Vulnerability in Red Hat Keycloak
CVE-2020-1758
A flaw was found in Keycloak in versions before 10.0.0, where it does not perform the TLS hostname verification while sending emails using the SMTP server. This flaw allows an attacker to perform a man-in-the-middle (MITM) attack.
EPSS: 0.009 (56.2th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:N/A:N.
Affected products
- Red Hat Keycloak — versions keycloak versions before 10.0.0
- Redhat Keycloak
- Redhat Openstack — versions 10
Weakness classification (CWE)
References
- secalert@redhat.com (x_refsource_CONFIRM, Issue Tracking, Vendor Advisory)
- secalert@redhat.com (Permissions Required, x_refsource_MISC, Vendor Advisory)
Frequently asked questions
- What is CVE-2020-1758?
- CVE-2020-1758 is a medium-severity vulnerability in Red Hat Keycloak, classified under Improper Validation of Certificate with Host Mismatch. CVSS score: 5.3/10. Published 2020-05-15.
- How severe is CVE-2020-1758?
- Medium severity. CVSS v3 base score is 5.3 out of 10.