Log4jPatcher

A Java Agent based mitigation for Log4j2 JNDI exploits.

This agent employs 2 patches:

Disabling all Lookup conversions (on supported Log4j versions) in org.apache.logging.log4j.core.pattern.MessagePatternConverter by setting noLookups to true in the constructor.
Disabling the org.apache.logging.log4j.core.lookup.JndiLookup class by just returning null in its lookup function.

To use

Add -javaagent:Log4jPatcher.jar as a JVM argument.

More information on this CVE and it's impact is available at CreeperBlog (creeperhost.net)

Log4jPatcher-1.0.1.jar

MC 1.7.6, 1.16-Snapshot, 1.17.1, 1.9.1, 1.16.3, 1.13.1, 1.9.3, 1.8.7, 1.7.4, 1.7.7, 1.15-Snapshot, 1.7.5, 1.4.6, 1.6.1, 1.0, 1.16.1, 1.18.1, 1.10-Snapshot, 1.9.4, 1.9.2, 1.8.4

Release 2021-12-11 Get

Log4jPatcher-1.0.0.jar

MC 1.7.6, 1.16-Snapshot, 1.17.1, 1.9.1, 1.16.3, 1.13.1, 1.9.3, 1.8.7, 1.7.4, 1.7.7, 1.15-Snapshot, 1.7.5, 1.4.6, 1.6.1, 1.0, 1.16.1, 1.18.1, 1.10-Snapshot, 1.9.4, 1.9.2, 1.8.4

Release 2021-12-10 Get

Advertisement Remove ads with Premium →

Latest Release

Version

1.7.6, 1.16-Snapshot, 1.17.1, 1.9.1, 1.16.3, 1.13.1, 1.9.3, 1.8.7, 1.7.4, 1.7.7, 1.15-Snapshot, 1.7.5, 1.4.6, 1.6.1, 1.0, 1.16.1, 1.18.1, 1.10-Snapshot, 1.9.4, 1.9.2, 1.8.4

Download Latest

Details

Minecraft Versions

MC 1.18.1 MC 1.17.1 MC 1.16.3 MC 1.16.1 MC 1.16-Snapshot MC 1.15-Snapshot MC 1.13.1 MC 1.10-Snapshot

Links

Source Code Wiki

Add a badge to your pageLink to Log4JPatcher from a README, website or forum post.

<a href="https://mineuniverse.net/mod/log4jpatcher"><img src="https://mineuniverse.net/api/project-badge/log4jpatcher.svg" alt="Log4JPatcher on MineUniverse" width="206" height="54"></a>

Badges update automatically and link to the mod page on MineUniverse.

Log4JPatcher

Log4jPatcher

To use

More from Official_CreeperHost

You Might Also Like

Log4JPatcher

Log4jPatcher

To use

More from Official_CreeperHost

You Might Also Like

Report Mod