CWE-1119: Excessive Use of Unconditional Branching

What is Excessive Use of Unconditional Branching?

• Overview: Excessive Use of Unconditional Branching (CWE-1119) refers to the overuse of non-conditional control flow statements like "goto" in code, which can make the codebase difficult to read, understand, and maintain. This complexity can lead to errors and vulnerabilities being overlooked.

• Exploitation Methods:

• Attackers can exploit this vulnerability by inserting malicious code into convoluted control flows where they are less likely to be detected.
• Common attack patterns include hiding malicious logic in hard-to-trace code paths or exploiting logical errors introduced by complex control flows.

• Security Impact:

• Direct consequences include the introduction of logical errors and potential security flaws that are difficult to detect and fix.
• Potential cascading effects include increased likelihood of future vulnerabilities due to the difficulty in understanding and maintaining the code.
• Business impact can include increased maintenance costs, longer time to resolve security issues, and potentially higher risk of data breaches.

• Prevention Guidelines:

• Specific code-level fixes include refactoring code to minimize or eliminate the use of "goto" and similar unconditional branching constructs.
• Security best practices involve using structured programming techniques and ensuring code is modular and easy to follow.
• Recommended tools and frameworks include static analysis tools that can detect excessive use of unconditional branching and provide suggestions for refactoring.

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Technical Details

Likelihood of Exploit: Not specified

Affected Languages: Not specified

Affected Technologies: Not specified