CVE-2022-38692
📋 TL;DR
This BootROM vulnerability allows attackers to trigger a memory buffer overflow during RSA key validation without requiring elevated privileges. It affects devices with Unisoc chipsets during the secure boot process. Exploitation could compromise device integrity before the operating system loads.
💻 Affected Systems
- Devices with Unisoc (Spreadtrum) chipsets
⚠️ Manual Verification Required
This CVE does not have specific version information in our database, so automatic vulnerability detection cannot determine if your system is affected.
Why? The CVE database entry doesn't specify which versions are vulnerable (no version ranges provided by the vendor/NVD).
🔒 Custom verification scripts are available for registered users. Sign up free to download automated test scripts.
- Review the CVE details at NVD
- Check vendor security advisories for your specific version
- Test if the vulnerability is exploitable in your environment
- Consider updating to the latest version as a precaution
⚠️ Risk & Real-World Impact
Worst Case
Complete device compromise allowing persistent malware installation, bypassing secure boot protections, and gaining full control over the device.
Likely Case
Boot process manipulation leading to unauthorized code execution, potential for persistent backdoors, and device compromise.
If Mitigated
Limited impact if devices are physically secured and not exposed to malicious actors with physical access or specialized capabilities.
🎯 Exploit Status
Exploitation requires physical access or specialized hardware tools. Public research demonstrates exploitation methodology.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: N/A
Vendor Advisory: https://www.nccgroup.com/research-blog/there-s-another-hole-in-your-soc-unisoc-rom-vulnerabilities/
Restart Required: No
Instructions:
No software patch available. Contact device manufacturer for hardware replacement options or mitigation guidance.
🔧 Temporary Workarounds
Physical Security Controls
allImplement strict physical access controls to prevent unauthorized device access
Supply Chain Verification
allVerify device integrity and source before deployment
🧯 If You Can't Patch
- Decommission affected devices from critical environments
- Implement additional security layers and monitoring for devices that must remain in use
🔍 How to Verify
Check if Vulnerable:
Check device specifications for Unisoc/Spreadtrum chipset usage. Consult manufacturer for specific device vulnerability status.Check Version:
N/A - Hardware-level vulnerabilityVerify Fix Applied:
No software fix available. Only hardware replacement with updated BootROM can resolve.📡 Detection & Monitoring
Log Indicators:
- Unusual boot sequence events
- Secure boot validation failures
Network Indicators:
- N/A - Local exploitation only
SIEM Query:
N/A - Hardware-level attack not typically logged