CWE-622

Improper Validation of Function Hook Arguments
AI Translation Available

The product adds hooks to user-accessible API functions, but it does not properly validate the arguments. This could lead to resultant vulnerabilities.

Status
draft
Abstraction
variant

Such hooks can be used in defensive software that runs with privileges, such as anti-virus or firewall, which hooks kernel calls. When the arguments are not validated, they could be used to bypass the protection scheme or attack the product itself.

Common Consequences

integrity
Impacts
unexpected state

Potential Mitigations

Phases:
architecture and design
Descriptions:
• Drop privileges before invoking such functions, if possible.
• Ensure that all arguments are verified, as defined by the API you are protecting.