CWE-1231

Improper Prevention of Lock Bit Modification

Medium

Description

The product uses a trusted lock bit for restricting access to registers, address regions, or other resources, but the product does not prevent the value of the lock bit from being modified after it has been set.

Potential Impact

How to Fix

Architecture and Design

Security lock bit protections must be reviewed for design inconsistency and common weaknesses. Security lock programming flow and lock properties must be tested in pre-silicon and post-silicon testing.

Detection Methods

Related Weaknesses

References

View on MITRE CWE Database →

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