Weakness · High
CWE-1193: Power-On of Untrusted Execution Core Before Enabling Fabric Access Control
What it is
The product enables components that contain untrusted firmware before memory and fabric access controls have been enabled.
- Severity (our rating)
- High
- Likelihood of exploit
- Not rated by MITRE
- Introduced during
- Architecture and Design
- Exploited in the wild
- No CVE in CISA's catalog
In more detail
After initial reset, System-on-Chip (SoC) fabric access controls and other security features need to be programmed by trusted firmware as part of the boot sequence. If untrusted IPs or peripheral microcontrollers are enabled first, then the untrusted component can master transactions on the hardware bus and target memory or other assets to compromise the SoC boot firmware.
What an attacker can do
- Bypass Protection Mechanism (Access Control)
How to prevent it
Architecture and Design
- The boot sequence should enable fabric access controls and memory protections before enabling third-party hardware IPs and peripheral microcontrollers that use untrusted firmware.
H2 Security
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Start freeSource: MITRE Common Weakness Enumeration, CWE version 4.19.1. CWE is a trademark of The MITRE Corporation.