Use of a Key Past its Expiration Date

Opis

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.

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.

Skutki

• Access Control

  Bypass Protection Mechanism; Gain Privileges or Assume Identity

  The cryptographic key in question may be compromised, providing a malicious user with a method for authenticating as the victim.

Zapobieganie

• Architecture and Design

  Adequate consideration should be put in to the user interface in order to notify users previous to the key's expiration, to explain the importance of new key generation and to walk users through the process as painlessly as possible.

Przykłady podatności

• CVE-2021-33020 Picture Archiving and Communication System (PACS) system for hospitals uses a cryptographic key or password past its expiration date

Słabość nadrzędna

• CWE-672 Operation on a Resource after Expiration or Release

Pokrewna

• CWE-298 Improper Validation of Certificate Expiration

Kiedy powstaje

• Architecture and Design — REALIZATION: This weakness is caused during implementation of an architectural security tactic.

Dotyczy

Not Language-Specific

Źródła

1. 24 Deadly Sins of Software Security — Michael Howard, David LeBlanc, John Viega, "Sin 23: Improper Use of PKI, Especially SSL." Page 347, McGraw-Hill, 2010
2. The CLASP Application Security Process — Secure Software, Inc., 2005