CVE-2022-25333
📋 TL;DR
This vulnerability allows attackers to bypass the secure boot process on Texas Instruments OMAP L138 secure variant chips by reusing valid signed module headers with malicious payloads. This enables arbitrary code execution in the trusted execution environment (TEE), completely breaking the chip's security architecture. Only devices using affected OMAP L138 secure variants are impacted.
💻 Affected Systems
- Texas Instruments OMAP L138 (secure variants)
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Complete compromise of the secure execution environment allowing attackers to run arbitrary code with highest privileges, potentially enabling persistent backdoors, data theft, and device control.
Likely Case
Attackers with physical or privileged access can bypass secure boot to install malicious firmware, compromising device integrity and confidentiality.
If Mitigated
With proper access controls and monitoring, exploitation requires physical or privileged access, limiting widespread attacks.
🎯 Exploit Status
Exploitation requires combining with CVE-2022-25332 to obtain CEK. Requires physical or privileged access to device.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Not available
Vendor Advisory: Not available
Restart Required: No
Instructions:
Contact Texas Instruments for security guidance. No public patch available at this time.
🔧 Temporary Workarounds
Physical Security Controls
allImplement strict physical access controls to prevent unauthorized device access
Privilege Access Management
allRestrict administrative access to devices using affected chips
🧯 If You Can't Patch
- Isolate affected devices in secure network segments
- Implement device integrity monitoring and anomaly detection
🔍 How to Verify
Check if Vulnerable:
Check device specifications for Texas Instruments OMAP L138 secure variant chipsCheck Version:
Check device hardware specifications and firmware documentationVerify Fix Applied:
No verification method available as no patch exists📡 Detection & Monitoring
Log Indicators:
- Unexpected secure boot failures
- TEE module loading anomalies
Network Indicators:
- Unusual device communication patterns
SIEM Query:
Device logs showing secure boot process anomalies or TEE access violations