アナリストは、次の Web サーバー ログ エントリを確認します。 %2E%2E/%2E%2E/%2ES2E/%2E%2E/%2E%2E/%2E%2E/etc/passwd 攻撃や悪意のある試みは発見されていません。何が起こったのかを最もよく表しているのは次のうちどれですか?
正解:D
Comprehensive and Detailed Step-by-Step Explanation:Directory traversal, also known as path traversal, is an attack that allows attackers to access restricted directories and execute commands outside the web server's root directory. The %2E encoding corresponds to a dot (.) in ASCII, and %2E%2E resolves to ../. The log entries indicate attempts to navigate directories upward to access sensitive files like /etc/passwd. Since no malicious activity was flagged, it is inferred this was either an unsuccessful or reconnaissance attempt. References: CompTIA CySA+ Study Guide (Chapter 3: Malicious Activity, Page 79) CompTIA CySA+ Objectives (Domain 1.2 - Indicators of Potentially Malicious Activity)