CVE-2020-14000 : What You Need to Know

MIT Lifelong Kindergarten Scratch scratch-vm before 0.2.0-prerelease.20200714185213 allows remote code execution due to loading extension URLs from untrusted project.json files. This vulnerability arises from the mishandling of certain characters in URLs, leading to the execution of malicious scripts.

Understanding CVE-2020-14000

This CVE involves a critical vulnerability in the Scratch programming environment that could potentially allow an attacker to execute arbitrary code remotely.

What is CVE-2020-14000?

The issue stems from the mishandling of extension URLs from project.json files, where specific characters trigger the execution of the URL content as a script, enabling remote code execution.

The Impact of CVE-2020-14000

The vulnerability allows an attacker to execute malicious code remotely, compromising the security and integrity of systems utilizing the affected Scratch version.

Technical Details of CVE-2020-14000

MIT Lifelong Kindergarten Scratch scratch-vm before 0.2.0-prerelease.20200714185213 is susceptible to a critical security flaw.

Vulnerability Description

The flaw arises from loading extension URLs from untrusted project.json files with certain characters, leading to the execution of the URL content as a script.

Affected Systems and Versions

Product: MIT Lifelong Kindergarten Scratch
Vendor: MIT
Versions affected: scratch-vm before 0.2.0-prerelease.20200714185213

Exploitation Mechanism

The vulnerability occurs due to the mishandling of specific characters in extension URLs, allowing attackers to execute malicious scripts remotely.

Mitigation and Prevention

It is crucial to take immediate steps to address and prevent exploitation of CVE-2020-14000.

Immediate Steps to Take

Update to the latest version of Scratch to mitigate the vulnerability.
Avoid loading extension URLs from untrusted sources.

Long-Term Security Practices

Regularly update software and applications to patch known vulnerabilities.
Implement code reviews and security testing to identify and address similar issues.

Patching and Updates

Apply patches and updates provided by MIT to fix the vulnerability and enhance system security.