The SecOps Group CAP Exam - Topic 4 Question 103 Discussion

Let's evaluate the two statements about NoSQL injection:

Statement A: NoSQL databases (e.g., MongoDB, Cassandra) are designed for scalability and flexibility, often sacrificing strict consistency for performance (e.g., eventual consistency in distributed systems). Unlike traditional SQL databases, they do not enforce rigid relational constraints, which simplifies scaling but does not eliminate the risk of injection attacks. Even without SQL syntax, NoSQL databases are vulnerable to injection if user input is not sanitized (e.g., in MongoDB, injecting $where or $ne operators). This statement is true.

Statement B: NoSQL database queries are typically written in the application's programming language (e.g., JavaScript for MongoDB), using a custom API (e.g., MongoDB's query API), or formatted in standards like JSON, XML, or LINQ. For example, a MongoDB query might look like db.collection.find({ 'key': input }), where input is a JSON-like structure. This statement accurately describes how NoSQL queries are constructed and is true.

Option A ('A is true, and B is false'): Incorrect, as both statements are true.

Option B ('A is false, and B is true'): Incorrect, as both statements are true.

Option C ('Both A and B are false'): Incorrect, as both statements are true.

Option D ('Both A and B are true'): Correct, as both statements accurately describe NoSQL databases and their vulnerability to injection.

The correct answer is D, aligning with the CAP syllabus under 'NoSQL Injection' and 'Database Security.'