🛡️ Mission: The AppSec Guardian Quest
Objective: Secure the perimeter. Identify the vulnerabilities, integrate security into the pipeline, and patch the exploited code to defeat the final boss!
Level 1: The OWASP Warm-up (Basic Web Security)
+50 XP
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XSS exploits the user’s trust in a website. An attacker injects malicious scripts into the web page, which then executes in the victim’s browser (stealing session cookies, for example).
CSRF exploits the website’s trust in a user’s browser. It tricks an already-authenticated user into executing unwanted actions (like transferring funds) without their knowledge.
Pro Tip for the interview: XSS involves unauthorized code execution; CSRF involves unauthorized state-changing requests.
Level 2: The Pipeline (DevSecOps)
+100 XP
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SAST (Static Application Security Testing): Happens early in the pipeline (during coding/build phases). It scans the raw source code for vulnerabilities without running the application. It is a white-box testing approach.
DAST (Dynamic Application Security Testing): Happens later (during QA/Staging phases). It interacts with the fully compiled, running application from the outside to find vulnerabilities. It is a black-box testing approach.
Final Boss: The Exploit (Remediation)
+500 XP
String query = "SELECT * FROM users WHERE username = '" + user + "' AND password = '" + pass + "'";
Statement statement = connection.createStatement();
ResultSet resultSet = statement.executeQuery(query);
Defeat the Boss (Show Fix) ⚔️
The Vulnerability: This is a classic SQL Injection (SQLi) flaw. An attacker could enter ' OR '1'='1 into the password field to bypass authentication completely.
The Fix: You must use PreparedStatement (Parameterized Queries) to ensure user input is treated strictly as data, not executable code.
The Secure Code:
String query = "SELECT * FROM users WHERE username = ? AND password = ?"; PreparedStatement pstmt = connection.prepareStatement(query); pstmt.setString(1, user); pstmt.setString(2, pass); ResultSet resultSet = pstmt.executeQuery();
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