名称: Key Exchange without Entity Authentication

The product performs a key exchange with an actor without verifying the identity of that actor.

基本信息

背景详情

引入方式

Architecture and Design : OMISSION: This weakness is caused by missing a security tactic during the architecture and design phase.

适用平台

编程语言

类： Not Language-Specific (Undetermined)

常见后果

影响范围	影响	可能性
Access Control	Bypass Protection Mechanism 注意： No authentication takes place in the key exchange process itself, bypassing an assumed protection of encryption. This may enable an attacker to impersonate an actor by modifying traffic between the two entities. Typically, this involves a victim client that contacts a malicious server that is impersonating a trusted server. If the client skips authentication or ignores an authentication failure, the malicious server may request authentication information from the user. The malicious server can then use this authentication information to log in to the trusted server using the victim's credentials, sniff traffic between the victim and trusted server, etc.
Confidentiality	Read Application Data 注意： The encrypted communication between a user and a trusted host may be subject to sniffing by any actor in the communication path.

潜在缓解措施

Phases : Architecture and Design
Ensure that proper authentication is included in the system design.
Phases : Implementation
Understand and properly implement all checks necessary to ensure the identity of entities involved in encrypted communications.

检测方法

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.)

漏洞映射说明

依据 : 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.
备注 : 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.

参考资料

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.

REF-62

The Art of Software Security Assessment
Mark Dowd, John McDonald, Justin Schuh.

提交记录

名称	组织	日期	发布日期	Version
CLASP		2006-07-19 +00:00	2006-07-19 +00:00	Draft 3

修改记录

名称	组织	日期	备注
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	2008-10-10 +00:00	clarified the description
CWE Content Team	MITRE	2008-10-14 +00:00	updated Description, Other_Notes
CWE Content Team	MITRE	2009-07-27 +00:00	updated Relationships
CWE Content Team	MITRE	2011-06-01 +00:00	updated Common_Consequences
CWE Content Team	MITRE	2011-06-27 +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 Relationships
CWE Content Team	MITRE	2013-07-17 +00:00	updated Applicable_Platforms, Relationships
CWE Content Team	MITRE	2014-07-30 +00:00	updated Relationships
CWE Content Team	MITRE	2017-11-08 +00:00	updated Modes_of_Introduction, Relationships
CWE Content Team	MITRE	2020-02-24 +00:00	updated Common_Consequences, Demonstrative_Examples, Description, References, Relationships
CWE Content Team	MITRE	2021-10-28 +00:00	updated Relationships
CWE Content Team	MITRE	2023-01-31 +00:00	updated Description, Relationships
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 Detection_Factors, Relationships, Weakness_Ordinalities
CWE Content Team	MITRE	2026-10-28 +00:00	updated Background_Details, Common_Consequences, Description

CWE-322 详情

CWE-322