Web Application Security Quiz

What is the main difference between content spoofing and reflected XSS?

• Content spoofing involves changing a portion of the URL to modify content directly, while reflected XSS tampers with HTTP requests to submit malicious code

• Content spoofing hides legitimate content with absolutely positioned elements, while reflected XSS runs attack-driven code in the victim's browser

• Content spoofing executes untrusted data in the victim's browser, while reflected XSS changes content on the page directly

• Content spoofing renders modified content without encoding, while reflected XSS uses deep XSS frameworks

Why is input validation considered the first line of defense against XSS?

• It effectively stops XSS attacks by blacklisting input

• It provides a mix of HTML fragments and untrusted data

• It allows users to enter any character without restrictions

• It prevents XSS issues by limiting the characters users can input

What is the purpose of contextual output encoding in web security?

• To allow users to submit any HTML to the website

• To convert data into a form that executes JavaScript and renders HTML tags

• To use different encoding methods depending on the input validation

• To eliminate scripts and dangerous attributes from HTML content

Which of the following is NOT a context where untrusted data can be inserted into an HTML page?

• HTML context

• Javascript block content

• CSS context

• Attribute context

What is the recommended approach to parse JSON data securely?

• Allow untrusted data to come through in JSON

• Use the eval function to prevent untrusted data

• Parse JSON using JSON.parse method

• Deliver an HTML file populated with data

Why is blacklisted input validation ineffective against XSS attacks?

• It effectively stops XSS attacks by blacklisting input

• It poses a host of XSS issues by providing unrestricted input

• It prevents XSS issues by limiting the characters users can input

• It allows users to enter any character without restrictions

What is the purpose of HTML validation and sanitization in web security?

• To sanitize HTML to eliminate scripts and dangerous attributes

• To allow users to submit any HTML to the website

• To convert data into a form that executes JavaScript and renders HTML tags

• To use different encoding methods depending on the input validation

Which defense strategy is recommended to prevent XSS attacks in modern applications?

• Input validation

• Contextual output encoding

• HTML validation and sanitization

• Secure JSON patterns

What should be considered when choosing a defense strategy against XSS?

• The use of deep and hard to fix XSS frameworks

• The inclusion of untrusted data in the victim's browser

• The ability to enter any character without restrictions

• The types of input in the HTTP request and the locations on a web page where data will be included in the HTML document

How does content spoofing differ from reflected XSS?

• Content spoofing hides legitimate content with absolutely positioned elements, while reflected XSS tampers with HTTP requests to submit malicious code

• Content spoofing renders modified content without encoding, while reflected XSS uses deep XSS frameworks

• Content spoofing involves changing a portion of the URL to modify content directly, while reflected XSS runs attack-driven code in the victim's browser

• Content spoofing executes untrusted data in the victim's browser, while reflected XSS changes content on the page directly