01Introduction
Your application is the part of your attack surface you built yourself, so no vendor patch will fix it. Application security is the practice of making sure what you ship can't be turned against you or your users.
02What is AppSec?
Application security (AppSec) is the set of practices, tools and processes used to find, fix and prevent security vulnerabilities in software throughout its lifecycle, from design and code to dependencies and the running application.
Core methods include threat modeling, static analysis (SAST), software composition analysis, secrets detection, dynamic testing (DAST) and penetration testing. ASPM aggregates their results, and DevSecOps embeds them in delivery.
03How AppSec works
AppSec layers controls across the software lifecycle.
- 1.
Design
Threat model new features to find risky trust boundaries early.
- 2.
Code
Review pull requests and scan source for vulnerable patterns, the core of shift left security.
- 3.
Build
Check dependencies and containers for known vulnerabilities and malware.
- 4.
04Threats and risks
The most damaging application flaws are rarely the easiest to scan for.
Broken access control
One user reading or changing another's data. It is the top risk on the OWASP Top 10.
Injection
SQL, command and template injection where untrusted input reaches an interpreter.
Business logic abuse
Skipped steps, replayed requests and manipulated prices that follow the app's own rules.
Vulnerable dependencies
Known CVEs in open source packages your code calls.
05How Parameter helps
Parameter covers AppSec from pull request to production.
Every pull request
Sentinel reviews code for exploitable issues and comments with a fix before merge.
Every release
The pentesting agents test auth, access control and business logic on the running app.
Every dependency
Supply Chain flags vulnerable and malicious packages with reachability.
