xss attack

Microsoft OAuth interface XSS can affect User Account Security One day, when I browsed Twitter information, I found a very interesting article, a CSRF vulnerability discovered by Wesley Wineberg on the Microsoft OAuth interface. This article also aroused my curiosity and confidence in finding another vulnerability in this place (The author is as confident as the mystery). Therefore, I plan to analyze this authentication interface in depth.First, to us

activity. Another reason is that there are many variants of this attack. It is difficult to create an effective XSS filter. However, this is only relative. The "encoding" and "filtering" of user input data are very important at any time. We must adopt some targeted measures to defend against it. B. same-origin policy of the browser: The same-origin policy is a convention. It is the core and basic security

have seen the most external storage-type xss, that is, message books, intra-site messages of some dating forums, etc. In these places, reflective xss will not be triggered by others, the stored xss is stored in the database, and it does not need to execute attack code on its own and is automatically executed. Used in

In fact, this topic is very early to say, and found that many of the domestic PHP site has XSS loopholes. Today, I happened to see an XSS loophole in PHP5, here to summarize. By the way, friends who use PHP5 best to lay patches or upgrade them. If you don't know what XSS is, you can look here, or here (Chinese may understood some). Many domestic forums have cro

XSS Cross-site scripting attack: A malicious attacker inserts malicious script code into a Web page, and when the user browses to the page, the script code embedded inside the Web is executed to achieve the purpose of malicious attacks on the user.For example, some forums allow users to speak freely without detecting the user's input data, which is displayed directly on the page.If the user enters some CSS

displayed, that is, the Code is executed, not displayed on the page? Effect of the suffix string You can use a forged url to obtain user cookies. For example, add document. cookie = ("name = 123"); in Example 1, set the cookie, and construct the url as follows to pass the cookie in the localhost domain to and search Http: // 127.0.0.1/attrck.html? Search = Because cookies prohibit cross-origin access, but the forged url, the browser will think it is a localhost domain * Saved

Thoughts and conclusions on XSS prevention I recently read some web security-related articles, most of which have systematic and complete solutions. However, XSS (Cross-site scripting) attack-related information is messy, even the XSS attacks where HTML object escaping can solve are unclear. After turning over a bunch

browser, you can get the cookies of the user. If the attacker is prepared in advance, the attacker can also use the csrf attack. Here we boldly assume that: Suppose 1: attackers encapsulate XSS code in the plug-in and upload it to the browser plug-in to download the website (the management is lax, and the administrator cannot view a line of code at all). After the upload is successful. Download and install

Read Catalogue Types and characteristics of XSS XSS Prevention Summarize XSS, also known as Cross site Scripting, is the focus of XSS not across sites, but in the execution of scripts. With the development of Web front-end applications, XSS vulnerabilit

= "HELL )"Argv_1 = "";Argv_1 + = "--------------------- 7964f8dddeb95fc5Content-Disposition: form-data; name =" data [receiver_name] "";Argv_1 + = (_ to + "");Argv_1 + = "--------------------- 7964f8dddeb95fc5Content-Disposition: form-data; name =" data [subject] ";Argv_1 + = (_ s + "");Argv_1 + = "--------------------- 7964f8dddeb95fc5Content-Disposition: form-data; name =" data [message] [content] "";Argv_1 + = (_ m + "");Argv_1 + = "--------------------- 7964f8dddeb95fc5Content-Disposition:

using syntax in a JSP file .Let's assume that the attacker successfully populated a page containing a malicious script into the Web site used by the subscribing member. The effect of this successful attack is that when the page is executed on the user's browser, a pop-up window appears, as shown in Figure 4.Figure 4 before encodingIn the next scenario, this virtual site ensures that the generated pages are correctly encoded by using a

We know that XSS attacks are divided into three types: persistent, non-persistent, and Dom-based. The reflection type is the most commonly used and the most widely used attack method. It sends malicious scripts to othersCodeParameter URL. When the URL address is opened, the special malicious code parameters are parsed and executed by HTML. This feature is non-persistent. You must click a link with a specifi

Prevent correct xss posture Xss attacks are common web attacks. If you have not heard of xss attacks, you can first understand the knowledge and principles of xss, such as XSS) "target =" _ blank "rel =" nofollow, noindex "> https://www.owasp.org/index.php/Cross-site_Scripti

The DDoS full name is distributed denial of service (distributed denial-of-service attack), and many Dos attack sources attack a single server to form a DDoS attack, which dates back to 1996 initially and began to occur frequently in China in 2002, 2003 has begun to take shape.Introduction to DDoS Attacks:There are man

JSP spring boot/cloud uses filter to prevent XSS and cloudxss JSP spring boot/cloud uses filter to prevent XSS I. Preface XSS (Cross-Site Scripting) Cross-Site Scripting (XSS) attacks are not abbreviated to Cascading Style Sheet (CSS). Therefore, XSS attacks are abbreviated

RAyh4c Black Box Let's talk about the idea and specific code of using discuz xss last year. A persistent XSS vulnerability exists in the personal signature settings of all versions of discuz x Series and below: for example, when modifying a personal signature, submit This XSS application scenario is special. It can be triggered only on the Personal Data settings

Recently, DiscuzX2 was revealed to have two 0day vulnerabilities, one being the SQL injection vulnerability. Attackers can exploit this vulnerability to obtain the user name and password, and the other being the XSS injection vulnerability, attackers can conduct website Trojans, phishing, and other activities. Currently, the official version 0629 has been released for this issue, the following is the vulnerability analysis report of the Nevel security

CnCxzSec's Blog Today, I saw an article Exploitation of "Self-Only" XSS in Google Code in exploit-db, which is about the "cross-Self XSS" on Google Code ". In the past, I found that some mainstream domestic mailboxes "only cross-user XSS" were found. After reporting, the official team thought it was harmless. I used to think that too. UnlessIn extreme casesFor ex