CVE-2021-4287 ReFirm Labs binwalk Archive Extraction extractor.py symlink

2022-12-2710:32:41

CWE-61

VulDB

www.cve.org

refirm labs

binwalk

archive extraction

symlink following

vulnerability

5 Medium

CVSS3

Attack Vector

NETWORK

Attack Complexity

HIGH

Privileges Required

NONE

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality Impact

LOW

Integrity Impact

LOW

Availability Impact

LOW

CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:L

0.001 Low

EPSS

Percentile

50.0%

JSON

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.

CNA Affected

[
  {
    "vendor": "ReFirm Labs",
    "product": "binwalk",
    "versions": [
      {
        "version": "2.3.0",
        "status": "affected"
      },
      {
        "version": "2.3.1",
        "status": "affected"
      },
      {
        "version": "2.3.2",
        "status": "affected"
      }
    ],
    "modules": [
      "Archive Extraction Handler"
    ]
  }
]