What type of injection flaw involves the injection of malicious code through a web application?

The focus of the question is on different types of injection flaws that can occur in web applications, all of which involve the injection of malicious code in varying contexts.

Command injection refers specifically to the execution of arbitrary commands on a host operating system via a vulnerable application. This typically occurs when user inputs are not properly sanitized, allowing an attacker to execute unintended commands within the system.

LDAP (Lightweight Directory Access Protocol) injection is a similar vulnerability, but it pertains to LDAP queries. Attackers exploit poor input validation within an application to manipulate LDAP queries, potentially granting unauthorized access to information or undermining authentication processes.

SQL injection is one of the most common and well-known injection flaws, where an attacker inserts or "injects" malicious SQL statements into a query through an application's input fields. If the application fails to validate inputs correctly, this can lead to unauthorized data manipulation or retrieval from the database.

All of these types of injection attacks involve the exploitation of vulnerabilities in web applications and the injection of malicious code or commands. By recognizing that the term "injection flaw" encompasses various forms of attacks (including command injection, LDAP injection, and SQL injection), it becomes clear why the answer reflects that all choices are valid types of injection flaws. Each represents a