CWE-299—Improper Check for Certificate Revocation

Weakness Name

Improper Check for Certificate Revocation

Description

The product does not check or incorrectly checks the revocation status of a certificate, which may cause it to use a certificate that has been compromised.

An improper check for certificate revocation is a far more serious flaw than related certificate failures. This is because the use of any revoked certificate is almost certainly malicious. The most common reason for certificate revocation is compromise of the system in question, with the result that no legitimate servers will be using a revoked certificate, unless they are sorely out of sync.

Common Consequences

Scope:

Access Control

Impact:

Gain Privileges or Assume Identity

Notes:

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

Scope:

Integrity, Other

Impact:

Other

Notes:

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

Scope:

Confidentiality

Impact:

Read Application Data

Notes:

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

Related Weaknesses

• CWE-295Improper Certificate Validation
• CWE-404Improper Resource Shutdown or ReleaseMedium