CS0-003 Vulnerability Management Practice Question
A security analyst is using Burp Suite to test a web application for vulnerabilities. Which TWO of the following are common web application vulnerabilities that can be detected using Burp Suite? (Select TWO)
Answer choices
Why each option matters
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Cross-site scripting (XSS)
Burp Suite can detect SQL injection and XSS through its scanner and manual testing tools. Buffer overflow and race conditions are typically not web application vulnerabilities detected by web proxies. Insecure deserialization can be detected but is less common than SQLi and XSS.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Buffer overflow
Why it's wrong here
Buffer overflow: Buffer overflows are a memory-corruption vulnerability that occurs in native code (e.g., C/C++) when data exceeds a buffer's boundary, potentially overwriting adjacent memory. Web applications built on managed languages (Java, .NET, Python) typically prevent this, and Burp Suite operates at the HTTP layer, making it unable to directly exploit or detect memory-level flaws. While a web application could call a vulnerable native library, this is not a standard web vulnerability and is far less relevant to Burp's testing focus than input-based issues.
- ✗
Insecure deserialization
Why it's wrong here
Insecure deserialization: Insecure deserialization occurs when an application deserializes untrusted data, allowing an attacker to manipulate object fields or trigger code execution. Burp Suite can test for this by sending crafted serialized payloads (e.g., Java, PHP, .NET), but it is less common than SQLi/XSS and requires deep knowledge of the application's internal classes. Burp's automated scanner is not specifically tuned to detect deserialization flaws as reliably as it does for injection attacks, so this is not a primary finding in routine web testing.
- ✓
Cross-site scripting (XSS)
Why this is correct
Cross-site scripting (XSS): XSS is a client-side injection vulnerability where an attacker injects malicious scripts into pages viewed by other users, enabling session hijacking, defacement, or credential theft. Burp Suite is highly effective at detecting XSS because its scanner automatically probes inputs with XSS payloads and its Intercepting Proxy allows manual testing of request/response pairs to confirm sanitization gaps. Since XSS appears in reflected, stored, and DOM-based forms and is pervasive in web applications, it is a classic vulnerability that Burp identifies with high confidence.
- ✗
Race condition
Why it's wrong here
Race condition: A race condition is a concurrency flaw where the outcome of a system depends on the timing of multiple processes, leading to unexpected behavior such as unauthorized transactions or data corruption. Burp Suite's core functionality focuses on HTTP message manipulation, session handling, and fuzzing, but it does not natively orchestrate simultaneous requests with precise timing to trigger race windows. While tools like Burp's Turbo Intruder can send concurrent requests, detecting a subtle race condition requires analyzing server-side state, which is not a standard scanner feature, making it rarely a direct finding.
- ✓
SQL injection
Why this is correct
SQL injection: SQL injection is a server-side vulnerability where an attacker inserts or manipulates SQL code in user input to alter database queries, potentially retrieving, modifying, or deleting data. Burp Suite's scanner actively tests for SQLi by injecting payloads (e.g., single quotes, UNION, time-based blind) and observing error responses, content differences, or time delays. Its automated scanner and manual repeater tool are specifically designed to confirm and exploit SQL injection, making it one of the most reliably detected serious web vulnerabilities.
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Security Metrics and KPIs
Key term
Security
Security in IT is the practice of protecting systems, networks, and data from unauthorized access, damage, or theft.
Key term
Insecure deserialization
An application security vulnerability that occurs when untrusted user data is deserialized without proper validation, potentially allowing an attacker to manipulate the application or execute malicious code.
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Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
This CS0-004 practice question is part of Courseiva's free CompTIA certification practice question bank. Courseiva provides original exam-style practice questions with explanations, topic-based practice, mock exams, readiness tracking, and study analytics to help learners prepare for the CS0-004 exam.