CWE-1063: Creation of Class Instance within a Static Code Block
A static code block creates an instance of a class.
How it's found
Creation of Class Instance within a Static Code Block 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.
This pattern identifies situations where a storable data element or member data element is initialized with a value in a block of code which is declared as static.
Consequences
- Reduce Performance: This issue can make the product perform more slowly by performing initialization before it is needed. If the relevant code is reachable by an attacker, then this performance problem might introduce a vulnerability.
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-1063?
A static code block creates an instance of a class.
How do you find Creation of Class Instance within a Static Code Block?
Creation of Class Instance within a Static Code Block 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-1063?
Reduce Performance: This issue can make the product perform more slowly by performing initialization before it is needed. If the relevant code is reachable by an attacker, then this performance problem might introduce a vulnerability.
Does TurboPentest test for Creation of Class Instance within a Static Code Block?
This weakness is not covered by the automated black-box pentest. IntegSec pentesters cover it in a manual engagement.
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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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