GenSec Inc, a UK-Based Company, Uses Oracle Database to Store

GenSec Inc, a UK-based company, uses Oracle database to store all its data. The company also uses Oracle DataBase Vault to restrict users access to specific areas of their database. GenSec hired a senior penetration tester and security auditor named Victor to check the vulnerabilities of the company's Oracle DataBase Vault. He was asked to find all the possible vulnerabilities that can bypass the company's Oracle DB Vault. Victor tried different kinds of attacks to penetrate into the company's Oracle DB Vault and succeeded. Which of the following attacks can help Victor to bypass GenSec's Oracle DB Vault?

A) Man-in-the-Middle Attack
B) Denial-of-Service Attack
C) Replay Attack
D) SQL Injection