Vulnerability in Red Hat Build Of Quarkus
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.
Vulnerability class: Improper Certificate Validation
EPSS: 0.004 (36.2th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N.
Affected products
- Redhat Build_of_quarkus
- Redhat Jboss_a-mq — versions 7
- Redhat Keycloak
- Redhat Migration_toolkit_for_runtimes
- Redhat Single_sign-on — versions 7.0
- N/a Keycloak — versions NA
Weakness classification (CWE)
Public proof-of-concept exploits
References
- secalert@redhat.com (Issue Tracking, Vendor Advisory)
Frequently asked questions
- What is CVE-2023-1664?
- CVE-2023-1664 is a medium-severity vulnerability in Red Hat Build Of Quarkus, classified under Improper Certificate Validation. CVSS score: 6.5/10. Published 2023-05-26.
- How severe is CVE-2023-1664?
- Medium severity. CVSS v3 base score is 6.5 out of 10.
- Is CVE-2023-1664 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.