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CVE-2021-44228 PoC — Apache Log4j 代码问题漏洞

Source
Associated Vulnerability
Title:Apache Log4j 代码问题漏洞 (CVE-2021-44228)
Description:Apache Log4j是美国阿帕奇(Apache)基金会的一款基于Java的开源日志记录工具。 Apache Log4J 存在代码问题漏洞,攻击者可设计一个数据请求发送给使用 Apache Log4j工具的服务器,当该请求被打印成日志时就会触发远程代码执行。
Description
CVE-2021-44228 
Readme
# Disclaimer
This project is for personal practice purposes only.
## CVE-2021-44228 log4j-shell-poc Exploit
This project demonstrates how to exploit the Apache Log4j vulnerability to gain access to a remote shell using a reverse shell command. 
## Getting Started
To get started with this project, follow the steps below:
## Prerequisites
* Virtual Box
* Docker
* JAVA SE Development kit 8u20
## Installing
1. clone this project from kozmer
git clone https://github.com/kozmer/log4j-shell-poc
2. Build the Docker image:
sudo docker build -t log4j-shell-poc 
3. Download and extract the Java SE Development kit 8u20 file:
sudo tar -xf jdk-8u20-linux-x64.tar.gz
## Exploiting the Vulnerability
1. Open a listener port on port 9001
2. Run the Python3 script that is downloaded from Github. The script will auto-setup the HTTP server and the LDAP server and create the payload that will be used to paste into the vulnerable parameter. The LDAP server contains the address link to our listener.
3. Run the Docker container with the vulnerable web app.
4. Open the web page that was set up previously and enter the malicious code into the user parameter.

At this stage, you will be able to connect to the web page shell. From here, you can browse and delete files. The creator has included a file called safeToDelete.tmp for you to test with. If this file contained sensitive information, a hacker could retrieve the data for malicious purposes or delete the file just for fun.
## Authors
* Kozmer https://github.com/kozmer 


File Snapshot

[4.0K] /data/pocs/d290c11b340deae324b4f6186a076309e7b5a1d4 ├── [ 14K] mitigation tehniques.docx ├── [1.5K] README.md ├── [1.7M] Step for exploiting.docx └── [ 72K] Vulnerabities description.docx 0 directories, 4 files
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