CWE-1231
Improper Prevention of Lock Bit Modification
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.
CVE-2024-36354 (GCVE-0-2024-36354)
Vulnerability from cvelistv5
Published
2025-09-06 18:06
Modified
2025-09-23 21:26
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-1231 - - Improper Prevention of Lock Bit Modification
Summary
Improper input validation for DIMM serial presence detect (SPD) metadata could allow an attacker with physical access, ring0 access on a system with a non-compliant DIMM, or control over the Root of Trust for BIOS update, to bypass SMM isolation potentially resulting in arbitrary code execution at the SMM level.
References
Impacted products
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Mitigation
Phases: Architecture and Design, Implementation, Testing
Description:
- 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.
CAPEC-680: Exploitation of Improperly Controlled Registers
An adversary exploits missing or incorrectly configured access control within registers to read/write data that is not meant to be obtained or modified by a user.