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

Source

https://github.com/ToxicEnvelope/XSYS-Log4J2Shell-Ex

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

this repository contains a POC of CVE-2021-44228 (log4j2shell) as part of a security research

Readme

# XSYS-Log4J2Shell-Ex
`CVE-2021-44228 (log4j2shell)` PoC as part of a security research for a vulnerability patch

---
## Overview
```text

In this repository I will cover several topics and implementations

which provide a PROOF OF CONCEPT regarding the Log4J 2.17.0 vulnerability .

The main goal is to provide a PATCH for CVE-2021-44228 and ensure 

a JNDI RCE bypass via Headers and/or Body payloads.

Hence, 

I will provide two types of application for this PoC . 

1. Apache J2EE application which is vulnerable .

2. Apache J2EE application which were patched .
 
```
---

File Snapshot


 [4.0K]  /data/pocs/3edb871b77dbe352e5092cf9118c86540f91c205
├── [4.8K]  log4j_exp.py
├── [ 581]  README.md
├── [  88]  requirements.txt
└── [4.0K]  Scripts
    └── [ 131]  py_env_startup.sh

1 directory, 4 files

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