CWE-430: Deployment of Wrong Handler
The wrong "handler" is assigned to process an object.
How it's found
Deployment of Wrong Handler 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.
An example of deploying the wrong handler would be calling a servlet to reveal source code of a .JSP file, or automatically "determining" type of the object even if it is contradictory to an explicitly specified type.
Consequences
- Varies by Context, Unexpected State
Mitigations
- Architecture and Design: Perform a type check before interpreting an object.
- Architecture and Design: Reject any inconsistent types, such as a file with a .GIF extension that appears to consist of PHP code.
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-430?
The wrong "handler" is assigned to process an object.
How do you find Deployment of Wrong Handler?
Deployment of Wrong Handler 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-430?
Varies by Context, Unexpected State
Does TurboPentest test for Deployment of Wrong Handler?
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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