CVE-2022-38695
📋 TL;DR
This vulnerability in BootRom allows local attackers to escalate privileges without needing additional execution permissions. It affects devices with Unisoc chipsets, potentially impacting smartphones, IoT devices, and embedded systems using these components.
💻 Affected Systems
- Devices with Unisoc chipsets (Tiger T310, T610, T618, T740, T760, T770, etc.)
⚠️ 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 attacker to gain root/system-level access, install persistent malware, bypass security controls, and access all user data.
Likely Case
Local privilege escalation enabling installation of malicious apps, data theft, or persistence mechanisms on compromised devices.
If Mitigated
Limited impact if devices are properly segmented, have secure boot enabled, and run updated firmware with patches applied.
🎯 Exploit Status
Requires physical access or ability to run code on device. Exploit details published in NCC Group research.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Vendor-specific firmware updates
Vendor Advisory: https://www.nccgroup.com/research-blog/there-s-another-hole-in-your-soc-unisoc-rom-vulnerabilities/
Restart Required: Yes
Instructions:
1. Contact device manufacturer for firmware updates. 2. Apply manufacturer-provided firmware patches. 3. Verify bootloader/ROM version after update. 4. Reboot device to apply changes.
🔧 Temporary Workarounds
Secure Boot Enforcement
allEnable and enforce secure boot to prevent unauthorized bootloader modifications
Physical Security Controls
allRestrict physical access to vulnerable devices
🧯 If You Can't Patch
- Isolate vulnerable devices on separate network segments
- Implement strict physical access controls and monitoring
🔍 How to Verify
Check if Vulnerable:
Check device specifications for Unisoc chipset and consult manufacturer for vulnerability statusCheck Version:
Device-specific commands vary by manufacturer (check bootloader info or device settings)Verify Fix Applied:
Verify firmware version against manufacturer's patched version list📡 Detection & Monitoring
Log Indicators:
- Bootloader modification attempts
- Unexpected boot sequence changes
- Secure boot failures
Network Indicators:
- Unusual device behavior post-boot
- Unexpected network connections from device
SIEM Query:
Device boot logs showing bootloader anomalies OR secure boot violations