CVE-2021-43819 : Exploit Details and Defense Strategies

This CVE involves Stargate-Bukkit improperly handling vehicles, resulting in data duplication.

Understanding CVE-2021-43819

What is CVE-2021-43819?

CVE-2021-43819 reveals a vulnerability in Stargate-Bukkit, a mod for Minecraft that introduces a portal-focused environment. In specific versions, Minecarts with chests drop their items when teleporting through a portal, impacting game integrity.

The Impact of CVE-2021-43819

The vulnerability allows for data duplication in Minecraft game world, compromising gameplay integrity.

Technical Details of CVE-2021-43819

Vulnerability Description

Stargate-Bukkit fails to handle vehicles correctly, leading to items dropping and reappearing, affecting game continuity.

Affected Systems and Versions

Vendor: stargate-bukkit
Product: Stargate-Bukkit
Versions Affected: >= 0.7.9.11, < 0.11.5.1

Exploitation Mechanism

The issue arises due to incorrect handling of vehicle actions during teleportation, causing items to duplicate in-game.

Mitigation and Prevention

Immediate Steps to Take

Upgrade to release

0.11.5.1

to address the teleportation code issue.

Long-Term Security Practices

Regularly update Minecraft mods and verify compatibility with the latest Minecraft version.
Monitor for vendor patches or updates and apply them promptly.
Engage in security testing for Minecraft mods to identify and address vulnerabilities.
Educate users on safe mod usage practices.

Patching and Updates

Ensure to apply any patches or updates provided by Stargate-Bukkit to fix the data duplication vulnerability.