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CVE-2023-6291

7.1 · HIGH

A flaw was found in the redirect_uri validation logic in Keycloak.

Published Jan 26, 2024CWE-601EPSS 0.95%

Overview

CVE-2023-6291 is a high-severity vulnerability. It was published on January 26, 2024 and has a CVSS 3.1 base score of 7.1 (HIGH).

This vulnerability has a CVSS 3.1 base score of 7.1, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

Technical description

A flaw was found in the redirect_uri validation logic in Keycloak. This issue may allow a bypass of otherwise explicitly allowed hosts. A successful attack may lead to an access token being stolen, making it possible for the attacker to impersonate other users.

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References

Refaccess.redhat.com/errata/RHSA-2023:7854Refaccess.redhat.com/errata/RHSA-2023:7855Refaccess.redhat.com/errata/RHSA-2023:7856Refaccess.redhat.com/errata/RHSA-2023:7857Refaccess.redhat.com/errata/RHSA-2023:7858Refaccess.redhat.com/errata/RHSA-2023:7860Refaccess.redhat.com/errata/RHSA-2023:7861Refaccess.redhat.com/errata/RHSA-2024:0798Refaccess.redhat.com/errata/RHSA-2024:0799Refaccess.redhat.com/errata/RHSA-2024:0800

How CyberStrike helps

Frequently asked questions

What is CVE-2023-6291?

CVE-2023-6291 is a high-severity vulnerability. It was published on January 26, 2024 and has a CVSS 3.1 base score of 7.1 (HIGH).

How severe is CVE-2023-6291?

This vulnerability has a CVSS 3.1 base score of 7.1, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2023-6291?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2023-6291?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2023-6291 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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