Which of the following examples would be best mitigated by input sanitization?
A. XSS (Correct Answer)
B. nmap -p- 10.11.1.130
C. Email message: “Click this link to get your free gift card.”
D. Browser message: “Your connection is not private.”
it's A. Actually, the fact you don't see it, means this website admin dare not to put it as a text string but make it an image, this along means choice A is dangerous and needs to be sanitized. lmao ~
C because that link's querystring can be modified by a hacker, like so:
www.website.com/[email protected]
the email address would most likely be a database field. An SQLi could be appended to the query string (and not necessarily an injection that would produce data, but one that could, for example, TRUNCATE or DROP a table, or some other nasty)
Input sanitization is a cybersecurity measure of checking, cleaning, and filtering data inputs from users, APIs, and web services of any unwanted characters and strings to prevent the injection of harmful codes into the system.
Input sanitization prevent: SQLi and XSS
So A. if there is an XSS
C. Email message: “Click this link to get your free gift card.”
Input sanitization involves filtering and cleaning user or external input to remove potentially harmful or malicious content. In the case of email messages, input sanitization can help prevent users from clicking on links or downloading attachments that may lead to phishing attacks, malware, or other security threats. By sanitizing the content of emails, you can reduce the risk associated with deceptive or malicious email messages.
The other examples are not directly related to input sanitization:
This is not handled by Input Sanitization. This sort of email is handled by the SPAM Filtering System. The answer is option A, as that is a likely framework for XSS.
Incorrect!
Querystrings should ALWAYS be handled with care (input sanitize GETs too!).
Any link provided to sign up for something or confirm something will have a querystring on it - in this case, most likely the email address. Because email addresses are stored in databases, a "click to get your free card" link would probably contain either the email explicitly or a string identifier, making it perfect for SQLi attack. As a veteran web developer, I've seen this attack many times and always sanitize querystrings and/or querystring parameters. (GET, POST, PUSH, DELETE, and PATCH HTTP verbs should all be sanitized)
C. Email message: “Click this link to get your free gift card.”
Input sanitization is a technique primarily used to validate and clean user or external input to prevent security vulnerabilities or malicious data from affecting a system, especially in web applications and data entry forms. In this case, the email message involves user interaction and clicking a link, which can potentially lead to security risks such as phishing or malicious links. Input sanitization in email content can help filter and validate links to prevent users from clicking on potentially harmful or malicious links.
This C option represents a scenario where input sanitization (in the context of validating and cleaning the content of an email message) can play a role in mitigating security risks.
I go with A The best example that can be mitigated by input sanitization is XSS (Cross-Site Scripting) attack1. Input sanitization is the process of cleaning up user input data to prevent attacks such as XSS and protect the application from data corruption2.
XSS is a type of security vulnerability that allows an attacker to inject malicious code into a web page viewed by other users. The attacker can then steal user data or perform actions on behalf of the user1.
In contrast, nmap -p- 10.11.1.130 is a port scanning tool used to identify open ports on a network3. Email message: “Click this link to get your free gift card.” and Browser message: “Your connection is not private.” are examples of phishing and SSL/TLS certificate errors respectively
The most common techniques used against weak inputs are probably cross-site scripting (XSS) attacks, which involves attackers injecting malicious scripts into otherwise trustworthy websites.
Input sanitization is a technique used to cleanse and validate user input to prevent the introduction of malicious or unwanted data into a system. In the case of the email message, input sanitization could be used to check the validity of the link provided in the email and ensure it does not contain any malicious content or lead to a phishing website.
C. Email message: “Click this link to get your free gift card.”
Input sanitization is a technique primarily used to validate and clean user or external input to prevent security vulnerabilities or malicious data from affecting a system, especially in web applications and data entry forms. In this case, the email message involves user interaction and clicking a link, which can potentially lead to security risks such as phishing or malicious links. Input sanitization in email content can help filter and validate links to prevent users from clicking on potentially harmful or malicious links.
Option C represents a scenario where input sanitization (in the context of validating and cleaning the content of an email message) can play a role in mitigating security risks.
I thought about this question over night and I think I will go with 'A' at first i thought it was an error with examtopics but now i think it is a blank input. If that is the case then Input Sanitization would fix this by making it be a required field
If you inspect the option elements, you will see option A is actually //<script>alert("Warning!");</script>.
Basically, Examtopics got XSS'd by the option.
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