It was found that SAML authentication in Keycloak 3.4.3.Final incorrectly authenticated expired certificates. A malicious user could use this to access unauthorized data or possibly conduct further attacks.
The MITRE CVE dictionary describes this issue as:
Find out more about CVE-2018-10894 from the MITRE CVE dictionary dictionary and NIST NVD.
| CVSS3 Base Score | 5.4 |
|---|---|
| CVSS3 Base Metrics | CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N |
| Attack Vector | Network |
| Attack Complexity | Low |
| Privileges Required | Low |
| User Interaction | None |
| Scope | Unchanged |
| Confidentiality | Low |
| Integrity Impact | Low |
| Availability Impact | None |
| Platform | Errata | Release Date |
|---|---|---|
| Red Hat Single Sign-On 7.1 for RHEL 7 Server (rh-sso7-keycloak) | RHSA-2018:3593 | 2018-11-13 |
| Red Hat Single Sign-On 7.2 | RHSA-2018:3595 | 2018-11-13 |
| Red Hat Single Sign-On 7.1 for RHEL 6 Server (rh-sso7-keycloak) | RHSA-2018:3592 | 2018-11-13 |
| Platform | Package | State |
|---|---|---|
| Red Hat Single Sign-On 7 | server | Affected |
Vulmon