CVE-2024-20100

9.8 CRITICAL

📋 TL;DR

This critical vulnerability in MediaTek Wi-Fi drivers allows remote attackers to execute arbitrary code without authentication or user interaction. It affects devices using vulnerable MediaTek Wi-Fi chipsets. Successful exploitation gives attackers full control over affected systems.

💻 Affected Systems

Products:
  • Devices with MediaTek Wi-Fi chipsets
Versions: Specific driver versions not publicly detailed in advisory
Operating Systems: Android, Linux-based systems using MediaTek Wi-Fi drivers
Default Config Vulnerable: ⚠️ Yes
Notes: Affects multiple MediaTek chipset models; exact device list requires checking vendor-specific bulletins.

📦 What is this software?

⚠️ Risk & Real-World Impact

🔴

Worst Case

Complete system compromise leading to data theft, ransomware deployment, or persistent backdoor installation across the network.

🟠

Likely Case

Remote code execution leading to device takeover, credential harvesting, and lateral movement within the network.

🟢

If Mitigated

Limited impact if network segmentation isolates vulnerable devices and strict firewall rules block unnecessary Wi-Fi management traffic.

🌐 Internet-Facing: HIGH - Exploitable remotely without authentication, making internet-exposed devices immediate targets.
🏢 Internal Only: HIGH - Can be exploited from within the network, allowing attackers to pivot from compromised devices.

🎯 Exploit Status

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

No authentication required and no user interaction needed makes exploitation straightforward once weaponized.

🛠️ Fix & Mitigation

✅ Official Fix

Patch Version: Driver patch ID: ALPS08998449

Vendor Advisory: https://corp.mediatek.com/product-security-bulletin/October-2024

Restart Required: Yes

Instructions:

1. Contact device manufacturer for firmware updates
2. Apply MediaTek-provided driver patches
3. Reboot affected devices after patching

🔧 Temporary Workarounds

Network Segmentation

all

Isolate devices with MediaTek Wi-Fi chipsets from critical network segments

Wi-Fi Interface Restrictions

all

Disable Wi-Fi on affected devices when not needed or use wired connections

🧯 If You Can't Patch

  • Implement strict network access controls to limit Wi-Fi traffic to trusted sources only
  • Deploy intrusion detection systems to monitor for exploitation attempts on Wi-Fi interfaces

🔍 How to Verify

Check if Vulnerable:

Check device specifications for MediaTek Wi-Fi chipsets and consult manufacturer security bulletins

Check Version:

Device-specific commands vary; consult manufacturer documentation for driver version checking

Verify Fix Applied:

Verify driver version includes patch ID ALPS08998449 or check with manufacturer for updated firmware

📡 Detection & Monitoring

Log Indicators:

  • Unusual Wi-Fi driver crashes
  • Kernel panic logs related to wlan driver
  • Unexpected privilege escalation attempts

Network Indicators:

  • Malformed Wi-Fi management frames targeting MediaTek devices
  • Unexpected network traffic from Wi-Fi interfaces

SIEM Query:

Search for 'wlan driver crash' OR 'MediaTek Wi-Fi' AND (kernel panic OR segmentation fault)

🔗 References

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