CVE-2023-48267
📋 TL;DR
This vulnerability in Intel System Security Report and System Resources Defense firmware allows privileged users to bypass buffer restrictions, potentially enabling local privilege escalation. It affects systems with vulnerable Intel firmware components, primarily impacting enterprise servers and workstations with specific Intel hardware.
💻 Affected Systems
- Intel System Security Report firmware
- Intel System Resources Defense firmware
⚠️ 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
A malicious privileged user could gain full system control, compromise the firmware layer, and establish persistent access across reboots.
Likely Case
Privileged attackers could elevate their access to higher system privileges, potentially accessing sensitive data or installing malware.
If Mitigated
With proper access controls and monitoring, impact is limited to isolated systems without lateral movement capabilities.
🎯 Exploit Status
Requires local privileged access; buffer manipulation needed for exploitation
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Firmware updates provided by OEMs (Dell, HP, Lenovo, etc.)
Vendor Advisory: https://intel.com/content/www/us/en/security-center/advisory/intel-sa-01203.html
Restart Required: Yes
Instructions:
1. Check OEM website for firmware updates 2. Download appropriate firmware 3. Apply update following OEM instructions 4. Reboot system
🔧 Temporary Workarounds
Restrict local privileged access
allLimit number of users with local administrative privileges
Implement privilege separation
allUse role-based access control to minimize privileged account usage
🧯 If You Can't Patch
- Implement strict access controls and monitoring for privileged accounts
- Isolate affected systems from critical network segments
🔍 How to Verify
Check if Vulnerable:
Check system firmware version against OEM security advisories (Dell, HP, Lenovo, etc.)Check Version:
systeminfo | findstr /B /C:"BIOS Version" (Windows) or dmidecode -t bios (Linux)Verify Fix Applied:
Verify firmware version after update matches OEM-recommended secure version📡 Detection & Monitoring
Log Indicators:
- Unusual firmware access attempts
- Privilege escalation events
- Suspicious local administrative activity
Network Indicators:
- None - local access only vulnerability
SIEM Query:
EventID=4688 AND ProcessName LIKE '%firmware%' OR EventID=4672 AND PrivilegeList LIKE '%SeDebugPrivilege%'