CVE-2021-4287 - CVE House
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Status published Medium CVE-2021-4287

ReFirm Labs binwalk Archive Extraction extractor.py symlink

Vulnerability 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.

Impact Analysis

Refer to official advisory for detailed impact metrics.

Remediation

Ensure systems are updated to the latest vendor-supplied patch levels.

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Credits & Attribution

No credits recorded in the NVD database.

Affected Vendor

ReFirm Labs

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Affected Software

binwalk
Vulnerable Versions:
2.3.0, 2.3.1, 2.3.2

Timeline

Official Publish: December 27th, 2022
Last Modified: April 11th, 2025
Added to House: July 21st, 2026

CVSS Vectors

V3: CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:L

Weaknesses (CWE)

MITRE ATT&CK TTPs

No associated TTPs found for this vulnerability.