about security issues: (Xss,csrf,cors,jsonp, homologous policy)Ajax is a way to get data from the server without having to refresh the page. Its core object is XHR, the same Origin policy is an AJAX constraint, it sets the same protocol for communication, the same domain name, the same port. For this reason, access to resources is not available, so there are several ways to solve this problem, first: cross-
=newbyte[32];
using(varprovider =newRNGCryptoServiceProvider()) {
provider.GetBytes(encryptionKey);
provider.GetBytes(hashingKey);
3、应用程序中加入 一个ARMOR 钩子ARMOR主要有Authorization filter, fortification filter, and ARMOR UI components, support for ASP. NET MVC and ASP. NET Web API specific usage methods can refer to protecting ASP. NET applications against CSRF Attacks.Reference article:[1]. Preventing C
% D1 % A1 % D4 % F1 rs2 = % CE % DE txt_rs = reside_site = % 3B % 3BThen, check whether the personal information of the person has been modified. This is a bit depressing, when the person visits the URL and then browsesWill return to the data modification successful page, we will be found. Is there a way to prevent the browser from refreshing?What about it?Yes.One way is to use iframe to construct such HTML code:Lake2 = http://passport.baidu.com/u
Django Default on Prevent CSRF (cross-site request forgery) attacks, when the post request, did not upload the csrf field, resulting in a checksum failure, reported 403 errorWorkaround 1:Comment out this code, you can.Cons: Causing Django projects to completely prevent CSRF
This article illustrates the YII framework's approach to preventing SQL injection, XSS attacks, and csrf attacks. Share to everyone for your reference, specific as follows:
The methods commonly used in PHP are:
/* Anti-SQL injection, XSS attack (1)/function Actionclean ($str) {$str =trim ($STR);
$str =strip_tags ($STR);
$str =stripslashes ($STR);
$str =addslashes ($STR);
$str =rawurldecode ($STR);
$str =quotemeta ($STR);
PHPWIND8.7 how to prevent CSRF vulnerability in mobile browser ModeCSRF is no stranger to old webmasters, but it is very unfamiliar to new webmasters. Today, we are talking about CSRF vulnerabilities like webmasters, CSRF is common in the use of user identification to endanger the website and use the website's trust in
troublesome thing for me is session spoofing (or csrf, you can refer to it as you like), because this attack is completely based on the user identity, therefore, there is no possibility to prevent it.
If you don't know much about the session spoofing I just mentioned, you can read: http://www.playhack.net/view.php? Id = 303. Feasible Measures
OK. From here on, I must assume that you have thoroughly unde
, and if so, the request is legitimate.Third, for Ajax complex objects, such as [{"id": "001", "Name": "Xiao Ming"},{"id": "002", "name": "Small Army"}]., Background post processingThis object must be converted to JSON format to the background, and the background is deserialized. (Do not use the other serialization format of Ajax, after the depth of serialization, Django background parsing is more difficult)ContentType no need to specify Utf-8, otherwise post parsing errorIv.
Background:1.CSRF knowledgeCSRF (Cross-site request forgery cross-site solicitation forgery, also known as "one click Attack" or session riding, usually abbreviated as CSRF or XSRF, is a malicious use of the site. Although it sounds like a cross-site script (XSS), it is very different from XSS and is almost at odds with the way it is attacked. XSS leverages trusted users within the site, while
Html.antiforgerytoken () in MVC is a measure to prevent cross-site request forgery (Csrf:cross-site requests forgery) attacks, which are called XSS (XSS, also known as Css:cross-site-script ), the attack is different, XSS is generally the use of trusted users in the site to insert malicious script code to attack, and CSRF is forged into a trusted user to attack the site.To give a simple example, such as the
This article is about PHP forms to prevent duplicate submissions (anti-CSRF vulnerability), has a certain reference value, now share to everyone, the need for friends can refer to
About token
Token, the most important feature of tokens, is randomness, unpredictable. General hackers or software can not guess out.
So, what does token do? What is the principle of it?
Tokens are typically used in two places-pr
Code required, how to prevent data from being submitted outside the station
Reply content:
Code required, how to prevent data from being submitted outside the station
A more common approach is to generate a hashkey for each form that needs to submit data, and bring it together when you submit it.
Check referrer Header
If the user's ID is not visible to anyone other than the user, you can g
Html.antiforgerytoken () in MVC is a measure to prevent cross-site request forgery (Csrf:cross-site requests forgery) attacks, which are called XSS (XSS, also known as Css:cross-site-script ), the attack is different, XSS is generally the use of trusted users in the site to insert malicious script code to attack, and CSRF is forged into a trusted user to attack the site.To give a simple example, such as the
One of the major puzzles is how to effectively prevent CSRF attacks.
$ _ SERVER ['http _ referer']
However, some articles have pointed out that
Referer can forge
For example
Header ("referer: www.aaa.com ")
......
?>
I tried it. it seems that the referer changed when I sent it using the header on the console.
However, $ _ SERVER ['http _ referer'] is empty, indicating that it seems no problem.
So what if
= Antiforgerycookie! =NULL?Antiforgerycookie.value:NULL; //verification of anti-counterfeiting marks from cookies and Headers//You can add try-catch here .Antiforgery.validate (Cookievalue, request.) headers["__requestverificationtoken"]); } Else { NewValidateantiforgerytokenattribute (). Onauthorization (Filtercontext); } } } } }Here comment out the Ajax in the security tag in the reques
=__requestverificationtoken] ');
Get security token
var token = $ (' @Html. AntiForgeryToken () '). Val ();
var headers = {};
Security marking into the headers
///can also put the security mark into
the data headers["__requestverificationtoken"] = token+ 11111111111111111111111111111111111;
$ ("#save"). Click (function () {
$.ajax ({
type: ' POST ',
URL: '/home/index ',
cache:false,
Headers:headers,
data: {Name: "Yangwen", Age: "1"},
success:function (data) {
aler
A major puzzle, how to effectively prevent CSRF attack
Online there is a way to use
$_server[' Http_referer ']
But the article also points out that
Referer can be forged.
For example
Header ("referer:www.aaa.com")
......
?>
I tried it, it looks like I sent it in the console to see that the referer is changing.
But $_server[' http_referer ' is empty, which means it doesn't seem to be a problem.
Well, what
About the use of Html.antiforgerytoken () in fact, many of the online explanation, such as http://blog.csdn.net/cpytiger/article/details/8781457So what do we do with Ajax calls, and do we need to modify all of the AJAX request data? I prefer to write a generic code. The principle is simply to intercept AJAX requests and append your own data. Note that when Ajax transmits data, it can be string/. Object, so here's what you need to deal with:if (typeof data!== "string") {data = $.param (data);}In
Online there is a way to use
$_server[' Http_referer ']
But the article also points out that
Referer can be forged.
For example
Header ("referer:www.aaa.com")
......
?>
I tried it, it looks like I sent it in the console to see that the referer is changing.
But $_server[' http_referer ' is empty, which means it doesn't seem to be a problem.
Well, what about this parameter? Can you prevent it?
Reply to discussion (solution)
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