CWE-1223 Detail

A write-once register in hardware design is programmable by an untrusted software component earlier than the trusted software component, resulting in a race condition issue.

Modes Of Introduction

Architecture and Design : This weakness can appear in designs that use register write-once attributes with two or more software/firmware modules with varying levels of trust executing in parallel.

Piattaforme applicabili

Linguaggio

Name: Verilog (Undetermined)
Name: VHDL (Undetermined)

Tecnologie

Class: System on Chip (Undetermined)

Conseguenze comuni

Potential Mitigations

Phases : Architecture and Design
During hardware design, all register write-once or sticky fields must be evaluated for proper configuration.

Detection Methods

Automated Analysis

The testing phase should use automated tools to test that values are not reprogrammable and that write-once fields lock on writing zeros.

Note sulla mappatura delle vulnerabilità

Giustificazione : This CWE entry is at the Base level of abstraction, which is a preferred level of abstraction for mapping to the root causes of vulnerabilities.
Commento : Carefully read both the name and description to ensure that this mapping is an appropriate fit. Do not try to 'force' a mapping to a lower-level Base/Variant simply to comply with this preferred level of abstraction.

Pattern di attacco correlati

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