CVE-2022-35649 : Exploit Details and Defense Strategies

A detailed analysis of CVE-2022-35649, a vulnerability found in Moodle due to improper input validation.

Understanding CVE-2022-35649

This section covers the impact, technical details, and mitigation strategies for CVE-2022-35649.

What is CVE-2022-35649?

The vulnerability was discovered in Moodle and is caused by improper input validation in parsing PostScript code. This leads to a remote code execution risk for sites using GhostScript versions older than 9.50, potentially compromising the entire system.

The Impact of CVE-2022-35649

The successful exploitation of this vulnerability can result in a complete compromise of the vulnerable system.

Technical Details of CVE-2022-35649

Here are the technical specifics of CVE-2022-35649.

Vulnerability Description

The vulnerability arises from improper input validation in PostScript code parsing, posing a remote code execution risk.

Affected Systems and Versions

Moodle versions affected include moodle 4.0.2, moodle 3.11.8, and moodle 3.9.15.

Exploitation Mechanism

An omitted execution parameter allows attackers to exploit the vulnerability and potentially execute remote code.

Mitigation and Prevention

Learn how to mitigate the risks associated with CVE-2022-35649.

Immediate Steps to Take

Update Moodle to at least version 4.0.2, 3.11.8, or 3.9.15 to patch this vulnerability.

Long-Term Security Practices

Implement proper input validation techniques and regularly update software to prevent similar vulnerabilities.

Patching and Updates

Stay informed about security patches and updates for Moodle to protect your system from potential threats.