CWE-1095: Loop Condition Value Update within the Loop
Learn about CWE-1095 (Loop Condition Value Update within the Loop), its security impact, exploitation methods, and prevention guidelines.
What is Loop Condition Value Update within the Loop?
• Overview: Loop Condition Value Update within the Loop (CWE-1095) occurs when a loop's control condition is based on a variable that is modified within the loop body, which can lead to unexpected behavior, making the code harder to understand and maintain.
• Exploitation Methods:
- Attackers can exploit this vulnerability by manipulating the loop's control variable to create infinite loops, causing denial of service.
- Common attack patterns include inserting malicious code that alters the control variable to bypass security checks or execute unauthorized actions.
• Security Impact:
- Direct consequences include infinite loops or premature termination of loops, potentially leading to application crashes or hangs.
- Potential cascading effects involve making debugging and vulnerability detection more challenging, increasing the risk of additional security flaws.
- Business impact includes increased maintenance costs and potential downtime, harming user trust and satisfaction.
• Prevention Guidelines:
- Specific code-level fixes include initializing and updating loop control variables outside the loop body.
- Security best practices involve careful code review and testing to ensure loop conditions are predictable and stable.
- Recommended tools and frameworks are static analysis tools that can detect and flag complex loop conditions and control flow anomalies.
Technical Details
Likelihood of Exploit: Not specified
Affected Languages: Not specified
Affected Technologies: Not specified