COMMON WEAKNESS ENUMERATIONIncomplete

CWE-703

Improper Check or Handling of Exceptional Conditions

The product does not properly anticipate or handle exceptional conditions that rarely occur during normal operation of the product.

Abstraction

Pillar

Structure

Simple

Likelihood of Exploit

Medium

Understand the problem

What is the problem?

The product does not properly anticipate or handle exceptional conditions that rarely occur during normal operation of the product.

Root cause

How and when does the problem arise?

Lifecycle phase

Architecture and Design

Lifecycle phase

Implementation

REALIZATION: This weakness is caused during implementation of an architectural security tactic.

Lifecycle phase

Operation

Risk

What does successful exploitation lead to?

Read Application DataDoS: Crash, Exit, or RestartUnexpected State

Affected security scopes: Confidentiality, Availability, Integrity

Defence

How is it prevented and fixed?

  • Follow secure coding guidelines for input handling and boundary checking.
  • Enforce strict security reviews and automated static analysis (SAST) checks.

Verification

How is it detected?

Dynamic Analysis with Manual Results Interpretation

High
According to SOAR [REF-1479], the following detection techniques may be useful: ``` Highly cost effective: ``` Fault Injection - source code Fault Injection - binary ``` Cost effective for partial coverage: ``` Forced Path Execution

Manual Static Analysis - Source Code

High
According to SOAR [REF-1479], the following detection techniques may be useful: ``` Highly cost effective: ``` Manual Source Code Review (not inspections) ``` Cost effective for partial coverage: ``` Focused Manual Spotcheck - Focused manual analysis of source

Automated Static Analysis - Source Code

SOAR Partial
According to SOAR [REF-1479], the following detection techniques may be useful: ``` Cost effective for partial coverage: ``` Source code Weakness Analyzer Context-configured Source Code Weakness Analyzer

Architecture or Design Review

High
According to SOAR [REF-1479], the following detection techniques may be useful: ``` Highly cost effective: ``` Inspection (IEEE 1028 standard) (can apply to requirements, design, source code, etc.) Formal Methods / Correct-By-Construction

MITRE diagram

Weakness relationships and flow

CWE-703 MITRE diagramı
CWE-703: Common Weakness Enumeration Entry CWE-703 · DayBreach Sözlük · DayBreach