CWE-940—Improper Verification of Source of a Communication Channel

Weakness Name

Improper Verification of Source of a Communication Channel

Description

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.

Common Consequences

Scope:

Access Control, Other

Impact:

Gain Privileges or Assume Identity, Varies by Context, Bypass Protection Mechanism

Notes:

An attacker can access any functionality that is inadvertently accessible to the source.

Related Weaknesses

• CWE-346Origin Validation Error
• CWE-923Improper Restriction of Communication Channel to Intended Endpoints