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Weakness (CWE)

CWE-454: External Initialization of Trusted Variables or Data Stores

Base Draft

The product initializes critical internal variables or data stores using inputs that can be modified by untrusted actors.

How to prevent it (2 mitigations)

  1. Implementation

    A product system should be reluctant to trust variables that have been initialized outside of its trust boundary, especially if they are initialized by users. Ensure adequate checking (e.g. input validation) is performed when relying on input from outside a trust boundary.

  2. Architecture and Design

    Avoid any external control of variables. If necessary, restrict the variables that can be modified using an allowlist, and use a different namespace or naming convention if possible.

Source: MITRE CWE-454

All Critical High Medium Low Exploited only Public exploit

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