CVE-2021-44228 PoC — Apache Log4j2 JNDI features do not protect against attacker controlled LDAP and other JNDI related endpoints

Source

https://github.com/asyzdykov/cve-2021-44228-fix-jars

Associated Vulnerability

Title:Apache Log4j2 JNDI features do not protect against attacker controlled LDAP and other JNDI related endpoints (CVE-2021-44228)
Description:Apache Log4j2 2.0-beta9 through 2.15.0 (excluding security releases 2.12.2, 2.12.3, and 2.3.1) JNDI features used in configuration, log messages, and parameters do not protect against attacker controlled LDAP and other JNDI related endpoints. An attacker who can control log messages or log message parameters can execute arbitrary code loaded from LDAP servers when message lookup substitution is enabled. From log4j 2.15.0, this behavior has been disabled by default. From version 2.16.0 (along with 2.12.2, 2.12.3, and 2.3.1), this functionality has been completely removed. Note that this vulnerability is specific to log4j-core and does not affect log4net, log4cxx, or other Apache Logging Services projects.

Description

CVE-2021-44228-FIX-JARS

Readme

#CVE-2021-44228

Windows Batch Script to Scan all current path subdirectories 

Archive and Fix the log4j(CVE-2021-44228) impacted jars

1. First:		 lookup_impacted.bat (for creating log4j_impacted_jars_details.txt)
2. Archive: 		 archive_impacted.bat (archive all files listed in log4j_impacted_jars_details.txt)
3. Fix using: 	 fix_impacted.bat (delete JNDILookup.class in jars listed in log4j_impacted_jars_details.txt)

ATTENTION: Only JNDILookup.class affected according to [Doc ID 2828323.1]

(https://support.oracle.com/epmos/faces/DocContentDisplay?_afrLoop=16805527238225&id=2828323.1&_afrWindowMode=0&_adf.ctrl-state=m6ousubav_53)

Works only in Windows env

File Snapshot


 [4.0K]  /data/pocs/fa2d00c6f3a5114973f777de2f33fdd03479ae20
├── [1.9K]  1.lookup_impacted.bat
├── [  76]  2.archive_impacted.bat
├── [1.5K]  3.fix_impacted.bat
└── [ 668]  README.md

0 directories, 4 files

Shenlong Bot has cached this for you

Remarks

1. It is advised to access via the original source first.

2. Local POC snapshots are reserved for subscribers — if the original source is unavailable, the local mirror is part of the paid plan.

View subscription plans →

Goal Reached Thanks to every supporter — we hit 100%!