Question

Suppose the Hacker who is in the client machine changes the value "15.00OMR" from the line of the source code given in Page3 as below, will it create any security issue? Justify your c. How can a hacker bypass the restriction imnosed on the Quantity? Explain any one method.

Answer 1

A hacker changing client-side values like price can cause display issues but should not affect the final transaction if server-side validation is in place. Methods to bypass quantity restrictions include SQL injection, session hijacking, or cross-site scripting (XSS).

Step-by-step explanation:

If a hacker changes the value "15.00OMR" from the line in a source code, it may create a security issue depending on what the value represents and where the change occurs. If the value is related to a pricing detail that the source code uses to display or calculate costs on the client-side, then changing it can lead to incorrect pricing information being presented to the user.

However, in a secure system, critical data such as pricing would be validated on the server-side to prevent such client-side manipulations from affecting the final transactions. To bypass restrictions imposed on quantity, a hacker might use methods such as SQL injection, where they input SQL code into a form field in the hopes of manipulating the database to ignore quantity restrictions.

Other methods include session hijacking, where the hacker takes control of a user's session after the system has authenticated the user, or cross-site scripting (XSS), where user input is used to inject malicious scripts into web pages viewed by other users.

Answer 2

If a hacker changes the value in the source code, it can create a security issue. One method hackers can use to bypass quantity restrictions is input validation bypass.

Step-by-step explanation:

If the hacker changes the value "15.00OMR" in the source code, it could potentially create a security issue. The value "15.00OMR" is most likely representing the price of an item, and if the hacker changes it to a different value, they could manipulate the price in the system. This could lead to unauthorized discounts or incorrect calculations, affecting the financial integrity of the system.

To bypass the restriction imposed on the quantity, one method a hacker can use is called 'input validation bypass'. This involves altering the input or modifying the request parameters to deceive the system into accepting a value that exceeds the intended restriction. By doing so, the hacker can override the limitation on the quantity and enter any value they desire.

To bypass restrictions on quantity, a hacker might attempt input manipulation, such as using techniques like input validation bypass or injection attacks. For instance, a common method is inputting special characters or exploiting weaknesses in input validation routines to trick the system into accepting unexpected values.

To enhance security, it's crucial to implement robust input validation, sanitize user inputs, and utilize secure coding practices to prevent such attacks. Regular security audits and code reviews can also help identify and mitigate vulnerabilities in the codebase.