CWE-105

Extended description

Omitting validation for even a single input field may give attackers the leeway they need to compromise the product. Although J2EE applications are not generally susceptible to memory corruption attacks, if a J2EE application interfaces with native code that does not perform array bounds checking, an attacker may be able to use an input validation mistake in the J2EE application to launch a buffer overflow attack.

Common consequences2

• IntegrityUnexpected State
• IntegrityBypass Protection Mechanism

  If unused fields are not validated, shared business logic in an action may allow attackers to bypass the validation checks that are performed for other uses of the form.

Potential mitigations1

1. Implementation

   Validate all form fields. If a field is unused, it is still important to constrain it so that it is empty or undefined.

Relationships2

• ChildOfCWE-1173
• ChildOfCWE-20