Vulnerability Description
A vulnerability was found in keycloak before 6.0.2. The X.509 authenticator supports the verification of client certificates through the CRL, where the CRL list can be obtained from the URL provided in the certificate itself (CDP) or through the separately configured path. The CRL are often available over the network through unsecured protocols ('http' or 'ldap') and hence the caller should verify the signature and possibly the certification path. Keycloak currently doesn't validate signatures on CRL, which can result in a possibility of various attacks like man-in-the-middle.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Redhat | Keycloak | < 6.0.2 |
| Redhat | Single Sign-On | 7.3 |
Related Weaknesses (CWE)
References
- http://www.securityfocus.com/bid/108748Third Party AdvisoryVDB Entry
- https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-3875Issue TrackingPatchVendor Advisory
- http://www.securityfocus.com/bid/108748Third Party AdvisoryVDB Entry
- https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-3875Issue TrackingPatchVendor Advisory
FAQ
What is CVE-2019-3875?
CVE-2019-3875 is a vulnerability with a CVSS score of 6.5 (MEDIUM). A vulnerability was found in keycloak before 6.0.2. The X.509 authenticator supports the verification of client certificates through the CRL, where the CRL list can be obtained from the URL provided i...
How severe is CVE-2019-3875?
CVE-2019-3875 has been rated MEDIUM with a CVSS base score of 6.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2019-3875?
Check the references section above for vendor advisories and patch information. Affected products include: Redhat Keycloak, Redhat Single Sign-On.