Internet TCP port 69 is primarily used by the Trivial File Transfer Protocol (TFTP). TFTP is a simple, lock-step, file transfer protocol which allows a client to get or put a file onto a remote host. One of its primary uses is in the early stages of nodes booting from a Local Area Network. Examples of software that use this port include tftpd, a server for TFTP, and tftp-hpa, a client for TFTP.
TCP port 69 is associated with the Trivial File Transfer Protocol (TFTP), which is a simple, lock-step, file transfer protocol with minimal memory and footprint requirements. In the past, hackers have exploited this port to initiate attacks by transferring malicious files or code. They could also potentially use it to exfiltrate sensitive data from a compromised system. Additionally, since TFTP lacks security features such as authentication or encryption, it can be exploited to perform man-in-the-middle attacks. Furthermore, hackers can use port 69 to launch Denial of Service (DoS) attacks, overloading the server with requests and causing it to become unresponsive.
