CVE-2020-29007 : Vulnerability Insights and Analysis

CVE-2020-29007 is a vulnerability in the Score extension for MediaWiki that allows remote code execution due to improper sandboxing of the GNU LilyPond executable.

Understanding CVE-2020-29007

The vulnerability in the Score extension for MediaWiki allows users to execute arbitrary Scheme or shell code by using crafted Image data to generate musical scores containing malicious code.

What is CVE-2020-29007?

The Score extension through 0.3.0 for MediaWiki has a remote code execution vulnerability due to improper sandboxing of the GNU LilyPond executable.

The Impact of CVE-2020-29007

This vulnerability allows any user with the ability to edit articles, potentially including unauthenticated anonymous users, to execute arbitrary Scheme or shell code.

Technical Details of CVE-2020-29007

The technical details of CVE-2020-29007 are as follows:

Vulnerability Description

The vulnerability arises from improper sandboxing of the GNU LilyPond executable in the Score extension for MediaWiki.

Affected Systems and Versions

Vendor: n/a
Product: n/a
Versions: 0.3.0 and prior

Exploitation Mechanism

The vulnerability can be exploited by users with the ability to edit articles by using crafted Image data to generate musical scores containing malicious code.

Mitigation and Prevention

To mitigate the risks associated with CVE-2020-29007, consider the following steps:

Immediate Steps to Take

Disable the Score extension in MediaWiki if not essential
Monitor for any unauthorized code execution attempts

Long-Term Security Practices

Regularly update and patch MediaWiki and its extensions
Implement proper input validation and output encoding to prevent code injection attacks

Patching and Updates

Apply the latest patches and updates provided by MediaWiki to address the CVE-2020-29007 vulnerability