이름: Improper Verification of Source of a Communication Channel

The product establishes a communication channel to handle an incoming request that has been initiated by an actor, but it does not properly verify that the request is coming from the expected origin.

일반 정보

취약점 도입 방식

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

적용 가능한 플랫폼

언어

클래스: Not Language-Specific (Undetermined)

기술

클래스: Mobile (Undetermined)

일반적인 결과

범위	영향	가능성
Access Control Other	Gain Privileges or Assume Identity, Varies by Context, Bypass Protection Mechanism 참고: An attacker from an untrusted origin could successfully establish a communication channel. The attacker could then gain privileges and access unexpected functionality that was only intended for trusted sources.

관찰된 예시

참고 자료	설명
CVE-2025-3651	desktop product does not properly verify the source of a communication channel, allowing command execution
CVE-2000-1218	DNS server can accept DNS updates from hosts that it did not query, leading to cache poisoning
CVE-2005-0877	DNS server can accept DNS updates from hosts that it did not query, leading to cache poisoning
CVE-2001-1452	DNS server caches glue records received from non-delegated name servers

잠재적 완화 방법

Phases : Architecture and Design

취약점 매핑 메모

근거 : 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.
댓글 : 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.

관련 공격 패턴

CAPEC ID	공격 패턴 이름
CAPEC-500	WebView Injection An adversary, through a previously installed malicious application, injects code into the context of a web page displayed by a WebView component. Through the injected code, an adversary is able to manipulate the DOM tree and cookies of the page, expose sensitive information, and can launch attacks against the web application from within the web page.
CAPEC-594	Traffic Injection An adversary injects traffic into the target's network connection. The adversary is therefore able to degrade or disrupt the connection, and potentially modify the content. This is not a flooding attack, as the adversary is not focusing on exhausting resources. Instead, the adversary is crafting a specific input to affect the system in a particular way.
CAPEC-595	Connection Reset In this attack pattern, an adversary injects a connection reset packet to one or both ends of a target's connection. The attacker is therefore able to have the target and/or the destination server sever the connection without having to directly filter the traffic between them.
CAPEC-596	TCP RST Injection An adversary injects one or more TCP RST packets to a target after the target has made a HTTP GET request. The goal of this attack is to have the target and/or destination web server terminate the TCP connection.

메모

While many access control issues involve authenticating the user, this weakness is more about authenticating the actual source of the communication channel itself; there might not be any "user" in such cases.

참고 자료

REF-324

A Taxonomy of Security Faults in the UNIX Operating System
Taimur Aslam.
https://cwe.mitre.org/documents/sources/ATaxonomyofSecurityFaultsintheUNIXOperatingSystem%5BAslam95%5D.pdf

제출

이름	조직	날짜	출시일	Version
CWE Content Team	MITRE	2014-02-13 +00:00	2014-02-19 +00:00	2.6

수정 사항

이름	조직	날짜	댓글
CWE Content Team	MITRE	2017-11-08 +00:00	updated Modes_of_Introduction, References, Relationships
CWE Content Team	MITRE	2019-06-20 +00:00	updated Related_Attack_Patterns
CWE Content Team	MITRE	2020-02-24 +00:00	updated Applicable_Platforms, Potential_Mitigations, Relationships
CWE Content Team	MITRE	2020-06-25 +00:00	updated Demonstrative_Examples, Potential_Mitigations
CWE Content Team	MITRE	2021-07-20 +00:00	updated Potential_Mitigations
CWE Content Team	MITRE	2021-10-28 +00:00	updated Relationships
CWE Content Team	MITRE	2022-10-13 +00:00	updated Relationships
CWE Content Team	MITRE	2023-01-31 +00:00	updated Description, 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, Relationships
CWE Content Team	MITRE	2024-11-19 +00:00	updated References
CWE Content Team	MITRE	2025-12-11 +00:00	updated Common_Consequences, Relationships, Weakness_Ordinalities
CWE Content Team	MITRE	2026-04-30 +00:00	updated Observed_Examples
CWE Content Team	MITRE	2026-10-28 +00:00	updated Common_Consequences, Description

CWE-940 상세 정보

CWE-940