities.
Red Hat Security Advisory 2023-1513-01 - Red Hat JBoss Enterprise Application Platform 7 is a platform for Java applications based on the WildFly application runtime. This release of Red Hat JBoss Enterprise Application Platform 7.4.10 serves as a replacement for Red Hat JBoss Enterprise Application Platform 7.4.9, and includes bug fixes and enhancements. See the Red Hat JBoss Enterprise Application Platform 7.4.10 Release Notes for information about the most significant bug fixes and enhancements included in this release. Issues addressed include code execution, denial of service, deserialization, and information leakage vulnerabilities.
Red Hat Security Advisory 2023-1512-01 - Red Hat JBoss Enterprise Application Platform 7 is a platform for Java applications based on the WildFly application runtime. This release of Red Hat JBoss Enterprise Application Platform 7.4.10 serves as a replacement for Red Hat JBoss Enterprise Application Platform 7.4.9 and includes bug fixes and enhancements. See the Red Hat JBoss Enterprise Application Platform 7.4.10 Release Notes for information about the most significant bug fixes and enhancements included in this release. Issues addressed include code execution, denial of service, deserialization, and information leakage vulnerabilities.
Red Hat Security Advisory 2023-1184-01 - Red Hat JBoss Enterprise Application Platform 7 is a platform for Java applications based on the WildFly application runtime. This asynchronous patch is a security update for Red Hat JBoss Enterprise Application Platform 7.4.
Red Hat Security Advisory 2023-1185-01 - Red Hat JBoss Enterprise Application Platform 7 is a platform for Java applications based on the WildFly application runtime. This asynchronous patch is a security update for Red Hat JBoss Enterprise Application Platform 7.4.
A security update is now available for Red Hat JBoss Enterprise Application Platform 7.4. Red Hat Product Security has rated this update as having a security impact of Important. 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.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. Related CVEs: * CVE-2023-1108: A flaw was found in undertow. This issue makes achieving a denial of service possible due to an unexpected handshake status updated in SslConduit, where the loop never terminates.