A flaw was found in Keycloak before 13.0.0 where an external identity provider, after successful authentication, redirects to a Keycloak endpoint that accepts multiple invocations with the use of the same state parameter. This flaw allows a malicious user to perform replay attacks.
Weakness
A capture-replay flaw exists when the design of the product makes it possible for a malicious user to sniff network traffic and bypass authentication by replaying it to the server in question to the same effect as the original message (or with minor changes).
Affected Software
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| Keycloak | Redhat | * | 13.0.0 (excluding) |
| Red Hat Single Sign-On 7.4.6 | RedHat | * | |
| Red Hat Single Sign-On 7.4 for RHEL 6 | RedHat | rh-sso7-keycloak-0:9.0.12-1.redhat_00001.1.el6sso | * |
| Red Hat Single Sign-On 7.4 for RHEL 7 | RedHat | rh-sso7-keycloak-0:9.0.12-1.redhat_00001.1.el7sso | * |
| Red Hat Single Sign-On 7.4 for RHEL 8 | RedHat | rh-sso7-keycloak-0:9.0.12-1.redhat_00001.1.el8sso | * |
Potential Mitigations
Related Attack Patterns
- https://cwe.mitre.org/data/definitions/102.html
- https://cwe.mitre.org/data/definitions/509.html
- https://cwe.mitre.org/data/definitions/555.html
- https://cwe.mitre.org/data/definitions/561.html
- https://cwe.mitre.org/data/definitions/60.html
- https://cwe.mitre.org/data/definitions/644.html
- https://cwe.mitre.org/data/definitions/645.html
- https://cwe.mitre.org/data/definitions/652.html
- https://cwe.mitre.org/data/definitions/701.html
- https://cwe.mitre.org/data/definitions/94.html