CVE-2023-3597: Auth Bypass (CVSS 5)

Description

A flaw was found in Keycloak, where it does not correctly validate its client step-up authentication in org.keycloak.authentication. This flaw allows a remote user authenticated with a password to register a false second authentication factor along with an existing one and bypass authentication.

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CVSS v3.1 Score

5.0

MEDIUM

CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:L

Weakness Type (CWE)

CWE-287 Improper Authentication

References

Other References

https://access.redhat.com/errata/RHSA-2024:1866 https://access.redhat.com/errata/RHSA-2024:1867 https://access.redhat.com/errata/RHSA-2024:1868 https://access.redhat.com/security/cve/CVE-2023-3597 https://bugzilla.redhat.com/show_bug.cgi?id=2221760 https://access.redhat.com/errata/RHSA-2024:1867 https://access.redhat.com/errata/RHSA-2024:1868 https://access.redhat.com/security/cve/CVE-2023-3597 https://bugzilla.redhat.com/show_bug.cgi?id=2221760

Frequently Asked Questions

What is CVE-2023-3597? +

A flaw was found in Keycloak, where it does not correctly validate its client step-up authentication in org.keycloak.authentication. This flaw allows a remote user authenticated with a password to register a false second authentication factor along with an existing one and bypass authentication. It has a CVSS v3.1 base score of 5.0 (MEDIUM).

How severe is CVE-2023-3597? +

CVE-2023-3597 has a CVSS v3.1 score of 5.0 out of 10, rated MEDIUM. This is a medium-severity vulnerability that should be remediated as part of regular maintenance.

How do I check if I'm vulnerable to CVE-2023-3597? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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CVE-2023-3597