CVE-2024-4067 (Medium) Detected In Micromatch-2.3.11.tgz, Micromatch-3.1.10.tgz

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CVE-2024-4067 (Medium) Detected in Micromatch-2.3.11.tgz and Micromatch-3.1.10.tgz

In the ever-evolving landscape of open-source software, vulnerabilities can creep in and pose significant risks to applications and systems that rely on them. One such vulnerability is CVE-2024-4067, a Medium severity vulnerability detected in the micromatch-2.3.11.tgz and micromatch-3.1.10.tgz packages. In this article, we will delve into the details of this vulnerability, its impact, and the suggested fix to ensure the security and integrity of your applications.

CVE-2024-4067 is a Regular Expression Denial of Service (ReDoS) vulnerability in the micromatch package prior to version 4.0.8. This vulnerability occurs in the micromatch.braces() function in index.js due to the greedy matching of the pattern .*. By passing a malicious payload, the pattern matching will keep backtracking to the input, causing the application to hang or slow down as the input size increases.

Vulnerable Libraries

The vulnerable libraries affected by this vulnerability are:

  • micromatch-2.3.11.tgz: A glob matching library for JavaScript and Node.js, used as a drop-in replacement and faster alternative to minimatch and multimatch.
  • micromatch-3.1.10.tgz: Another glob matching library for JavaScript and Node.js, used as a drop-in replacement and faster alternative to minimatch and multimatch.

Dependency Hierarchy

The dependency hierarchy for the vulnerable libraries is as follows:

  • babel-jest-22.4.4.tgz (Root Library)
    • babel-plugin-istanbul-4.1.6.tgz
      • test-exclude-4.2.3.tgz
        • micromatch-2.3.11.tgz (Vulnerable Library)
  • jest-cli-22.4.4.tgz (Root Library)
    • jest-haste-map-22.4.3.tgz
      • sane-2.5.2.tgz
        • micromatch-3.1.10.tgz (Vulnerable Library)

Found in HEAD Commit

The vulnerable libraries were found in the HEAD commit of the ManageIQ/manageiq-v2v repository, with the commit hash being 63bdcc254e4f79ed8aca650620a1d185cb267336.

Found in Base Branch

The vulnerable libraries were also found in the base branch, specifically the master branch.

Vulnerability Details

The vulnerability occurs in the micromatch.braces() function in index.js due to the greedy matching of the pattern .*. By passing a malicious payload, the pattern matching will keep backtracking to the input, causing the application to hang or slow down as the input size increases.

CVSS 3 Score Details

The CVSS 3 score for this vulnerability is 5.3, with the following metrics:

  • Base Score Metrics:
    • Attack Vector: Network
    • Attack Complexity: Low
    • Privileges Required: None
    • User Interaction: None
    • Scope: Unchanged
  • Impact Metrics:
    • Confidentiality Impact: None
    • Integrity Impact: None
    • Availability Impact: Low

Suggested Fix

The suggested fix for this vulnerability is to upgrade the micromatch package to version 4.0.8 or later. Additionally, the direct dependency fix resolutions for babel-jest and jest-cli are 24.0.0 and 27.0.0, respectively.

In conclusion, CVE-2024-4067 is a Medium severity vulnerability detected in the micromatch-2.3.11.tgz and micromatch-3.1.10.tgz packages. This vulnerability occurs in the micromatch.braces() function in index.js due to the greedy matching of the pattern .*. By passing a malicious payload, the pattern matching will keep backtracking to the input, causing the application to hang or slow down as the input size increases. The suggested fix is to upgrade the micromatch package to version 4.0.8 or later, and the direct dependency fix resolutions for babel-jest and jest-cli are 24.0.0 and 27.0.0, respectively.

To ensure the security and integrity of your applications, it is essential to stay up-to-date with the latest security patches and fixes. Mend offers a comprehensive solution to help you manage your open-source dependencies and ensure the security of your applications. Learn more about Mend's full solution for GitHub here.
CVE-2024-4067 (Medium) Detected in Micromatch-2.3.11.tgz and Micromatch-3.1.10.tgz: Q&A

In our previous article, we discussed the CVE-2024-4067 vulnerability detected in the micromatch-2.3.11.tgz and micromatch-3.1.10.tgz packages. This vulnerability is a Regular Expression Denial of Service (ReDoS) vulnerability that occurs in the micromatch.braces() function in index.js due to the greedy matching of the pattern .*. In this article, we will answer some frequently asked questions (FAQs) about this vulnerability to help you better understand its impact and the suggested fix.

Q: What is CVE-2024-4067?

A: CVE-2024-4067 is a Medium severity vulnerability detected in the micromatch-2.3.11.tgz and micromatch-3.1.10.tgz packages. This vulnerability occurs in the micromatch.braces() function in index.js due to the greedy matching of the pattern .*.

Q: What is the impact of this vulnerability?

A: The impact of this vulnerability is that it can cause the application to hang or slow down as the input size increases. This is because the pattern matching will keep backtracking to the input, causing the application to consume more resources and eventually leading to a denial of service.

Q: What is the CVSS 3 score for this vulnerability?

A: The CVSS 3 score for this vulnerability is 5.3, with the following metrics:

  • Base Score Metrics:
    • Attack Vector: Network
    • Attack Complexity: Low
    • Privileges Required: None
    • User Interaction: None
    • Scope: Unchanged
  • Impact Metrics:
    • Confidentiality Impact: None
    • Integrity Impact: None
    • Availability Impact: Low

Q: What is the suggested fix for this vulnerability?

A: The suggested fix for this vulnerability is to upgrade the micromatch package to version 4.0.8 or later. Additionally, the direct dependency fix resolutions for babel-jest and jest-cli are 24.0.0 and 27.0.0, respectively.

Q: How can I check if my application is affected by this vulnerability?

A: To check if your application is affected by this vulnerability, you can use the following steps:

  1. Check the version of the micromatch package in your application.
  2. If the version is prior to 4.0.8, you are affected by this vulnerability.
  3. Upgrade the micromatch package to version 4.0.8 or later to fix the vulnerability.

Q: What are the best practices to prevent similar vulnerabilities in the future?

A: To prevent similar vulnerabilities in the future, follow these best practices:

  1. Regularly update your dependencies to the latest versions.
  2. Use a vulnerability scanner to identify potential vulnerabilities in your dependencies.
  3. Implement a secure coding practice to prevent vulnerabilities in your code.
  4. Use a secure configuration to prevent vulnerabilities in your application.

In conclusion, CVE-2024-4067 is a Medium severity vulnerability detected in the micromatch-2.3.11.tgz and micromatch-3.1.10.tgz packages. This vulnerability occurs in the micromatch.braces() function in index.js due to the greedy matching of the pattern .*. By following the suggested fix and best practices, you can prevent this vulnerability and ensure the security and integrity of your applications.

To ensure the security and integrity of your applications, it is essential to stay up-to-date with the latest security patches and fixes. Mend offers a comprehensive solution to help you manage your open-source dependencies and ensure the security of your applications. Learn more about Mend's full solution for GitHub here.