312-50v13 Exam Dumps : Certified Ethical Hacker Exam (CEH v13 AI)

CEH v13 emphasizes that insecure deserialization is one of the most dangerous application vulnerabilities because it can lead to arbitrary code execution, bypassing authentication, authorization, and session protections entirely.

Even with MFA, encrypted cookies, and WAFs, deserialization flaws allow attackers to manipulate serialized objects used in session handling. When deserialized without validation, these objects may execute attacker-controlled code.

CSRF relies on authenticated users. Side jacking is mitigated by encryption. Session fixation is ineffective if session regeneration and MFA are implemented. Insecure deserialization, however, attacks the application logic itself, making it the most effective option.

Thus, Option D is correct.

DNS interrogation is a core passive and semi-active reconnaissance technique described in CEH v13 Reconnaissance Techniques. It allows ethical hackers to gather publicly available information about a target’s domain infrastructure.

Through DNS queries, testers can retrieve:

Subdomains (via zone transfers, brute force, or DNS records)

Mail server IP addresses (via MX records)

Server IP addresses, which can then be mapped to approximate geographic locations

However, DNS does not store authentication credentials such as usernames and passwords. That information resides in authentication systems like Active Directory, LDAP, or application databases, not DNS.

Therefore, Option A is the only choice that cannot be obtained via DNS interrogation. CEH v13 clearly distinguishes between naming infrastructure data and credential-based information, reinforcing why DNS enumeration cannot reveal user credentials.

Thus, Option A is correct.

The correct answer is B, Reaver. Reaver is the well-known wireless attack tool used to target Wi-Fi Protected Setup, especially the WPS PIN mechanism. In wireless hacking, WPS PIN attacks attempt to recover or validate the router’s WPS PIN and then derive access to the WPA/WPA2 pre-shared key. This is different from normal WPA/WPA2 cracking, where attackers commonly capture authentication handshakes and use dictionary or brute-force attacks against the passphrase. CEH wireless-hacking material notes that WPA/WPA2 cracking commonly involves capturing WPA/WPA2 authentication traffic and using tools such as Aircrack for offline cracking. Kismet is mainly used for wireless discovery/sniffing, and Wireshark is a packet analyzer, not a WPS PIN attack tool. Aircrack is associated with WEP/WPA/WPA2 cracking, but not specifically WPS PIN attacks. Therefore, the tool that specifically targets WPA/WPS PIN weakness is Reaver.