CVE-2018-10992 : Vulnerability Insights and Analysis

In LilyPond 2.19.80, a vulnerability exists in the lilypond-invoke-editor feature that allows remote attackers to launch argument-injection attacks via a crafted URL.

Understanding CVE-2018-10992

This CVE describes a flaw in LilyPond 2.19.80 that can be exploited by attackers to execute malicious commands.

What is CVE-2018-10992?

The vulnerability in LilyPond 2.19.80 allows remote attackers to conduct argument-injection attacks through a crafted URL.

The Impact of CVE-2018-10992

Remote attackers can exploit this vulnerability to launch argument-injection attacks.
The flaw stems from the use of the less secure system Scheme procedure instead of the more secure system* Scheme procedure.

Technical Details of CVE-2018-10992

This section provides detailed technical information about the vulnerability.

Vulnerability Description

The flaw in LilyPond 2.19.80 allows attackers to execute commands via the BROWSER environment variable.

Affected Systems and Versions

Product: LilyPond
Version: 2.19.80

Exploitation Mechanism

Attackers can exploit this vulnerability by using a crafted URL, such as a --proxy-pac-file argument.

Mitigation and Prevention

Protecting systems from CVE-2018-10992 requires immediate actions and long-term security practices.

Immediate Steps to Take

Disable the lilypond-invoke-editor feature if not essential.
Implement input validation to prevent command injection.

Long-Term Security Practices

Regularly update LilyPond to the latest version.
Monitor and restrict environment variables that can execute commands.

Patching and Updates

Apply patches provided by LilyPond to address this vulnerability.