TL;DR
Application security is the practice of preventing the failures attackers use to take over web applications, steal data, or pivot to internal systems. Most modern web breaches still come from a small set of well-understood flaw classes: data input that the app trusts too much, server-side logic that fetches the wrong thing, authorization checks in the wrong place, and token systems that were configured permissively.
By Shubham Khandare, Delivery Manager, SecureLayer7Updated
Topics
- What is SQL Injection?: the oldest and still one of the most damaging web vulnerabilities. How it works, why parameterized queries fix it, when modern frameworks still leave it open.
- What is Cross-Site Scripting (XSS)?: when attacker-controlled content executes as code in another user's browser. Stored, reflected, and DOM-based variants explained.
- What is Server-Side Request Forgery (SSRF)?: when an application fetches a URL the attacker chose, often reaching internal services that were never meant to be public.
- What is Insecure Direct Object Reference (IDOR)?: when a user can access another user's data by changing an ID in the URL or request body. The single most common authorization flaw in production.
- JWT Security: Common Attacks and Defenses: the standard token format for modern APIs, and the configuration mistakes that turn it into a backdoor.
References
- [1]OWASP Top 10 (2021)(OWASP)
- [2]OWASP Application Security Verification Standard(OWASP)
- [3]MITRE ATT&CK for Enterprise(MITRE)
Related terms