6.5
MEDIUM
CVE-2021-4287
ReFirm Labs Binwalk Symlink Following 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.

INFO

Published Date :

Dec. 27, 2022, 11:15 a.m.

Last Modified :

May 17, 2024, 2:03 a.m.

Remotely Exploitable :

Yes !

Impact Score :

3.6

Exploitability Score :

2.8
Affected Products

The following products are affected by CVE-2021-4287 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

ID Vendor Product Action
1 Microsoft binwalk
References to Advisories, Solutions, and Tools

Here, you will find a curated list of external links that provide in-depth information, practical solutions, and valuable tools related to CVE-2021-4287.

URL Resource
https://github.com/ReFirmLabs/binwalk/commit/fa0c0bd59b8588814756942fe4cb5452e76c1dcd Patch Third Party Advisory
https://github.com/ReFirmLabs/binwalk/pull/556 Patch Third Party Advisory
https://github.com/ReFirmLabs/binwalk/releases/tag/v2.3.3 Release Notes Third Party Advisory
https://vuldb.com/?ctiid.216876 Third Party Advisory
https://vuldb.com/?id.216876 Third Party Advisory

We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2021-4287 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2021-4287 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.

  • CVE Modified by [email protected]

    May. 17, 2024

    Action Type Old Value New Value
  • CVE Modified by [email protected]

    May. 14, 2024

    Action Type Old Value New Value
  • CVE Modified by [email protected]

    Apr. 11, 2024

    Action Type Old Value New Value
  • CVE Modified by [email protected]

    Mar. 21, 2024

    Action Type Old Value New Value
  • CVE Modified by [email protected]

    Feb. 29, 2024

    Action Type Old Value New Value
  • CVE Modified by [email protected]

    Nov. 07, 2023

    Action Type Old Value New Value
    Removed CVSS V3 VulDB AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:L
    Added CVSS V3.1 VulDB AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:L
  • Reanalysis by [email protected]

    Jul. 18, 2023

    Action Type Old Value New Value
    Added CWE NIST CWE-59
  • Initial Analysis by [email protected]

    Jan. 18, 2023

    Action Type Old Value New Value
    Added CVSS V3.1 NIST AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
    Changed Reference Type https://github.com/ReFirmLabs/binwalk/commit/fa0c0bd59b8588814756942fe4cb5452e76c1dcd No Types Assigned https://github.com/ReFirmLabs/binwalk/commit/fa0c0bd59b8588814756942fe4cb5452e76c1dcd Patch, Third Party Advisory
    Changed Reference Type https://github.com/ReFirmLabs/binwalk/pull/556 No Types Assigned https://github.com/ReFirmLabs/binwalk/pull/556 Patch, Third Party Advisory
    Changed Reference Type https://github.com/ReFirmLabs/binwalk/releases/tag/v2.3.3 No Types Assigned https://github.com/ReFirmLabs/binwalk/releases/tag/v2.3.3 Release Notes, Third Party Advisory
    Changed Reference Type https://vuldb.com/?ctiid.216876 No Types Assigned https://vuldb.com/?ctiid.216876 Third Party Advisory
    Changed Reference Type https://vuldb.com/?id.216876 No Types Assigned https://vuldb.com/?id.216876 Third Party Advisory
    Added CPE Configuration OR *cpe:2.3:a:microsoft:binwalk:*:*:*:*:*:*:*:* versions up to (excluding) 2.3.3
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2021-4287 is associated with the following CWEs:

Common Attack Pattern Enumeration and Classification (CAPEC)

Exploit Prediction

EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.

0.14 }} -0.00%

score

0.49668

percentile

CVSS31 - Vulnerability Scoring System
Attack Vector
Attack Complexity
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Scope
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