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CWE-205 詳細

CWE-205

Observable Behavioral Discrepancy
2006-07-19
00h00 +00:00
Incomplete
2026-10-28
00h00 +00:00
CWE Mitre.org
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名前: Observable Behavioral Discrepancy

The product's behaviors indicate important differences that may be observed by unauthorized actors in a way that reveals (1) its internal state or decision process, or (2) differences from other products with equivalent functionality.

一般情報

導入モード

Architecture and Design
Implementation

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
Confidentiality
Access Control		Read Application Data, Bypass Protection Mechanism

注記：Attackers could use knowledge of these internal operations to simplify or optimize their attack. In some cases, behavioral discrepancies can be used by attackers to form a side channel.

観察された例

参考文献 説明

CVE-2002-0208

Product modifies TCP/IP stack and ICMP error messages in unusual ways that show the product is in use.

CVE-2004-2252

Behavioral infoleak by responding to SYN-FIN packets.

潜在的な緩和策

Phases : Implementation
Ideally, a product should provide as little information about its internal operations as possible.

脆弱性マッピングノート

理由 : This CWE entry is at the Base 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.

関連する攻撃パターン

CAPEC ID 攻撃パターン名
CAPEC-541 Application Fingerprinting
An adversary engages in fingerprinting activities to determine the type or version of an application installed on a remote target.
CAPEC-580 System Footprinting
An adversary engages in active probing and exploration activities to determine security information about a remote target system. Often times adversaries will rely on remote applications that can be probed for system configurations.

登録情報

名前 組織 日付 リリース日 Version
PLOVER 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 Relationships, Taxonomy_Mappings
CWE Content Team MITRE 2008-10-14 +00:00 updated Description
CWE Content Team MITRE 2009-12-28 +00:00 updated Description, Name
CWE Content Team MITRE 2010-02-16 +00:00 updated Taxonomy_Mappings
CWE Content Team MITRE 2011-06-01 +00:00 updated Common_Consequences
CWE Content Team MITRE 2012-05-11 +00:00 updated Relationships
CWE Content Team MITRE 2012-10-30 +00:00 updated Potential_Mitigations
CWE Content Team MITRE 2014-07-30 +00:00 updated Relationships
CWE Content Team MITRE 2017-11-08 +00:00 updated Applicable_Platforms
CWE Content Team MITRE 2020-02-24 +00:00 updated Description, Name, Observed_Examples, Relationships
CWE Content Team MITRE 2020-08-20 +00:00 updated Relationships
CWE Content Team MITRE 2021-10-28 +00:00 updated Relationships
CWE Content Team MITRE 2023-01-31 +00:00 updated Related_Attack_Patterns
CWE Content Team MITRE 2023-04-27 +00:00 updated Relationships
CWE Content Team MITRE 2023-06-29 +00:00 updated Mapping_Notes
CWE Content Team MITRE 2025-12-11 +00:00 updated Weakness_Ordinalities
CWE Content Team MITRE 2026-10-28 +00:00 updated Common_Consequences, Description, Potential_Mitigations
CVE Findに掲載されている情報は、慎重に選定された複数の参照ソースから取得されています。CVEデータはMITRE Corporationおよび国家脆弱性データベース（NVD）が提供しています。既知の悪用された脆弱性（KEV）カタログはサイバーセキュリティ・インフラセキュリティ庁（CISA）から、EPSSスコアはFIRST.orgから取得しています。また、ソフトウェアの弱点（CWE）および共通攻撃パターン（CAPEC）に関するデータはMITRE Corporationが管理し、ハードウェアおよびソフトウェア構成（CPE）に関する情報はNVDが提供しています。