CWEweakness

CWE-1056 Invokable Control Element with Variadic Parameters

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Abstraction
Base
Structure
Simple
Status
Incomplete
Languages
Not Language-Specific
CWE version
5.0

Description

A named-callable or method control element has a signature that supports a variable (variadic) number of parameters or arguments.

Common consequences

• Other: Reduce Reliability — This issue can prevent the product from running reliably. If the relevant code is reachable by an attacker, then this reliability problem might introduce a vulnerability. With variadic arguments, it can be difficult or inefficient for manual analysis to be certain of which function/method is being invoked.

Detection methods

• Automated Static Analysis: Automated static analysis, commonly referred to as Static Application Security Testing (SAST), can find some instances of this weakness by analyzing source code (or binary/compiled code) without having to execute it. Typically, this is done by building a model of data flow and control flow, then searching for potentially-vulnerable patterns that connect "sources" (origins of input) with "sinks" (destinations where the data interacts with external components, a lower layer such as the OS, etc.)

Related

Child of · CWE (1)

  • CWE-1120 Excessive Code Complexity weakness

Referenced by CVE · weakness (1)

  • CVE-2020-13927 The previous default setting for Airflow's Experimental API was to allow all API requests without authentication, but this poses security… vulnerability