Struts: Duplicate Validation Forms

Opis

The product 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.

Skutki

• Integrity

  Unexpected State

Zapobieganie

• Implementation

  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.

Słabość nadrzędna

• CWE-694 Use of Multiple Resources with Duplicate Identifier
• CWE-1173 Improper Use of Validation Framework
• CWE-20 Improper Input Validation

Kiedy powstaje

• Implementation

Dotyczy

Java

Źródła

1. Seven Pernicious Kingdoms: A Taxonomy of Software Security Errors — Katrina Tsipenyuk, Brian Chess, Gary McGraw, NIST, 2005