What security concern do ICMP echo request messages and echo response messages bring?
A) attackers can disable the other host
B) attackers can learn that the other host's IP address is in use
C) attackers can change the other host's IP address
D) all of the above.

Question

Quizplus · Accepted Answer

ICMP echo request messages and echo response messages (commonly known as "ping") do not pose a direct security risk. However, they can reveal that a network host is active and therefore potentially vulnerable to further attacks. Attackers can use ping to map out a network and determine which IP addresses are in use. This information can be used for various malicious purposes, such as launching a denial-of-service attack or attempting to exploit vulnerabilities on the network.

What Security Concern Do ICMP Echo Request Messages and Echo