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CVE-2021-35473

9.1 · CRITICAL

An issue was discovered in LemonLDAP::NG before 2.0.12.

Published Nov 10, 2024CWE-613EPSS 0.41%

Overview

CVE-2021-35473 is a critical-severity vulnerability. It was published on November 10, 2024 and has a CVSS 3.1 base score of 9.1 (CRITICAL).

This vulnerability has a CVSS 3.1 base score of 9.1, 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 LemonLDAP::NG before 2.0.12. There is a missing expiration check in the OAuth2.0 handler, i.e., it does not verify access token validity. An attacker can use a expired access token from an OIDC client to access the OAuth2 handler The earliest affected version is 2.0.4.

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

Refgitlab.ow2.org/lemonldap-ng/lemonldap-ng/-/issues/2549Refgitlab.ow2.org/lemonldap-ng/lemonldap-ng/-/tags

How CyberStrike helps

Frequently asked questions

What is CVE-2021-35473?

CVE-2021-35473 is a critical-severity vulnerability. It was published on November 10, 2024 and has a CVSS 3.1 base score of 9.1 (CRITICAL).

How severe is CVE-2021-35473?

This vulnerability has a CVSS 3.1 base score of 9.1, 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-2021-35473?

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-2021-35473?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2021-35473 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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