CWE-370—Missing Check for Certificate Revocation after Initial Check

名称

Missing Check for Certificate Revocation after Initial Check

描述

The product does not check the revocation status of a certificate after its initial revocation check, which can cause the product to perform privileged actions even after the certificate is revoked at a later time.

If the revocation status of a certificate is not checked before each action that requires privileges, the system may be subject to a race condition. If a certificate is revoked after the initial check, all subsequent actions taken with the owner of the revoked certificate will lose all benefits guaranteed by the certificate. In fact, it is almost certain that the use of a revoked certificate indicates malicious activity.

常见后果

范围：

Access Control

影响：

Gain Privileges or Assume Identity

注释：

Trust may be assigned to an entity who is not who it claims to be.

范围：

Integrity

影响：

Modify Application Data

注释：

Data from an untrusted (and possibly malicious) source may be integrated.

范围：

Confidentiality

影响：

Read Application Data

注释：

Data may be disclosed to an entity impersonating a trusted entity, resulting in information disclosure.

相关 CWE

• CWE-296Improper Following of a Certificate's Chain of TrustLow
• CWE-297Improper Validation of Certificate with Host MismatchHigh
• CWE-298Improper Validation of Certificate ExpirationLow
• CWE-299Improper Check for Certificate RevocationMedium