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CVE-2021-4287

5.0 · MEDIUM

A vulnerability, which was classified as problematic, was found in ReFirm Labs binwalk up to 2.3.2.

Published Dec 27, 2022CWE-61EPSS 2.04%

Overview

CVE-2021-4287 is a medium-severity vulnerability. It was published on December 27, 2022 and has a CVSS 3.1 base score of 5.0 (MEDIUM).

This vulnerability has a CVSS 3.1 base score of 5.0, rated MEDIUM. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

Technical description

A vulnerability, which was classified as problematic, was found in ReFirm Labs binwalk up to 2.3.2. Affected is an unknown function of the file src/binwalk/modules/extractor.py of the component Archive Extraction Handler. The manipulation leads to symlink following. It is possible to launch the attack remotely. Upgrading to version 2.3.3 is able to address this issue. The name of the patch is fa0c0bd59b8588814756942fe4cb5452e76c1dcd. It is recommended to upgrade the affected component. The identifier of this vulnerability is VDB-216876.

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/ReFirmLabs/binwalk/commit/fa0c0bd59b8588814756942fe4cb5452e76c1dcdGitHubgithub.com/ReFirmLabs/binwalk/pull/556GitHubgithub.com/ReFirmLabs/binwalk/releases/tag/v2.3.3Refvuldb.com/?ctiid.216876Refvuldb.com/?id.216876GitHubgithub.com/ReFirmLabs/binwalk/commit/fa0c0bd59b8588814756942fe4cb5452e76c1dcdGitHubgithub.com/ReFirmLabs/binwalk/pull/556GitHubgithub.com/ReFirmLabs/binwalk/releases/tag/v2.3.3Refvuldb.com/?ctiid.216876Refvuldb.com/?id.216876

How CyberStrike helps

Frequently asked questions

What is CVE-2021-4287?

CVE-2021-4287 is a medium-severity vulnerability. It was published on December 27, 2022 and has a CVSS 3.1 base score of 5.0 (MEDIUM).

How severe is CVE-2021-4287?

This vulnerability has a CVSS 3.1 base score of 5.0, rated MEDIUM. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2021-4287?

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-2021-4287?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2021-4287 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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