CWE-229: Improper Handling of Values

What is Improper Handling of Values?

• Overview: Improper Handling of Values (CWE-229) occurs when software does not correctly manage situations where input parameters, fields, or arguments do not provide the expected number of values or when those values are undefined. This can lead to unexpected behavior or vulnerabilities.

• Exploitation Methods:

• Attackers can exploit this vulnerability by providing inputs with missing, extra, or undefined values to disrupt application logic.
• Common attack patterns include sending malformed data or deliberately leaving out required parameters to cause incorrect application behavior.

• Security Impact:

• Direct consequences include application crashes, unexpected results, or incorrect data processing.
• Potential cascading effects may involve data corruption, security bypass, or denial of service.
• Business impact could include loss of customer trust, financial loss, or compliance issues.

• Prevention Guidelines:

• Specific code-level fixes include implementing rigorous input validation to check for the correct number of values and handling undefined values gracefully.
• Security best practices involve employing defensive programming techniques, such as using default values and ensuring comprehensive error handling.
• Recommended tools and frameworks include static analysis tools to detect improper handling of values and using frameworks that provide built-in input validation mechanisms.

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Technical Details

Likelihood of Exploit: Not specified

Affected Languages: Not specified

Affected Technologies: Not specified