What type of attack has been executed when devices are planted to capture documents sent to printers?

In the scenario where devices are planted to capture documents sent to printers, this describes a Man-in-the-Middle (MITM) attack. In a MITM attack, an attacker intercepts messages between two parties—such as a computer and a printer—to eavesdrop or manipulate the data being transmitted. By placing a device in the communication path, the attacker can capture sensitive documents intended for printing, which can lead to unauthorized access to confidential information.

This type of attack exploits the vulnerabilities in network communications, allowing the attacker to gain insight into the data being transferred without the knowledge of the sender or receiver. In this case, the printer is the end point, and the attacker is able to intercept prints, thereby compromising the confidentiality of the documents printed.

The other types of attacks mentioned do not fit this context as closely as a MITM attack. Phishing attacks typically involve deception to trick a user into providing personal information, Cross-site scripting serves to exploit vulnerabilities in web applications by injecting malicious scripts into the webpages viewed by other users, and Social engineering relies heavily on manipulating individuals rather than intercepting data in transit. Each of these attacks operates through different methodologies and objectives, which distinguishes them from the capabilities demonstrated in this scenario.