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CWE-940

通信チャネルの送信元の不適切な検証

Improper Verification of Source of a Communication Channel
脆弱性 作成中
JA

製品は、アクターによって開始された着信リクエストを処理するために通信チャネルを確立しますが、そのリクエストが期待される発信元から来たものであることを適切に検証しません。

攻撃者が信頼できない発信元からの通信チャネルの確立に成功した場合、攻撃者は特権を獲得し、予期せぬ機能にアクセスできる可能性がある。

EN

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.

When an attacker can successfully establish a communication channel from an untrusted origin, the attacker may be able to gain privileges and access unexpected functionality.

Scope: Access Control, Other / Impact: Gain Privileges or Assume Identity; Varies by Context; Bypass Protection Mechanism
Use a mechanism that can validate the identity of the source, such as a certificate, and validate the integrity of data to ensure that it cannot be modified in transit using an Adversary-in-the-Middle (AITM) attack.

When designing functionality of actions in the URL scheme, consider whether the action should be accessible to all mobile applications, or if an allowlist of applications to interface with is appropriate.
MITRE公式ページ — CWE-940