Identifying Ping of Death Attack by Oversized Packets
A large enterprise has been experiencing sporadic system crashes and instability, resulting in limited access to its web services. The security team suspects it could be a result of a Denial of Service (DoS) attack. A significant increase in traffic was noticed in the network logs, with patterns suggesting packet sizes exceeding the prescribed size limit. Which among the following DoS attack techniques best describes this scenario?
Community Votes
100% of anonymous learners picked answer D. Votes are pick records left by other test-takers — they are not the verified answer.
Community Insight
The core concept tested is DoS attack classification, with the common trap being the confusion between volume-based floods and fragmentation/size-based attacks.
This question tests the ability to identify a Denial of Service attack based on packet size anomalies. The correct answer is D because oversized ICMP packets are the defining characteristic of the Ping of Death.
Learners often choose UDP flood or Smurf attacks because they involve high traffic volume, but these do not inherently require sending malformed or oversized packets.
Community Discussion (4 comments)
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Expert Analysis
Why the Answer Is Correct
The scenario describes a situation where traffic patterns show "packet sizes exceeding the prescribed size limit." This is the textbook definition of a Ping of Death (PoD) attack. In a PoD attack, an attacker sends ICMP echo request packets that are larger than the maximum allowable size (65,535 bytes), often fragmented to bypass firewalls. When the target system reassembles these packets, it causes buffer overflows, leading to system crashes or instability.Why the Other Options Are Wrong
A Smurf attack (Option A) relies on amplification using broadcast addresses and ICMP, but focuses on volume rather than packet size violations. A UDP flood (Option B) involves sending a high rate of UDP packets to random ports, filling up bandwidth, without necessarily exceeding size limits. A Pulse wave attack (Option C) is a variation of a flood attack characterized by bursts of traffic followed by quiet periods, again focusing on timing and volume rather than packet structure anomalies like size.Community Comment Notes
The community consensus strongly supports Option D. As user 91a0021 noted, "Ping of Death... occurs when an attacker sends malformed or oversized ICMP packets... causing buffer overflows." User Dogeo also confirmed this by stating the attack involves "pings... that exceed the maximum allowable size." These comments correctly align the symptom (oversized packets) with the specific attack vector.Exam Strategy
When analyzing DoS scenarios, distinguish between 'volume' attacks (floods) and 'structural' attacks (fragmentation/size). Keywords like 'oversized', 'malformed', or 'exceeding size limit' point directly to Ping of Death or Teardrop attacks.
Frequently Asked Questions
Why is UDP Flood incorrect if there is a significant increase in traffic?
UDP Flood focuses on bandwidth saturation via high packet rates, whereas the prompt specifically highlights packet size violations, which is unique to Ping of Death.
Does Ping of Death still work on modern systems?
Most modern operating systems have patched against Ping of Death by handling fragmented packets safely, but it remains a critical concept for certification exams regarding historical DoS vectors.