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5.9
CVSSv3

CVE-2020-1758

Published: 15/05/2020 Updated: 07/11/2023
CVSS v2 Base Score: 4.3 | Impact Score: 2.9 | Exploitability Score: 8.6
CVSS v3 Base Score: 5.9 | Impact Score: 3.6 | Exploitability Score: 2.2
VMScore: 383
Vector: AV:N/AC:M/Au:N/C:P/I:N/A:N
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Vulnerability Summary

A flaw was found in Keycloak in versions prior to 10.0.0, where it does not perform the TLS hostname verification while sending emails using the SMTP server. This flaw allows an malicious user to perform a man-in-the-middle (MITM) attack.

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Vendor Advisories

Red Hat: Important: Red Hat Single Sign-On 7.3.8 security update on RHEL 6
Synopsis Important: Red Hat Single Sign-On 738 security update on RHEL 6 Type/Severity Security Advisory: Important Topic New Red Hat Single Sign-On 738 packages are now available for Red Hat Enterprise Linux 6Red Hat Product Security has rated this update as having a security impact of Important A Co ...
Red Hat: Important: Red Hat Single Sign-On 7.3.8 security update on RHEL 7
Synopsis Important: Red Hat Single Sign-On 738 security update on RHEL 7 Type/Severity Security Advisory: Important Topic New Red Hat Single Sign-On 738 packages are now available for Red Hat Enterprise Linux 7Red Hat Product Security has rated this update as having a security impact of Important A Co ...
Red Hat: Important: Red Hat Single Sign-On 7.3.8 security update on RHEL 8
Synopsis Important: Red Hat Single Sign-On 738 security update on RHEL 8 Type/Severity Security Advisory: Important Topic New Red Hat Single Sign-On 738 packages are now available for Red HatEnterprise Linux 8Red Hat Product Security has rated this update as having a security impact ofImportant A Comm ...
Red Hat: Important: Red Hat Single Sign-On 7.3.8 security update
Synopsis Important: Red Hat Single Sign-On 738 security update Type/Severity Security Advisory: Important Topic A security update is now available for Red Hat Single Sign-On 73 from the Customer PortalRed Hat Product Security has rated this update as having a security impact of Important A Common Vulne ...

References

CWE-295https://issues.redhat.com/browse/KEYCLOAK-13285https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2020-1758https://nvd.nist.govhttps://access.redhat.com/errata/RHSA-2020:2106
CVSSv3
CVSSv2
CVSSv3
VMScore
Recommendations:
CVE-2024-27322cross-site request forgeryunauthorizedCVE-2024-33925reflected XSSCVE-2023-51580CVE-2023-51579CVE-2015-2051CVE-2023-51609
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