名前: Improper Validation of Certificate Expiration

A certificate expiration is not validated or is incorrectly validated.

一般情報

導入モード

Implementation : When the software uses certificate pinning, the developer might not properly validate all relevant components of the certificate before pinning the certificate. This can make it difficult or expensive to test after the pinning is complete.
Implementation : REALIZATION: This weakness is caused during implementation of an architectural security tactic.

適用可能なプラットフォーム

言語

クラス： Not Language-Specific (Undetermined)

一般的な結果

スコープ	影響	可能性
Integrity Other	Other 注記：The data read from the system vouched for by the expired certificate may be flawed due to malicious spoofing.
Authentication Other	Other 注記：Trust may be assigned to certificates that have been abandoned due to age.

観察された例

参考文献	説明
CVE-2025-4384	product does not verify that a certificate has expired
CVE-2007-3564	web library product does not verify that a certificate has expired
CVE-2007-6746	IRC product does not check the expiration date of the X.509 certificate

潜在的な緩和策

Phases : Architecture and Design
Check for expired certificates and provide the user with adequate information about the nature of the problem and how to proceed.
Phases : Implementation
If certificate pinning is being used, ensure that all relevant properties of the certificate are fully validated before the certificate is pinned, including the expiration.

検出方法

Automated Static Analysis

Automated static analysis, commonly referred to as Static Application Security Testing (SAST), can find some instances of this weakness by analyzing source code (or binary/compiled code) without having to execute it. Typically, this is done by building a model of data flow and control flow, then searching for potentially-vulnerable patterns that connect "sources" (origins of input) with "sinks" (destinations where the data interacts with external components, a lower layer such as the OS, etc.)

脆弱性マッピングノート

理由 : This CWE entry is at the Variant level of abstraction, which is a preferred level of abstraction for mapping to the root causes of vulnerabilities.
コメント : Carefully read both the name and description to ensure that this mapping is an appropriate fit. Do not try to 'force' a mapping to a lower-level Base/Variant simply to comply with this preferred level of abstraction.

参考文献

REF-18

The CLASP Application Security Process
Secure Software, Inc..
https://cwe.mitre.org/documents/sources/TheCLASPApplicationSecurityProcess.pdf

REF-44

24 Deadly Sins of Software Security
Michael Howard, David LeBlanc, John Viega.

登録情報

名前	組織	日付	リリース日	Version
CLASP		2006-07-19 +00:00	2006-07-19 +00:00	Draft 3

変更履歴

名前	組織	日付	コメント
Eric Dalci	Cigital	2008-07-01 +00:00	updated Time_of_Introduction
CWE Content Team	MITRE	2008-09-08 +00:00	updated Common_Consequences, Relationships, Other_Notes, Taxonomy_Mappings
CWE Content Team	MITRE	2009-03-10 +00:00	updated Description, Name, Relationships
CWE Content Team	MITRE	2009-05-27 +00:00	updated Demonstrative_Examples
CWE Content Team	MITRE	2009-07-27 +00:00	updated Demonstrative_Examples
CWE Content Team	MITRE	2009-10-29 +00:00	updated Description, Other_Notes
CWE Content Team	MITRE	2011-06-01 +00:00	updated Common_Consequences
CWE Content Team	MITRE	2012-05-11 +00:00	updated References, Relationships
CWE Content Team	MITRE	2013-02-21 +00:00	updated Applicable_Platforms, Demonstrative_Examples, Relationships, Type
CWE Content Team	MITRE	2013-07-17 +00:00	updated Relationships
CWE Content Team	MITRE	2014-07-30 +00:00	updated Relationships
CWE Content Team	MITRE	2017-11-08 +00:00	updated Demonstrative_Examples, Modes_of_Introduction, Relationships
CWE Content Team	MITRE	2018-03-27 +00:00	updated Common_Consequences, Modes_of_Introduction, Potential_Mitigations, Time_of_Introduction
CWE Content Team	MITRE	2019-09-19 +00:00	updated Demonstrative_Examples
CWE Content Team	MITRE	2020-02-24 +00:00	updated References, Relationships
CWE Content Team	MITRE	2023-04-27 +00:00	updated Relationships, Time_of_Introduction
CWE Content Team	MITRE	2023-06-29 +00:00	updated Mapping_Notes
CWE Content Team	MITRE	2025-12-11 +00:00	updated Relationships, Weakness_Ordinalities
CWE Content Team	MITRE	2026-04-30 +00:00	updated Common_Consequences, Description, Diagram, Observed_Examples
CWE Content Team	MITRE	2026-10-28 +00:00	updated Detection_Factors, Observed_Examples

CWE-298 詳細

CWE-298