CWE-589 Call to Non-ubiquitous API

The product uses an API function that does not exist on all versions of the target platform.

• Other: Quality Degradation, Reduce Maintainability — Some functions that offer security features supported by the OS are not available on all versions of the OS in common use. Likewise, functions are often deprecated or made obsolete for security reasons and should not be used. This could cause portability problems or inconsistencies that allow denial of service or other consequences.

• [Implementation] Always test your code on any platform on which it is targeted to run on. • [Testing] Test your code on the newest and oldest platform on which it is targeted to run on. • [Testing] Develop a system to test for API functions that are not portable.

• Automated Static Analysis: Automated static analysis, commonly referred to as Static Application Security Testing (SAST), can find some instances of this weakness by analyzing source code (or binary/compiled code) without having to execute it. Typically, this is done by building a model of data flow and control flow, then searching for potentially-vulnerable patterns that connect "sources" (origins of input) with "sinks" (destinations where the data interacts with external components, a lower layer such as the OS, etc.)