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Network Vulnerability Assessment

You're reading from   Network Vulnerability Assessment Identify security loopholes in your network's infrastructure

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Product type Paperback
Published in Aug 2018
Publisher
ISBN-13 9781788627252
Length 254 pages
Edition 1st Edition
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Author (1):
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 Rahalkar Rahalkar
Author Profile Icon Rahalkar
Rahalkar
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Toc

Table of Contents (20) Chapters Close

Title Page
Copyright and Credits
Packt Upsell
Contributors
Preface
1. Vulnerability Management Governance FREE CHAPTER 2. Setting Up the Assessment Environment 3. Security Assessment Prerequisites 4. Information Gathering 5. Enumeration and Vulnerability Assessment 6. Gaining Network Access 7. Assessing Web Application Security 8. Privilege Escalation 9. Maintaining Access and Clearing Tracks 10. Vulnerability Scoring 11. Threat Modeling 12. Patching and Security Hardening 13. Vulnerability Reporting and Metrics 1. Other Books You May Enjoy Index

Input validation


Improper validation of input is one of the most common and inherent flaws in most web applications.

This weakness further leads to many critical vulnerabilities in web applications, such as cross-site scripting, SQL injection, buffer overflows, and so on.

Most times when an application is developed, it blindly accepts all the data coming to it. However from the security perspective, this is a harmful practice as malicious data could also get in due to lack of proper validation.

OWASP mapping

Input validation related vulnerabilities are part of the OWASP Top 10 2017. They are covered under A1:2017 Injection, A4:2017-XML External Entities (XXE), A7:2017-Cross-Site Scripting (XSS), and A8:2017-Insecure Deserialization. Some of the vulnerabilities listed under this category are as follows:

  • Application not validating input both on the client side as well as the server side.
  • Application allowing harmful blacklisted characters (<>;’”!()).
  • Application vulnerable to injection...
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