Medium [CVE-2023-6717] Keycloak: xss via assertion consumer service url in saml post-binding flow
This medium-severity Red Hat Linux advisory covers CVE-2023-6717 affecting Red Hat build of Keycloak 22, RHOSS-1.33-RHEL-8, Red Hat build of Apicurio Registry 2.
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Summary
A flaw was found in the SAML client registration in Keycloak that could allow an administrator to register malicious JavaScript URIs as Assertion Consumer Service POST Binding URLs (ACS), posing a Cross-Site Scripting (XSS) risk.
This issue may allow a malicious admin in one realm or a client with registration access to target users in different realms or applications, executing arbitrary JavaScript in their contexts upon form submission. This can enable unauthorized access and harmful actions, compromising the confidentiality, integrity, and availability of the complete KC instance.
Affected products named by the advisory: Red Hat build of Keycloak 22; RHOSS-1.33-RHEL-8; Red Hat build of Apicurio Registry 2; Red Hat Data Grid 8; and 6 more.
Affected products named by the advisory: Red Hat Decision Manager 7; Red Hat Fuse 7; Red Hat JBoss Data Grid 7; Red Hat OpenShift GitOps; and 2 more.
Affected products named by the advisory: Red Hat Process Automation 7; Red Hat Single Sign-On 7.
- before 22.0.10
- 24.0.0 before 24.0.3
Official advisory · high-confidence parse· fetched 2 hours ago·verify at source
- 22.0.10
- 24.0.3
Official advisory · high-confidence parse· fetched 2 hours ago·verify at source
Mitigation checklist
- This can enable unauthorized access and harmful actions, compromising the confidentiality, integrity, and availability of the complete KC instance.
Official advisory · high-confidence parse· fetched 2 hours ago·verify at source
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