Tag Archives: Struts: Duplicate Validation Forms

CWE-102 – Struts: Duplicate Validation Forms

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Description

The application uses multiple validation forms with the same name, which might cause the Struts Validator to validate a form that the programmer does not expect.

If two validation forms have the same name, the Struts Validator arbitrarily chooses one of the forms to use for input validation and discards the other. This decision might not correspond to the programmer’s expectations, possibly leading to resultant weaknesses. Moreover, it indicates that the validation logic is not up-to-date, and can indicate that other, more subtle validation errors are present.

Modes of Introduction:

– Implementation

 

 

Related Weaknesses

CWE-694
CWE-1173
CWE-20

 

Consequences

Integrity: Unexpected State

 

Potential Mitigations

Phase: Implementation

Description: 

The DTD or schema validation will not catch the duplicate occurrence of the same form name. To find the issue in the implementation, manual checks or automated static analysis could be applied to the xml configuration files.

CVE References