GIAC Penetration Tester (GPEN) — Question 50

Which of the following is a WEP weakness that makes it easy to Inject arbitrary clear text packets onto a WEP network?

Answer options

• A. Reversible hashes use for IVs
• B. Cryptographically weak CRC32 checksum
• C. RC4 algorithm
• D. Small key space

Correct answer: D

Explanation

The small key space in WEP significantly limits the number of possible keys, making it easier for attackers to guess or brute-force the key. While other options highlight weaknesses in WEP, they do not directly relate to the ease of injecting packets like the small key space does.