CWE

Only Filtering Special Elements at an Absolute Position

ID: 797		Date: (C)2012-05-14   (M)2022-10-10
Type: weakness		Status: INCOMPLETE
Abstraction Type: Variant

Description

The software receives data from an upstream component, but only accounts for special elements at an absolute position (e.g. "byte number 10"), thereby missing remaining special elements that may exist before sending it to a downstream component.

Applicable Platforms
None

Common Consequences

Scope	Technical Impact	Notes
Integrity	Unexpected state

Detection Methods
None

Potential Mitigations
None

Relationships

Related CWE	Type	View	Chain
CWE-797 ChildOf CWE-795	Weakness	CWE-1000

Demonstrative Examples   (Details)

1. The following code takes untrusted input and uses a substring function to filter a 3-character "../" element located at the 0-index position of the input string. It then appends this result to the /home/user/ directory and attempts to read the file in the final resulting path. (Demonstrative Example Id DX-4)

White Box Definitions
None

Black Box Definitions
None

Taxynomy Mappings
None

References:
None