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CWE-422

Unprotected Windows Messaging Channel ('Shatter')

Weakness Description

The product does not properly verify the source of a message in the Windows Messaging System while running at elevated privileges, creating an alternate channel through which an attacker can directly send a message to the product.

Potential Mitigations

Architecture and Design

Always verify and authenticate the source of the message.

Common Consequences

Access Control
Gain Privileges or Assume IdentityBypass Protection Mechanism

Related Weaknesses