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

Description

Testing WAF protection against CVE-2021-44228 Log4Shell

介绍

Simple bash script to test your WAF or other devices against Log4Shell attack strings and various bypasses

Bypass tricks from: https://github.com/Puliczek/CVE-2021-44228-PoC-log4j-bypass-words

To run:
```
./cve-2021-44228.sh -t <URL of the target> -c <HTTP Status Code expected>
```

Or to use the defaults of https://127.0.0.1 and 403:
```
./cve-2021-44228.sh
```

For each test string, this will pass the string into a request to the target using various vectors such as:

* Headers: Using the `User-Agent` header
* URI: Appending the string to requested URI
* Cookies: As the data value of a Cookie
* Query String: As the value of a query string parameter
* POST Body Data: As the body data of a POST request


Example output:
```
Test String: ${jndi:}
-------------------------------------------------------------
HEADERS: curl -ksg -w "%{http_code}" https://127.0.0.1 -A '${jndi:}'
    403
URI: curl -ksg -w "%{http_code}" 'https://127.0.0.1/${jndi:}'
    403
Cookies: curl -ksg -w "%{http_code}" https://127.0.0.1 -b 'session=${jndi:}'
    403
Query String: curl -ksg -w "%{http_code}" 'https://127.0.0.1/something?session=${jndi:}'
    403
POST Data: curl -X POST -ksg -w "%{http_code}" https://127.0.0.1 -d '${jndi:}'
    403
```

文件快照

备注