GCIH · Question #280
In which of the following attacking methods does an attacker distribute incorrect IP address?
The correct answer is C. DNS poisoning. DNS poisoning is the attack where an attacker injects false DNS records associating domain names with incorrect IP addresses, redirecting victims to malicious servers.
Question
In which of the following attacking methods does an attacker distribute incorrect IP address?
Options
- AIP spoofing
- BMac flooding
- CDNS poisoning
- DMan-in-the-middle
How the community answered
(17 responses)- A6% (1)
- B6% (1)
- C88% (15)
Why each option
DNS poisoning is the attack where an attacker injects false DNS records associating domain names with incorrect IP addresses, redirecting victims to malicious servers.
IP spoofing falsifies the source IP address in packet headers to impersonate another host, but does not distribute incorrect IP-to-domain mappings to resolvers or other systems.
MAC flooding overwhelms a switch's CAM table with fake MAC addresses to force it into hub mode - it is a Layer 2 attack entirely unrelated to IP address distribution.
In DNS poisoning (also called DNS cache poisoning), an attacker corrupts a DNS resolver's cache by inserting fraudulent resource records that map legitimate domain names to attacker-controlled IP addresses. Clients querying the poisoned resolver receive the incorrect IP addresses and are silently redirected to malicious destinations without their knowledge.
A man-in-the-middle attack intercepts and possibly modifies traffic between two parties but is not specifically defined by distributing incorrect IP addresses to DNS resolvers or clients.
Concept tested: DNS cache poisoning distributing incorrect IP addresses
Source: https://www.cisa.gov/news-events/alerts/2008/07/08/multiple-dns-implementations-vulnerable-cache-poisoning
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