http only及设置

1.什么是HttpOnly?

 

如果您在cookie中设置了HttpOnly属性，那么通过js脚本将无法读取到cookie信息，这样能有效的防止XSS攻击

2.javaEE的API是否支持?

 

目前sun公司还没有公布相关的API，但PHP、C#均有实现。搞javaEE的兄弟们比较郁闷了，别急下文有变通实现

 

3.HttpOnly的设置样例

 

javaEE

response.setHeader("Set-Cookie", "cookiename=value;
Path=/;Domain=domainvalue;Max-Age=seconds;HTTPOnly");

response.setHeader("Set-Cookie", "cookiename=value;
Path=/;Domain=domainvalue;Max-Age=seconds;HTTPOnly");

 

具体参数的含义再次不做阐述，设置完毕后通过js脚本是读不到该cookie的，但使用如下方式可以读取

 

Cookie cookies[]=request.getCookies();

Cookie cookies[]=request.getCookies();

 

C#

HttpCookie myCookie = new HttpCookie("myCookie");
myCookie.HttpOnly = true;
Response.AppendCookie(myCookie);

HttpCookie myCookie = new HttpCookie("myCookie");
myCookie.HttpOnly = true;
Response.AppendCookie(myCookie);

VB.NET

Dim myCookie As HttpCookie = new HttpCookie("myCookie")
myCookie.HttpOnly = True
Response.AppendCookie(myCookie)

Dim myCookie As HttpCookie = new HttpCookie("myCookie")
myCookie.HttpOnly = True
Response.AppendCookie(myCookie)

   但是在 .NET 1.1 ,中您需要手动添加

Response.Cookies[cookie].Path += ";HTTPOnly";

PHP4

header("Set-Cookie: hidden=value; httpOnly");

header("Set-Cookie: hidden=value; httpOnly");

PHP5

setcookie("abc", "test", NULL, NULL, NULL, NULL, TRUE);

setcookie("abc", "test", NULL, NULL, NULL, NULL, TRUE); 

    最后一个参数为HttpOnly属性

 

 

参考

<STRONG><STRONG>http://www.owasp.org/index.php/HTTPOnly</STRONG>
</STRONG>