CPENT Iot And OT Exploitation Practice Question
An ethical hacker is evaluating a Bluetooth Low Energy (BLE) medical sensor. Which TWO of the following vulnerabilities or attack vectors are commonly associated with insecure BLE implementations in IoT devices? (Choose TWO)
Answer choices
Why each option matters
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Static or hardcoded pairing PINs (e.g., '0000' or '1234') susceptible to sniffing and brute-forcing
BLE implementations frequently suffer from lack of encryption/pairing authentication, insecure GATT characteristic permissions allowing arbitrary reads/writes, and predictable static pairing PINs.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Executing a remote buffer overflow against the Linux kernel via wireless 802.11 management frames
Why it's wrong here
802.11 management frames pertain to Wi-Fi networks, not Bluetooth Low Energy architectures.
- ✓
Static or hardcoded pairing PINs (e.g., '0000' or '1234') susceptible to sniffing and brute-forcing
Why this is correct
Using static or weak pairing PINs allows attackers to sniff pairing exchanges or brute-force the PIN to establish an encrypted connection.
- ✗
Injecting malicious SQL statements into the BLE radio frequency advertising packets
Why it's wrong here
SQL injection targets relational database backends via web applications, not raw BLE advertising packets.
- ✗
Performing an ARP cache poisoning attack against the target device's switch port
Why it's wrong here
ARP poisoning is an Ethernet/IP network-layer attack, not applicable to BLE point-to-point wireless connections.
- ✓
Insecure GATT characteristics allowing unauthorized unauthenticated read and write operations
Why this is correct
Developers often fail to set proper permission flags on GATT characteristics, allowing any connected central device to read or modify sensitive data.
About these practice questions
This CPENT question is part of Courseiva's 276-question bank — original exam-style content with full explanations and wrong-answer analysis, never real exam questions or exam dumps. Learn why practice questions differ from exam dumps →
JA
Written and reviewed by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
Last reviewed August 2026 · checked against the official EC-Council exam blueprint
This CPENT practice question is part of Courseiva's free EC-Council certification practice question bank. Courseiva provides original exam-style practice questions with explanations, topic-based practice, mock exams, readiness tracking, and study analytics to help learners prepare for the CPENT exam.