Download Cisco.350-701.CertDumps.2021-08-05.324q.tqb

Cross site scripting (also known as XSS) occurs when a web application gathers malicious data from a user. The data is usually gathered in the form of a hyperlink which contains malicious content within it. The user will most likely click on this link from another website, instant message, or simply just reading a web board or email message. Usually the attacker will encode the malicious portion of the link to the site in HEX (or other encoding methods)so the request is less suspicious looking to the user when clicked on. For example the code below is written in hex:<a href=&#x6A&#x61&#x76&#x61&#x73&#x63&#x72&#x69&#x70&#x74&#x3A&#x61&#x6C&#x65&#x72&#x74&#x28&#x27&#x58&#x53&#x53&#x27&#x29>Click Here</a> is equivalent to:<a href=javascript:alert('XSS')>Click Here</a>Note: In the format “&#xhhhh“, hhhh is the code point in hexadecimal form.

SQL injection usually occurs when you ask a user for input, like their username/userid, but the user gives (“injects”) you an SQL statement that you will unknowingly run on your database. For example:Look at the following example, which creates a SELECT statement by adding a variable (txtUserId) to a select string. The variable is fetched from user input (getRequestString):txtUserId = getRequestString(“UserId”); txtSQL = “SELECT * FROM Users WHERE UserId = ” + txtUserId; If user enter something like this: “100 OR 1=1” then the SQL statement will look like this:SELECT * FROM Users WHERE UserId = 100 OR 1=1; The SQL above is valid and will return ALL rows from the “Users” table, since OR 1=1 is always TRUE. A hacker might get access to all the user names and passwords in this database.