451
Nature Type ID Name Page
MemberOf 1410 Comprehensive Categorization: Insufficient Control
Flow Management
1400 2536
Notes
Research Gap
These errors are mostly reported in path traversal vulnerabilities, but the concept applies
whenever validation occurs.
Taxonomy Mappings
Mapped Taxonomy Name Node ID Fit Mapped Node Name
PLOVER Early Validation Errors
Related Attack Patterns
CAPEC-ID Attack Pattern Name
3 Using Leading 'Ghost' Character Sequences to Bypass Input Filters
43 Exploiting Multiple Input Interpretation Layers
71 Using Unicode Encoding to Bypass Validation Logic
References
[REF-62]Mark Dowd, John McDonald and Justin Schuh. "The Art of Software Security
Assessment". 1st Edition. 2006. Addison Wesley.
CWE-180: Incorrect Behavior Order: Validate Before Canonicalize
Weakness ID : 180
Structure : Simple
Abstraction : Variant
Description
The product validates input before it is canonicalized, which prevents the product from detecting
data that becomes invalid after the canonicalization step.
Extended Description
This can be used by an attacker to bypass the validation and launch attacks that expose
weaknesses that would otherwise be prevented, such as injection.
Relationships
The table(s) below shows the weaknesses and high level categories that are related to this
weakness. These relationships are defined as ChildOf, ParentOf, MemberOr and give insight to
similar items that may exist at higher and lower levels of abstraction. In addition, relationships such
as PeerOf and CanAlsoBe are defined to show similar weaknesses that may want to be explored.
Relevant to the view "Research Concepts" (CWE-1000)
Nature Type ID Name Page
ChildOf 179 Incorrect Behavior Order: Early Validation 448
Applicable Platforms
Language : Not Language-Specific (Prevalence = Undetermined)
Common Consequences
Scope Impact Likelihood
Access Control Bypass Protection Mechanism
Potential Mitigations
CWE Version 4.14
CWE-180: Incorrect Behavior Order: Validate Before Canonicalize
CWE-180: Incorrect Behavior Order: Validate Before Canonicalize