Weakness · Medium
CWE-622: Improper Validation of Function Hook Arguments
What it is
The product adds hooks to user-accessible API functions, but it does not properly validate the arguments. This could lead to resultant vulnerabilities.
- Severity (our rating)
- Medium
- Likelihood of exploit
- Not rated by MITRE
- Introduced during
- Implementation
- Exploited in the wild
- No CVE in CISA's catalog
In more detail
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.
What an attacker can do
- Unexpected State (Integrity)
How to prevent it
Architecture and Design
- Ensure that all arguments are verified, as defined by the API you are protecting.
- Drop privileges before invoking such functions, if possible.
H2 Security
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Start freeSource: MITRE Common Weakness Enumeration, CWE version 4.19.1. CWE is a trademark of The MITRE Corporation.