step-security harden-runner up to 2.10.1 Environment Variable os command injection

Summaryinfo

A vulnerability, which was classified as critical, has been found in step-security harden-runner up to 2.10.1. The impacted element is an unknown function of the component Environment Variable Handler. The manipulation leads to os command injection. This vulnerability is listed as CVE-2024-52587. The attack may be initiated remotely. There is no available exploit. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability was found in step-security harden-runner up to 2.10.1. It has been rated as critical. This issue affects an unknown functionality of the component Environment Variable Handler. The manipulation with an unknown input leads to a os command injection vulnerability. Using CWE to declare the problem leads to CWE-78. The product constructs all or part of an OS command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended OS command when it is sent to a downstream component. Impacted is confidentiality, integrity, and availability. The summary by CVE is:

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.

It is possible to read the advisory at github.com. The identification of this vulnerability is CVE-2024-52587 since 11/14/2024. The exploitation is known to be easy. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. The technical details are unknown and an exploit is not publicly available. The attack technique deployed by this issue is T1202 according to MITRE ATT&CK.

Upgrading to version 2.10.2 eliminates this vulnerability. Applying the patch 0080882f6c36860b6ba35c610c98ce87d4e2f26f is able to eliminate this problem. The bugfix is ready for download at github.com. The best possible mitigation is suggested to be upgrading to the latest version.

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Productinfo

Vendor

• step-security

Name

• harden-runner

Version

• 2.10.0
• 2.10.1

License

• open-source

Website

• Product: https://github.com/step-security/harden-runner/

CPE 2.3info

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CPE 2.2info

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