CWE-684: Incorrect Provision of Specified Functionality
The code does not function according to its published specifications, potentially leading to incorrect usage.
How it's found
Incorrect Provision of Specified Functionality describes a general pattern rather than a single fixed bug. Testers use a mix of static analysis and manual code review to find where a target's code matches this pattern, then confirm exploitability by hand.
When providing functionality to an external party, it is important that the product behaves in accordance with the details specified. When requirements of nuances are not documented, the functionality may produce unintended behaviors for the caller, possibly leading to an exploitable state.
Consequences
- Quality Degradation
Mitigations
- Implementation: Ensure that your code strictly conforms to specifications.
Where this fits in a TurboPentest engagement
This weakness is not covered by the automated black-box pentest. IntegSec pentesters cover it in a manual engagement.
Frequently asked questions
What is CWE-684?
The code does not function according to its published specifications, potentially leading to incorrect usage.
How do you find Incorrect Provision of Specified Functionality?
Incorrect Provision of Specified Functionality describes a general pattern rather than a single fixed bug. Testers use a mix of static analysis and manual code review to find where a target's code matches this pattern, then confirm exploitability by hand.
What is the impact of CWE-684?
Quality Degradation
Does TurboPentest test for Incorrect Provision of Specified Functionality?
This weakness is not covered by the automated black-box pentest. IntegSec pentesters cover it in a manual engagement.
Related CWEs
Written and reviewed by
Michel Chamberland - Founder & CEO, IntegSec
CISSP, OSCP, OSCE, CEH, GIAC, CCSK · 20+ years in offensive security
Michel has spent 20+ years on offensive security teams including IBM X-Force Red and Trustwave SpiderLabs, leading penetration tests, red team engagements, and breach response for Fortune 500 customers. He is the founder of IntegSec and the architect of TurboPentest.
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