ECCouncil 312-50v13 Exam With Confidence Using Practice Dumps

The correct answer is A. LDAP Injection.

The scenario describes malicious input being inserted into directory-based search logic used to validate identities. LDAP is commonly used for centralized directory authentication and account lookups. When user input is embedded directly into LDAP filters without proper validation, an attacker can alter the filter logic using operators, wildcards, and special LDAP syntax.

CEH-aligned material states that LDAP injection takes advantage of non-validated input and that an attacker may access information by using an LDAP filter to search the directory database . Another CEH exam reference explains that LDAP injection exploits applications that construct LDAP statements based on user input and pass that input directly into LDAP queries .

Option B. OS Command Injection is incorrect because the scenario does not involve operating system commands.

Option C. SQL Injection is incorrect because the backend lookup is directory-based, not relational database SQL.

Option D. XPath Injection is incorrect because XPath injection targets XML query expressions, not LDAP directory filters.

Therefore, the best answer is A. LDAP Injection.

CEH training outlines the standard methodology for attacking WPA2-PSK networks: capture the 4-way handshake and then attempt offline cracking of the pre-shared key. The most reliable way to force handshake generation is to perform a de-authentication attack using tools like Aireplay-ng. This attack momentarily disconnects a wireless client, forcing it to reauthenticate with the access point. During this reauthentication, the AP and client exchange the 4-way handshake packets necessary for offline cracking. CEH emphasizes that WPA2 encryption itself cannot be brute-forced directly; attackers must obtain the handshake and then apply dictionary or brute-force attacks offline. Attempting XSS or router spoofing does not capture the handshake and is unrelated to WPA2 key extraction. The deauth attack is also a classic wireless attack vector described extensively in CEH because it is effective, does not require interaction with the encryption algorithm, and works regardless of the strength of the AP’s passphrase. Once the handshake is captured, tools such as Hashcat are used to attempt key recovery.

The correct answer is B. Global Catalog Service (TCP/UDP 3268).

The key indicators are directory-related information across multiple domains, organization-wide object searches, and the dedicated port 3268. The CEH enumeration reference lists LDAP on TCP/UDP 389 and Global Catalog Service on TCP/UDP 3268 as separate services used during enumeration .

The Global Catalog is used in Active Directory environments to search directory objects across the forest, not merely within a single domain. This fits the scenario better than standard LDAP on port 389.

Option A is incorrect because Microsoft RPC Endpoint Mapper on port 135 maps RPC services, not forest-wide directory objects.

Option C is incorrect because LDAP on port 389 is directory access, but the scenario specifically describes cross-domain/global directory searches.

Option D is incorrect because SIP is used for voice/video signaling, not Active Directory enumeration.

Therefore, the best answer is B. Global Catalog Service (TCP/UDP 3268).