![]() ![]() Tomcat 6 In context.xml set the context tag’s attribute useHttpOnly 4īool setcookie ( string $name [, string $value [, int $expire= 0 [, string $path. ![]() Some web application servers, that implement JEE 5, and servletĬontainers that implement Java Servlet 2.5 (part of JEE 5), also allow Public void doFilter ( ServletRequest request, ServletResponse response, FilterChain filterChain ) throws IOException, ServletException Moreover, since JEE 6 it’s also declaratively easy setting HttpOnlyįlag in a session cookie by applying the following configuration in the In fact setHttpOnly and isHttpOnly methods are available in theĪnd also for session cookies (JSESSIONID) Technology, it’s programmatically easy to set the HttpOnly flag on a Since Java Enterprise Edition 6 (JEE 6), which adopted Java Servlet 3.0 ![]() Sending the data to an attacker’s website. This causes theĪttack to fail by preventing the malicious (usually XSS) code from The browser returns an empty string as the result. HttpOnly flag, and client side script code attempts to read the cookie, If a browser that supports HttpOnly detects a cookie containing the Microsoft, the majority of XSS attacks target theft of session cookies.Ī server could help mitigate this issue by setting the HttpOnly flag onĪ cookie it creates, indicating the cookie should not be accessible on Security Program Manager in the Secure Windows Initiative group at Mitigating the Most Common XSS attack using HttpOnly As a result, theĬookie (typically your session cookie) becomes vulnerable to theft or HttpOnly cookie, the HttpOnly flag will be ignored by the browser, thusĬreating a traditional, script accessible cookie. If a browser does not support HttpOnly and a website attempts to set an (XSS) flaw exists, and a user accidentally accesses a link thatĮxploits this flaw, the browser (primarily Internet Explorer) will not As a result, even if a cross-site scripting The cookie cannot be accessed through client side script (again if theīrowser supports this flag). If the HttpOnly flag (optional) is included in the HTTP response header, ![]()
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