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CVE-2020-15123

9.3 · CRITICAL

In codecov (npm package) before version 3.7.1 the upload method has a command injection vulnerability.

Published Jul 20, 2020CWE-78EPSS 3.81%

Overview

CVE-2020-15123 is a critical-severity vulnerability. It was published on July 20, 2020 and has a CVSS 3.1 base score of 9.3 (CRITICAL).

This vulnerability has a CVSS 3.1 base score of 9.3, rated CRITICAL. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

Technical description

In codecov (npm package) before version 3.7.1 the upload method has a command injection vulnerability. Clients of the codecov-node library are unlikely to be aware of this, so they might unwittingly write code that contains a vulnerability. A similar CVE (CVE-2020-7597 for GHSA-5q88-cjfq-g2mh) was issued but the fix was incomplete. It only blocked &, and command injection is still possible using backticks instead to bypass the sanitizer. The attack surface is low in this case. Particularly in the standard use of codecov, where the module is used directly in a build pipeline, not built against as a library in another application that may supply malicious input and perform command injection.

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/advisories/GHSA-5q88-cjfq-g2mhGitHubgithub.com/codecov/codecov-node/commit/c0711c656686e902af2cd92d6aecc8074de4d83dGitHubgithub.com/codecov/codecov-node/pull/180GitHubgithub.com/codecov/codecov-node/security/advisories/GHSA-xp63-6vf5-xf3vReflgtm.com/query/7714424068617023832GitHubgithub.com/advisories/GHSA-5q88-cjfq-g2mhGitHubgithub.com/codecov/codecov-node/commit/c0711c656686e902af2cd92d6aecc8074de4d83dGitHubgithub.com/codecov/codecov-node/pull/180GitHubgithub.com/codecov/codecov-node/security/advisories/GHSA-xp63-6vf5-xf3vReflgtm.com/query/7714424068617023832

How CyberStrike helps

Frequently asked questions

What is CVE-2020-15123?

CVE-2020-15123 is a critical-severity vulnerability. It was published on July 20, 2020 and has a CVSS 3.1 base score of 9.3 (CRITICAL).

How severe is CVE-2020-15123?

This vulnerability has a CVSS 3.1 base score of 9.3, 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-2020-15123?

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-2020-15123?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2020-15123 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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