CWE-345 (对数据真实性的验证不充分) — Vulnerability Class 227

CWE-345 represents a critical integrity weakness where software fails to adequately verify the origin or authenticity of incoming data, leading to the acceptance of invalid or malicious inputs. Attackers typically exploit this vulnerability by injecting spoofed or tampered information, tricking the application into processing untrusted sources as legitimate. This can result in severe consequences, including data corruption, unauthorized access, or system compromise, as the software blindly trusts the manipulated payload. To mitigate this risk, developers must implement robust cryptographic verification mechanisms, such as digital signatures or message authentication codes, to ensure data integrity. Additionally, strict input validation and secure communication protocols like TLS should be employed to authenticate data sources. By rigorously validating the provenance of all external inputs, organizations can prevent attackers from exploiting trust assumptions and maintain the overall security posture of their systems against integrity-based attacks.