CWE-670: Always-Incorrect Control Flow Implementation
Learn about CWE-670 (Always-Incorrect Control Flow Implementation), its security impact, exploitation methods, and prevention guidelines.
What is Always-Incorrect Control Flow Implementation?
• Overview: Always-Incorrect Control Flow Implementation (CWE-670) refers to a flaw in the code where the control flow path does not match the intended algorithm, resulting in consistently incorrect behavior whenever this path is executed.
• Exploitation Methods:
- Attackers can exploit this vulnerability by identifying logic errors that can be triggered or manipulated to cause unintended operations.
- Common attack patterns include exploiting logic flaws to bypass security checks or input validation, leading to unauthorized actions or data exposure.
• Security Impact:
- Direct consequences of successful exploitation include incorrect program operation, data corruption, unauthorized access, and potential system compromise.
- Potential cascading effects can involve further exploitation through lateral movement within a system or network, as well as increased vulnerability exposure.
- Business impact may include loss of data integrity, compromised system reliability, damage to reputation, and financial losses due to service disruptions or data breaches.
• Prevention Guidelines:
- Specific code-level fixes involve ensuring that control flow paths are thoroughly tested and reviewed for correctness, particularly in logic-heavy sections of code.
- Security best practices include implementing comprehensive code reviews, static analysis tools, and unit testing to detect and address logic errors early in the development process.
- Recommended tools and frameworks for preventing this vulnerability include using static code analysis tools like SonarQube, automated testing frameworks, and adopting secure coding standards that emphasize clear and correct control flow implementation.
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Technical Details
Likelihood of Exploit: Not specified
Affected Languages: Not specified
Affected Technologies: Not specified