Category: 7PK - Input Validation and Representation
Draft
Summary
This category represents one of the phyla in the Seven Pernicious Kingdoms vulnerability classification. It includes weaknesses that exist when an application does not properly validate or represent input. According to the authors of the Seven Pernicious Kingdoms, "Input validation and representation problems are caused by metacharacters, alternate encodings and numeric representations. Security problems result from trusting input."
Membership
| ID | Name | Description |
|---|---|---|
| CWE-20 | Improper Input Validation | The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly. |
| CWE-77 | Improper Neutralization of Special Elements used in a Command ('Command Injection') | The product constructs all or part of a command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended command when it is sent to a downstream component. |
| CWE-79 | Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') | The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users. |
| CWE-89 | Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection') | The product constructs all or part of an SQL command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended SQL command when it is sent to a downstream component. Without sufficient removal or quoting of SQL syntax in user-controllable inputs, the generated SQL query can cause those inputs to be interpreted as SQL instead of ordinary user data. |
| CWE-99 | Improper Control of Resource Identifiers ('Resource Injection') | The product receives input from an upstream component, but it does not restrict or incorrectly restricts the input before it is used as an identifier for a resource that may be outside the intended sphere of control. |
| CWE-700 | Seven Pernicious Kingdoms | This view (graph) organizes weaknesses using a hierarchical structure that is similar to that used by Seven Pernicious Kingdoms. |
Vulnerability Mapping Notes
Usage: Prohibited
Reasons: Category
Rationale:
This entry is a Category. Using categories for mapping has been discouraged since 2019. Categories are informal organizational groupings of weaknesses that can help CWE users with data aggregation, navigation, and browsing. However, they are not weaknesses in themselves.
Comment:
See member weaknesses of this category.