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 检查工具

Readme

#### #1 使用说明

CVE-2021-44228 log4j 2.x rce漏洞检测工具，对目标链接发起get请求并利用dnslog探测是否有回显

```bash
$ python3 log4j-scan.py -h
Usage: python log4j-scan.py -u <target url>

Options:
  -h, --help         show this help message and exit
  -u URL, --url=URL  输入需要检查的链接，如: https://ainrm.cn
```

#### #2 过程截图

1. 内置8个公开payload与18个请求头，共144种组合方式

![ainrm@20211214160504](./tu/ainrm@20211214160504.png)

2. `-u`形式传入链接

![ainrm@20211214162054](./tu/ainrm@20211214162054.png)

File Snapshot


 [4.0K]  /data/pocs/8740fd866ec4f9022c2f64d8d65f7d9cbca7f13d
├── [4.7K]  log4j-scan.py
├── [ 588]  README.md
└── [4.0K]  tu
    ├── [720K]  ainrm@20211214160504.png
    └── [213K]  ainrm@20211214162054.png

1 directory, 4 files

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