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Last updated on 2024年9月16日

How do you manage and update your application dependencies and libraries?

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Application dependencies and libraries are essential components of any software project, but they also introduce potential risks and challenges. If you don't manage and update them properly, you may face security vulnerabilities, compatibility issues, performance problems, or legal liabilities. In this article, you will learn how to handle your application dependencies and libraries in a secure and efficient way.

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Kailash Parshad

Ethical Hacker | Penetration Tester | Cybersecurity Enthusiast | YouTube Educator
Festus Oriaku

Cyber Security Architect || Threat Hunter || Security+ || CEH || CTIA || ITIL || CC || CAP || CNSP || C3SA || QCS ||…

1 Use a dependency manager

A dependency manager is a tool that helps you automate the process of installing, updating, and configuring your dependencies and libraries. It also tracks the versions, licenses, and sources of your dependencies and libraries, and ensures that they are compatible with your project and each other. Some popular dependency managers are npm for Node.js, pip for Python, Maven for Java, and Bundler for Ruby. You should use a dependency manager that suits your programming language, framework, and platform, and follow its best practices and documentation.

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2 Scan for vulnerabilities

Even if you use a dependency manager, you still need to check your dependencies and libraries for any known security vulnerabilities. These vulnerabilities may expose your application to attacks such as code injection, data breaches, or denial of service. You can use tools such as Snyk, Dependabot, or OWASP Dependency-Check to scan your dependencies and libraries for vulnerabilities, and get alerts and recommendations on how to fix them. You should scan your dependencies and libraries regularly, and update or replace them as soon as possible if they are affected by a vulnerability.

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Kailash Parshad

Ethical Hacker | Penetration Tester | Cybersecurity Enthusiast | YouTube Educator
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As an ethical hacker, scanning for vulnerabilities in application dependencies and libraries is a routine practice in my security audits. I rely on tools such as OWASP Dependency-Check and Snyk to ensure that no known vulnerabilities go undetected. For example, during a recent assessment for a financial services client, I identified a vulnerability in a widely used third-party library that could have allowed unauthorized access to sensitive data. By regularly scanning dependencies, we were able to patch the vulnerability before it could be exploited. This practice not only strengthens the security of the application but also aligns with industry compliance standards.

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3 Review your code

Another way to ensure the security of your dependencies and libraries is to review your code and how you use them. You should follow secure coding guidelines and standards, such as OWASP Top 10, and avoid common mistakes such as hard-coding credentials, using insecure protocols, or trusting user input. You should also review the code of your dependencies and libraries, especially if they are from third-party or untrusted sources. You can use tools such as SonarQube, CodeQL, or Checkmarx to perform static or dynamic code analysis, and identify any security issues or bad practices in your code.

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4 Test your application

Before you deploy your application, you should test it thoroughly and verify that it works as expected with your dependencies and libraries. You should use different types of testing, such as unit testing, integration testing, functional testing, and security testing, to cover all aspects of your application's functionality, performance, reliability, and security. You should also use different environments, such as development, staging, and production, to simulate different scenarios and conditions. You can use tools such as Jest, Selenium, JMeter, or Nmap to automate and execute your tests.

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Kailash Parshad

Ethical Hacker | Penetration Tester | Cybersecurity Enthusiast | YouTube Educator
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Testing the application across multiple layers is crucial, especially when dealing with third-party dependencies. In a recent project where I was responsible for securing an e-commerce platform, we conducted thorough security testing using both automated and manual techniques. We used Selenium for functional testing and OWASP ZAP for security testing, focusing on how well our dependencies and libraries handled different types of attacks, such as SQL injection and cross-site scripting (XSS). These tests helped uncover issues that were not immediately obvious during the development phase, enabling us to secure the application before it went live.

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5 Monitor your application

After you deploy your application, you should monitor it continuously and collect data and feedback on how it performs with your dependencies and libraries. You should use tools such as Prometheus, Grafana, Sentry, or New Relic to measure and visualize your application's metrics, such as availability, response time, error rate, or resource usage. You should also use tools such as Logstash, Splunk, or ELK Stack to collect and analyze your application's logs, such as requests, responses, exceptions, or events. You should use these tools to detect and troubleshoot any issues or anomalies in your application, and to optimize and improve it.

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Festus Oriaku

Cyber Security Architect || Threat Hunter || Security+ || CEH || CTIA || ITIL || CC || CAP || CNSP || C3SA || QCS || CTM || 8x Microsoft Certified || 2x ISO/IEC || Application Security Engineer
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To manage and update application dependencies and libraries effectively, you can use package managers such as npm (for Node.js), pip (for Python), or Maven (for Java). These tools help you specify the dependencies in a configuration file (e.g., package.json, requirements.txt) and automatically download and update them as needed. Additionally, regularly check for updates and security advisories for your dependencies and libraries to keep your application secure and up-to-date.

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6 Document your application

Finally, you should document your application and its dependencies and libraries, and keep it updated and accessible. You should document the purpose, functionality, architecture, design, and configuration of your application, and the sources, versions, licenses, and usage of your dependencies and libraries. You should also document the process, tools, and standards that you use to manage and update your dependencies and libraries, and the tests, results, and feedback that you obtain from them. You should use tools such as Markdown, Sphinx, Javadoc, or Swagger to create and maintain your documentation, and tools such as GitHub, GitLab, or Bitbucket to store and share it.

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7 Here’s what else to consider

This is a space to share examples, stories, or insights that don’t fit into any of the previous sections. What else would you like to add?

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Kailash Parshad

Ethical Hacker | Penetration Tester | Cybersecurity Enthusiast | YouTube Educator
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In addition to scanning and testing, it's essential to involve the development and security teams in regular knowledge-sharing sessions. During one of my collaborations with a healthcare provider, we set up monthly meetings where developers and security experts would discuss the latest vulnerabilities, patches, and best practices for managing dependencies. This initiative significantly reduced the time it took to address vulnerabilities and fostered a culture of proactive security within the team. Moreover, continuous training and awareness programs helped ensure that everyone understood the importance of maintaining secure libraries throughout the software lifecycle.

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How do you manage and update your application dependencies and libraries?

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1 Use a dependency manager

2 Scan for vulnerabilities

3 Review your code

4 Test your application

5 Monitor your application

6 Document your application

7 Here’s what else to consider

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