Assignment Lab - Interpret Static Analysis Reports
Compare and analyze the results of the three reports and write a report detailing the key findings for each sample code and comparing the results. Report should include the screen shots of the report and the screen shot of the scans being completed. Which code is most secure? Which code is most insecure? Please support your answers with specific results from the reports and supporting discussion.
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Answer - Interpret Static Analysis Reports
Interpret Static Analysis Report
Application security is used for the software application and code of the program to fortify from the exterior menace. Many advantage of affixing the program code of a software application from external and internal threats. There are many tool and technique which are used for securing the software code of a payment card industry.
Static code analysis is a technique that is used to analyze the code which is not executable for the program. This technique is also to identify the standard and ensure the certainty problem before the software delivered. This technique check the program code without giving an active response that the code is not executing. It checks the syntax and code. Static tool analyzes the source code insecurity, libraries, and function or any other feature are used in the application code. These tools find the fault or bugs which conduct vulnerabilities when we talk about static analysis of a software application for the security purpose.
Start activity to detect safety vulnerabilities using the creditable external sources to safety vulnerability information after that give a classification as a big, middle or low for recently known security vulnerabilities. The all essential requirement that is needed. But best practices that ensure cardholder information safe. It needs to give first priority to PCI that all the data should be more secure. So it should be standard for the security purpose. So explore and get the data more secure. Data of cardholders like card number, name on card, the expiry date of card and security code. In fact, managing the PCI is a complex task for a large organization.
For hosting or managing an organization, you have to ensure payment card Industry compliance for the company. So you have to decide the level for compliance based on debit credit and the volume of the transaction of a year. In the lower level small and medium-sized business but it does not prevent the need to manage compliance by the same effort for a bigger organization.
The Payment cardholder compliance is significant for any businessman which may be a retailer that sends and keep the records of debit or credit card data of their server computer.
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There are many features which are mention below.
Standards of coding: In the programming code all the rules followed by the coder like the first letter of the class should be a capital letter and the arrangement of the code should be well organized. This type of coding beneficial for the coder and it saves time and effort.
Coding in an arrange way helpful when the code will be checked using the tool and tool assist for that standard code. The absence of this type of tool implements the coding standard of the organization possibly not right because the coding rule is large in amount and it is impossible to remember for everybody.
Apply PCI Compliance with Source Code Analysis
Pen testing is a useful tool for checking the ability of the software after it's delivered.
It is some expensive to execute on a regular basis. The organization required a method to improve the security of the code.
There is two techniques are static security testing and dynamic security testing.
DAST is also called Black Box testing is a powerful solution. Because it has a feature that it can check all un-compiled code and insecurity of the code in the Software development life cycle code.
Source Code Analysis, the most important SAST solution helps fulfill PCI compliance by:
- Check the programming code and show their location.
- It has a feature to combine in CICD and Agile.
- Security is very important so every stage of development of software automation security is required.
- Provide a framework for the development.
- Point out the disadvantages and fix it.
PCI has a requirement for the client scheme because it is changing in the direction of the online and computerized methods. While robust software programming with good source code composition is not sufficient for the whole PCI compliance. It is important to stop all ambiguity then hackers can't enter in the system.
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There are different technique for analyze the static source code for the possible vulnerabilities:
Data flow analysis: This technique is used at run time of the program. When it is in static mode. It checks the basic block of the program code, control the flow of data or analyze the code and control the data flow path.
Basic block example in PHP
1. $a = 10;
2. $b = 30;
3. If ( $a == $b)
4. { # block started
5. Echo "a and b are not same";
6. }
7. # end of block;
Control flow graph: Control Flow Graph: It shows the graph of the flow of control which is generated by the computer when the code run. It is mainly used in static analysis and for a compiler. It can exact show the graph of programming code.
Feature of the control flow graph:
It is oriented to process.
It tells all the path which is traversed at the time of program code execution.
It is a directed graph.
In the control flow graph edge show, the path and nodes show the block.
There are two blocks in control flow.
1. Entry block: Entry in the control block.
2. Exit block: flow exit from control block.
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Taint Analysis:
It recognize the variable, which is tainted. Vulnerability is identified when the tainted variable is passed. It is a very popular technique of taint analysis. It checks the variable which is changed by the user. The user input may be harmful so it should be checked correctly.
It also gives the functionality to check the space of memory which is controlled by the user.
Lexical Analysis
It convert the source code into token and create it easy to control;
The first step of the compiler is lexical analysis, it is also called scanner. Haigh, level programming code gets converted into sequence and sequence is called Tokens.
Lexical Analysis can be executed with the DFA.
And the output in the sequence which is Token after it will
go for the parsing for syntax analysis.
<?php $name = "ROY"; ?>
PHP source code after tokenized:
T_OPEN_TAG
T_VARIABLE
=
T_CONSTANT_ENCAPSED_STRING
;
T_CLOSE TAG
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