CVE-2024-21864

7.8 HIGH

📋 TL;DR

This vulnerability in Intel Arc and Iris Xe Graphics software allows an unauthenticated attacker on the same network to potentially escalate privileges. It affects systems running vulnerable graphics drivers before version 31.0.101.5081. The attacker must have adjacent network access to the target system.

💻 Affected Systems

Products:
  • Intel Arc Graphics
  • Intel Iris Xe Graphics
Versions: All versions before 31.0.101.5081
Operating Systems: Windows, Linux
Default Config Vulnerable: ⚠️ Yes
Notes: Affects systems with vulnerable Intel graphics drivers installed. The vulnerability is in the graphics software/driver, not the GPU hardware.

⚠️ 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.

Recommended Actions:
  1. Review the CVE details at NVD
  2. Check vendor security advisories for your specific version
  3. Test if the vulnerability is exploitable in your environment
  4. Consider updating to the latest version as a precaution

⚠️ Risk & Real-World Impact

🔴

Worst Case

An attacker gains SYSTEM/root privileges on the target machine, enabling complete system compromise, data theft, and persistent access.

🟠

Likely Case

Local privilege escalation allowing an attacker to execute code with higher privileges than their current user account.

🟢

If Mitigated

With proper network segmentation and access controls, the attack surface is limited to authorized users on the same network segment.

🌐 Internet-Facing: LOW - Requires adjacent network access, not directly exploitable from the internet.
🏢 Internal Only: HIGH - Can be exploited by any unauthenticated user on the same network segment.

🎯 Exploit Status

Public PoC: ✅ No
Weaponized: UNKNOWN
Unauthenticated Exploit: ⚠️ Yes
Complexity: MEDIUM

Exploitation requires adjacent network access and knowledge of vulnerable systems. No public exploit code has been released.

🛠️ Fix & Mitigation

✅ Official Fix

Patch Version: 31.0.101.5081 or later

Vendor Advisory: https://www.intel.com/content/www/us/en/security-center/advisory/intel-sa-01053.html

Restart Required: Yes

Instructions:

1. Download the latest Intel Graphics Driver from Intel's website or Windows Update. 2. Run the installer. 3. Restart the system when prompted.

🔧 Temporary Workarounds

Network Segmentation

all

Isolate vulnerable systems from untrusted networks and limit access to trusted users only.

Disable Unnecessary Network Services

all

Reduce attack surface by disabling unused network services on affected systems.

🧯 If You Can't Patch

  • Implement strict network access controls to limit adjacent network access to trusted devices only.
  • Monitor for suspicious network activity and privilege escalation attempts on affected systems.

🔍 How to Verify

Check if Vulnerable:

Check Intel Graphics Driver version in Device Manager (Windows) or via 'intel_gpu_top' command (Linux).

Check Version:

Windows: dxdiag or Device Manager. Linux: modinfo i915 | grep version or intel_gpu_top -v

Verify Fix Applied:

Confirm driver version is 31.0.101.5081 or higher after update.

📡 Detection & Monitoring

Log Indicators:

  • Unexpected privilege escalation events
  • Suspicious driver/service activity
  • Failed authentication attempts from adjacent network

Network Indicators:

  • Unusual network traffic to/from graphics driver services
  • Connection attempts from adjacent network to graphics-related ports

SIEM Query:

EventID=4688 AND ProcessName contains 'Intel' AND NewIntegrityLevel='System' OR EventID=4672

🔗 References

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