Summary
In this chapter, we have learned about web application communication protocols such as HTTP and HTTP2. We also looked into the security issues caused by HTTP and resolved them by introducing the SSL/TLS certificate embedded in the HTTP, and we came up with a new secured protocol, HTTPS. We also learned about various web application attacks, such as SQL injection, XSS, session hijacking, and buffer overflow, with practical examples. Another service we looked at was email and its corresponding protocols, vulnerabilities, and gateway attacks.
In the next chapter, we will look into more advanced topics such as enterprise security protocols, including LDAP and SMB, their operations, their usage, and their corresponding attacks. We will also look into SQL server attacks, which can leverage an attacker to compromise even a domain admin.
