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CVE-2021-27215

9.8 · CRITICAL

An issue was discovered in genua genugate before 9.0 Z p19, 9.1.x through 9.6.x before 9.6 p7, and 10.x before 10.1 p4.

Published Mar 3, 2021CWE-306EPSS 2.35%

Overview

CVE-2021-27215 is a critical-severity vulnerability. It was published on March 3, 2021 and has a CVSS 3.1 base score of 9.8 (CRITICAL).

This vulnerability has a CVSS 3.1 base score of 9.8, rated CRITICAL. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

Technical description

An issue was discovered in genua genugate before 9.0 Z p19, 9.1.x through 9.6.x before 9.6 p7, and 10.x before 10.1 p4. The Web Interfaces (Admin, Userweb, Sidechannel) can use different methods to perform the authentication of a user. A specific authentication method during login does not check the provided data (when a certain manipulation occurs) and returns OK for any authentication request. This allows an attacker to login to the admin panel as a user of his choice, e.g., the root user (with highest privileges) or even a non-existing user.

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

Refkunde.genua.de/en/overview/genugate.htmlRefsec-consult.com/vulnerability-lab/advisory/authentication-bypass-genua-genugate/Refwww.genua.de/en/it-security-solutions/high-resistance-firewall-genugateRefkunde.genua.de/en/overview/genugate.htmlRefsec-consult.com/vulnerability-lab/advisory/authentication-bypass-genua-genugate/Refwww.genua.de/en/it-security-solutions/high-resistance-firewall-genugate

How CyberStrike helps

Frequently asked questions

What is CVE-2021-27215?

CVE-2021-27215 is a critical-severity vulnerability. It was published on March 3, 2021 and has a CVSS 3.1 base score of 9.8 (CRITICAL).

How severe is CVE-2021-27215?

This vulnerability has a CVSS 3.1 base score of 9.8, rated CRITICAL. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2021-27215?

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-2021-27215?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2021-27215 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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