Certified Incident Handler (CIH) Practice Ecam

Which of the following is an integrity attack on a wireless network?

1. Packet sniffing

2. Data frame injection

3. Session hijacking

4. Rogue access point

The correct answer is: Data frame injection

Data frame injection is an integrity attack on a wireless network because it involves the unauthorized injection of frames into the communication stream. This can lead to unauthorized data alterations or the introduction of malicious content, thereby compromising the integrity of the data being transmitted. In essence, the attacker modifies or adds information to the data being sent, which can result in data being corrupted or manipulated in a way that it was not intended by the original sender. In contrast, packet sniffing primarily involves capturing traffic as it flows through the network, allowing the attacker to see unencrypted data but not altering it. Session hijacking aims to take over an active session, which involves compromising the confidentiality and integrity of the session tokens, but it is typically categorized as a different type of attack. A rogue access point serves to lure users into connecting to it instead of a legitimate access point, posing risks primarily to confidentiality and availability rather than direct integrity attacks. Thus, data frame injection stands out as the most direct means to compromise the integrity of the data in a wireless communication scenario.