CWE-233: Improper Handling of Parameters

What is Improper Handling of Parameters?

• Overview: Improper Handling of Parameters occurs when a software application does not correctly manage situations where the expected number of input parameters, fields, or arguments is not provided or when those parameters are undefined. This can lead to unexpected behavior and vulnerabilities.

• Exploitation Methods:

• Attackers can exploit this vulnerability by providing fewer or more parameters than required, or by leaving parameters undefined to manipulate the application's behavior.
• Common attack patterns include parameter injection, denial of service through resource exhaustion, and bypassing authentication or authorization mechanisms.

• Security Impact:

• Direct consequences of successful exploitation can include unauthorized access, data corruption, or application crashes.
• Potential cascading effects might involve data leaks, privilege escalation, or compromised system integrity.
• Business impact can be significant, leading to data breaches, loss of customer trust, and potential legal and financial repercussions.

• Prevention Guidelines:

• Specific code-level fixes include implementing strict input validation to ensure that the correct number and type of parameters are provided.
• Security best practices involve using defined defaults for optional parameters and ensuring robust error handling to manage undefined parameters.
• Recommended tools and frameworks include static analysis tools to detect parameter handling issues and using frameworks that provide built-in input validation and sanitization features.

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Technical Details

Likelihood of Exploit: Not specified

Affected Languages: Not specified

Affected Technologies: Not specified