Web Service Attacks are associated with which type of vulnerability?

Web Service Attacks are associated with which type of vulnerability?

• A. Denial of Service
• B. Injection Flaws
• C. Phishing
• D. Man-in-the-middle

Answer: (B)

Injection flaws are the vulnerability class most closely tied to web service attacks. Web services commonly accept input parameters that are then used to build queries, commands, or logic executed by interpreters, databases, or other back-end systems. If this input isn’t properly validated or parameterized, an attacker can craft data that alters the intended behavior—such as modifying a database query, bypassing authentication, or executing unintended commands. This makes injection flaws a fundamental risk in web services, as many of the service’s exposure points rely on processing input that reaches a back-end interpreter. Denial of Service focuses on exhausting resources rather than exploiting a vulnerability in how inputs are handled. Phishing targets people, not the service’s input processing. Man-in-the-middle concerns interception or manipulation of communications rather than the vulnerability type within the service itself.

Injection flaws are the vulnerability class most closely tied to web service attacks. Web services commonly accept input parameters that are then used to build queries, commands, or logic executed by interpreters, databases, or other back-end systems. If this input isn’t properly validated or parameterized, an attacker can craft data that alters the intended behavior—such as modifying a database query, bypassing authentication, or executing unintended commands. This makes injection flaws a fundamental risk in web services, as many of the service’s exposure points rely on processing input that reaches a back-end interpreter.

Denial of Service focuses on exhausting resources rather than exploiting a vulnerability in how inputs are handled. Phishing targets people, not the service’s input processing. Man-in-the-middle concerns interception or manipulation of communications rather than the vulnerability type within the service itself.