This tool patches the CVE-2021-44228 Log4J vulnerability present in all minecraft versions NOTE THIS TOOL MUST BE RE-RUN after downloading or updating versions of minecraft as its not a perminent patch

Related tags

Hook L4J-Vuln-Patch
Overview

WARNING

THIS EXPLOIT EFFECTS BOTH CLIENTS AND SERVERS

There is currently a exploit going around that affects all versions of Minecraft this exploit abuses log4j deserialization in order to achieve remote code execution this exploit is not new but has only just recently come to light because of paper mc and spigot etc patching and announcing this exploit

Downloads

Currently the only available releases for this patcher are Jar releases but binaries will be available soon

SERVER OWNERS

Please update your servers to the latest version to help protect against this most major providers have already patched this vulnerability HOWERVER this is still unpatched on all minecraft clients

CLIENTS

This tool is too help patch clients and protect them against the vuln because they are all vulnerable all an attack has to do is put a payload in the game chat an all connected clients will be affected

NOTE

THIS IS NOT A PERMANENT SOLUTION THIS ONLY IS A ONE TIME PATCH ON EACH CLIENT JAR UPDATING YOUR MC VERSIONS OR INSTALLING NEW ONES WILL NOT BE AFFECTED BY THIS PATCH AND YOU WILL NEED TO RUN IT AGAIN

WHAT THIS PATCH DOES

This patch modifies each of the log file configurations in your mc jars replacing

%msg with %msg{nolookups}

RELEASES

Releases will be available in the releases tab

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Comments
  • Path isn’t correct (tested on macOS)

    Path isn’t correct (tested on macOS)

    I get ERROR: Could not find minecraft install at /Users/cyberflame/Downloads/patchypatchy/L4J-Vuln-Patch/build/libs/~/Library/Application Support/minecraft??? when trying to run the applet.

    My understanding is that the applet is treating the path returned from the function(?) as a relative path, though I have limited experience with Kotlin so I’m unsure

    opened by CyberFlameGO 2
Releases(release)
Owner
Jacobtread
Just another web developer Discord: Jacobtread#3770
Jacobtread
GitHub
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