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CVE-2021-21243

10.0 · CRITICAL

OneDev is an all-in-one devops platform.

Published Jan 15, 2021CWE-74EPSS 54.49%

Overview

CVE-2021-21243 is a critical-severity vulnerability. It was published on January 15, 2021 and has a CVSS 3.1 base score of 10.0 (CRITICAL).

This vulnerability has a CVSS 3.1 base score of 10.0, rated CRITICAL. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

Technical description

OneDev is an all-in-one devops platform. In OneDev before version 4.0.3, a Kubernetes REST endpoint exposes two methods that deserialize untrusted data from the request body. These endpoints do not enforce any authentication or authorization checks. This issue may lead to pre-auth RCE. This issue was fixed in 4.0.3 by not using deserialization at KubernetesResource side.

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

GitHubgithub.com/theonedev/onedev/commit/9637fc8fa461c5777282a0021c3deb1e7a48f137GitHubgithub.com/theonedev/onedev/security/advisories/GHSA-9mmq-fm8c-q4fvGitHubgithub.com/theonedev/onedev/commit/9637fc8fa461c5777282a0021c3deb1e7a48f137GitHubgithub.com/theonedev/onedev/security/advisories/GHSA-9mmq-fm8c-q4fv

How CyberStrike helps

Frequently asked questions

What is CVE-2021-21243?

CVE-2021-21243 is a critical-severity vulnerability. It was published on January 15, 2021 and has a CVSS 3.1 base score of 10.0 (CRITICAL).

How severe is CVE-2021-21243?

This vulnerability has a CVSS 3.1 base score of 10.0, 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-2021-21243?

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-2021-21243?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2021-21243 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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