CWE-263 (口令老化拥有过长有效期) — Vulnerability Class 1

CWE-263 represents a configuration weakness where password aging policies are implemented but configured with excessively long expiration periods. This flaw allows attackers significantly more time to conduct offline password cracking or brute-force attacks against compromised credential databases before the system forces a password rotation. By extending the validity window, the window of opportunity for unauthorized access increases, potentially leading to prolonged unauthorized system access if the password is eventually cracked. Developers mitigate this risk by adhering to established security standards, such as NIST guidelines, which recommend shorter, reasonable expiration intervals that balance security requirements with user convenience. Implementing dynamic password policies that adjust expiration times based on risk factors further enhances protection, ensuring that credentials do not remain valid long enough to be successfully compromised through persistent attack vectors.