CWE-258 (配置文件中缺省空口令) — Vulnerability Class 9

CWE-258 represents a critical configuration weakness where systems allow authentication using an empty string as a password. This flaw typically arises when developers fail to enforce password policies or inadvertently leave default credentials unchanged during deployment. Attackers exploit this vulnerability by attempting to access sensitive resources or administrative interfaces without providing any credentials, effectively bypassing security controls entirely. Such unauthorized access can lead to data breaches, system compromise, or lateral movement within a network. To prevent this, developers must implement robust validation mechanisms that reject empty or null password inputs during both configuration and runtime. Enforcing strong password complexity requirements, utilizing multi-factor authentication, and regularly auditing configuration files for default or blank credentials are essential practices. Additionally, automated security scanning tools should be integrated into the development lifecycle to detect and flag these insecure configurations before they reach production environments.