CWE-324: Use of a Key Past its Expiration Date
Description
The product uses a cryptographic key or password past its expiration date, which diminishes its safety significantly by increasing the timing window for cracking attacks against that key.
Submission Date :
July 19, 2006, midnight
Modification Date :
2023-10-26 00:00:00+00:00
Organization :
MITRE
Extended Description
While the expiration of keys does not necessarily ensure that they are compromised, it is a significant concern that keys which remain in use for prolonged periods of time have a decreasing probability of integrity. For this reason, it is important to replace keys within a period of time proportional to their strength.
Example - 1
The following code attempts to verify that a certificate is valid.
// //do stuff//
foo=SSL_get_verify_result(ssl);if ((X509_V_OK==foo) || (X509_V_ERRCERT_NOT_YET_VALID==foo))if (cert = SSL_get_peer_certificate(ssl)) {}The code checks if the certificate is not yet valid, but it fails to check if a certificate is past its expiration date, thus treating expired certificates as valid.
Related Weaknesses
This table shows the weaknesses and high level categories that are related to this weakness. These relationships are defined to give an overview of the different insight to similar items that may exist at higher and lower levels of abstraction.
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