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CVE-2024-52587

8.8 · HIGH

StepSecurity's Harden-Runner provides network egress filtering and runtime security for GitHub-hosted and self-hosted runners.

Published Nov 18, 2024CWE-78EPSS 2.76%

Overview

CVE-2024-52587 is a high-severity vulnerability. It was published on November 18, 2024 and has a CVSS 3.1 base score of 8.8 (HIGH).

This vulnerability has a CVSS 3.1 base score of 8.8, rated HIGH. It can be exploited remotely over the network. Some level of privileges is required for exploitation.

Technical description

StepSecurity's Harden-Runner provides network egress filtering and runtime security for GitHub-hosted and self-hosted runners. Versions of step-security/harden-runner prior to v2.10.2 contain multiple command injection weaknesses via environment variables that could potentially be exploited under specific conditions. However, due to the current execution order of pre-steps in GitHub Actions and the placement of harden-runner as the first step in a job, the likelihood of exploitation is low as the Harden-Runner action reads the environment variable during the pre-step stage. There are no known exploits at this time. Version 2.10.2 contains a patch.

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/step-security/harden-runner/blob/951b48540b429070694bc8abd82fd6901eb123ca/src/arc-runner.ts#L40-L44GitHubgithub.com/step-security/harden-runner/blob/951b48540b429070694bc8abd82fd6901eb123ca/src/arc-runner.ts#L53GitHubgithub.com/step-security/harden-runner/blob/951b48540b429070694bc8abd82fd6901eb123ca/src/arc-runner.ts#L57GitHubgithub.com/step-security/harden-runner/blob/951b48540b429070694bc8abd82fd6901eb123ca/src/arc-runner.ts#L61GitHubgithub.com/step-security/harden-runner/blob/951b48540b429070694bc8abd82fd6901eb123ca/src/setup.ts#L169GitHubgithub.com/step-security/harden-runner/blob/951b48540b429070694bc8abd82fd6901eb123ca/src/setup.ts#L229GitHubgithub.com/step-security/harden-runner/commit/0080882f6c36860b6ba35c610c98ce87d4e2f26fGitHubgithub.com/step-security/harden-runner/security/advisories/GHSA-g85v-wf27-67xc

How CyberStrike helps

Frequently asked questions

What is CVE-2024-52587?

CVE-2024-52587 is a high-severity vulnerability. It was published on November 18, 2024 and has a CVSS 3.1 base score of 8.8 (HIGH).

How severe is CVE-2024-52587?

This vulnerability has a CVSS 3.1 base score of 8.8, rated HIGH. It can be exploited remotely over the network. Some level of privileges is required for exploitation.

How do I fix or remediate CVE-2024-52587?

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-2024-52587?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2024-52587 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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