Bugzilla – Bug 1211784
VUL-0: CVE-2023-1664: keycloak: Untrusted Certificate Validation
Last modified: 2024-04-23 11:11:01 UTC
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 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. References: http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2023-1664 https://bugzilla.redhat.com/show_bug.cgi?id=2182196&comment#0 https://bugzilla.redhat.com/show_bug.cgi?id=2182196 https://www.cve.org/CVERecord?id=CVE-2023-1664
The package lives here https://build.opensuse.org/package/show/Java:binaries/keycloak and the version there is the repackaged 24.0.2 which is having this one fixed. I don't see it anywhere in backports, so most likely it is not there. Reassigning to security to know what to do: close or not to close.