CWE-439: Behavioral Change in New Version or Environment
A's behavior or functionality changes with a new version of A, or a new environment, which is not known (or manageable) by B.
How it's found
Behavioral Change in New Version or Environment is typically found by tracing untrusted input from where it enters the system to the point where it is used without the check or neutralization this weakness describes, combining manual code review with dynamic testing.
Consequences
- Quality Degradation, Varies by Context
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-439?
A's behavior or functionality changes with a new version of A, or a new environment, which is not known (or manageable) by B.
How do you find Behavioral Change in New Version or Environment?
Behavioral Change in New Version or Environment is typically found by tracing untrusted input from where it enters the system to the point where it is used without the check or neutralization this weakness describes, combining manual code review with dynamic testing.
What is the impact of CWE-439?
Quality Degradation, Varies by Context
Does TurboPentest test for Behavioral Change in New Version or Environment?
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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