Web App Security Made Simple - Vaadin Webinar 2020

Web app security is not just authentication and authorization. It's also the things you do to protect your web app from attackers with their XSS (cross-site scripting), SQL injection, DoS/DDoS attacks, and CSRF (cross-site request forgery), to name a few.

Web app security is a central component of any web-based business. The internet exposes web apps to attacks from different locations and various levels of scale and complexity. Web application security deals specifically with the security surrounding websites, web applications, and web services such as APIs.

In this presentation, you'll learn seven ways to better web app security, using Spring Security for code samples. You'll also see some quick demos of Spring Boot, Angular, and JHipster with Okta.

YouTube video: https://youtu.be/ZIweXk3guaE

Transcript

1. Matt Raible | @mraible November 17, 2020 Web App Security made Simple Photo by Billy Williams on https://unsplash.com/photos/8wz1Q4Q_XAg
2. @mraible Who is Matt Raible? Father, Husband, Skier, Mountain Biker, Whitewater Rafter Bus Lover Web Developer and Java Champion Okta Developer Advocate Blogger on raibledesigns.com and developer.okta.com/blog @mraible
6. developer.okta.com
7. @mraible Today’s Agenda What is web app security? 7 simple ways to better app security 3 quick demos Spring Boot Angular JHipster
8. What is web app security?
9. 1. Use HTTPS 2. Scan your dependencies 3. Use the latest releases 4. Secure your secrets 7 Simple Ways to Better Web App Security 5. Use a Content Security Policy 6. Use OAuth 2.0 and OIDC 7. Prevent Cross-site request forgery (CSRF)
10. @mraible 1. Use HTTPS Everywhere! Let’s Encrypt offers free HTTPS certificates certbot can be used to generate certificates mkcert can be used to create localhost certificates Spring Boot Starter ACME for automating certificates
11. What is HTTPS? https://howhttps.works
12. HTTPS is Easy!
13. Force HTTPS in Spring Boot @Configuration public class SecurityConfiguration extends WebSecurityConfigurerAdapter { @Override protected void configure(HttpSecurity http) throws Exception { http.requiresChannel().anyRequest().requiresSecure(); } }
14. Force HTTPS in the Cloud @Configuration public class SecurityConfiguration extends WebSecurityConfigurerAdapter { @Override protected void configure(HttpSecurity http) throws Exception { http.requiresChannel() .requestMatchers(r "-> r.getHeader("X-Forwarded-Proto") "!= null) .requiresSecure(); } }
15. @mraible “Why do we need HTTPS inside our network?”
16. @mraible 2. Scan Your Dependencies
17. @mraible GitHub + Dependabot
18. @mraible Full-featured Dependency Scanners
19. 3. Use the Latest Releases
20. How well do you know your dependencies? Dependency Health Indirect Dependencies Regular Releases Regular commits Dependencies
21. Check for Updates with npm npm i -g npm-check-updates ncu
22. Check for Updates with Maven mvn versions:display-dependency-updates https://www.mojohaus.org/versions-maven-plugin
23. Check for Updates with Gradle plugins { id("se.patrikerdes.use-latest-versions") version "0.2.13" id("com.github.ben-manes.versions") version "0.28.0" ""... } $ ./gradlew useLatestVersions https://github.com/patrikerdes/gradle-use-latest-versions-plugin
24. @mraible 4. Secure Your Secrets
25. HashiCorp Vault and Azure Key Vault
26. https://developer.okta.com/blog/2020/05/04/spring-vault Secure Secrets With Spring Cloud Config and Vault
27. 5. Use a Content Security Policy
28. Default Spring Security Headers Cache-Control: no-cache, no-store, max-age=0, must-revalidate Pragma: no-cache Expires: 0 X-Content-Type-Options: nosniff Strict-Transport-Security: max-age=31536000; includeSubDomains X-Frame-Options: DENY X-XSS-Protection: 1; mode=block
29. Add a Content Security Policy with Spring Security @EnableWebSecurity public class SecurityConfiguration extends WebSecurityConfigurerAdapter { @Override protected void configure(HttpSecurity http) throws Exception { http.headers() .contentSecurityPolicy("script-src 'self' " + "https:"//trustedscripts.example.com; " + "object-src https:"//trustedplugins.example.com; " + "report-uri /csp-report-endpoint/"); } }
30. Test Your Security Headers https://securityheaders.com
31. @mraible 6. Use OAuth 2.0 and OpenID Connect OpenID Connect OAuth 2.0 HTTP OpenID Connect is for authentication OAuth 2.0 is for authorization
32. @mraible Authorization Code Flow Example https://developer.okta.com/blog/2019/08/28/reactive-microservices-spring-cloud-gateway
33. @mraible Does OAuth 2.0 feel like a maze of specs? https://aaronparecki.com/2019/12/12/21/its-time-for-oauth-2-dot-1
34. @mraible OAuth 2.1 to the rescue! https://oauth.net/2.1 PKCE is required for all clients using the authorization code flow Redirect URIs must be compared using exact string matching The Implicit grant is omitted from this specification The Resource Owner Password Credentials grant is omitted from this specification Bearer token usage omits the use of bearer tokens in the query string of URIs Refresh tokens for public clients must either be sender-constrained or one-time use
35. 7. Prevent CSRF Attacks
36. Configure CSRF Protection with Spring Security @EnableWebSecurity public class SecurityConfiguration extends WebSecurityConfigurerAdapter { @Override protected void configure(HttpSecurity http) throws Exception { http .csrf() .csrfTokenRepository( CookieCsrfTokenRepository.withHttpOnlyFalse()); } }
37. SameSite Cookies
38. @mraible Demos!
39. 1. Use HTTPS 2. Scan your dependencies 3. Use the latest releases 4. Secure your secrets Recap: 7 Simple Ways to Better Web App Security 5. Use a Content Security Policy 6. Use OAuth 2.0 and OIDC 7. Prevent Cross-site request forgery (CSRF)
40. developer.okta.com/blog @oktadev
41. Curious about Microservice Security? https://developer.okta.com/blog/2020/03/23/microservice-security-patterns
42. Thanks! Keep in Touch raibledesigns.com @mraible Presentations speakerdeck.com/mraible Code github.com/oktadeveloper developer.okta.com
43. developer.okta.com