Computer Hacking Forensic Investigator (CHFI) Practice Exam

In the context of a new line injection attack, the most relevant aspect is the ability of an attacker to manipulate how data is recorded in a log file by injecting characters that can affect the formatting or structure of the log data. Injecting plaintext could be part of a broader strategy to include unexpected characters, such as new line (LF or CRLF) characters, into the log entries. This can cause the log file to misinterpret the input, potentially allowing for additional malicious commands to be executed or for sensitive information to be exposed in ways not intended by the system's original design.

Historical examples of attacks often leverage plaintext injections, which include the use of newline characters. By achieving a formatted log entry that breaks out of its expected bounds, the attacker can execute further malicious actions, such as creating additional log entries, performing log tampering, or even executing shell commands in systems that process logs improperly.

While other options like pipe characters or HTML tags might also have their uses in other attack vectors or circumstances, they do not specifically relate to the classic implementation of a new line injection attack in the manner that plaintext does, since it is the ability to create new lines that's crucial for breaking the structured format expected in a log file.