CVE-2023-33116

7.5 HIGH

📋 TL;DR

This vulnerability in Qualcomm's WIN WLAN driver allows a denial-of-service (DoS) attack when parsing specific wireless network management frames. Attackers can send specially crafted packets to crash affected systems, affecting devices using Qualcomm wireless chipsets with vulnerable driver versions.

💻 Affected Systems

Products:
  • Qualcomm WIN WLAN driver
Versions: Specific versions listed in Qualcomm January 2024 bulletin
Operating Systems: Windows systems with Qualcomm wireless adapters
Default Config Vulnerable: ⚠️ Yes
Notes: Affects systems using Qualcomm wireless chipsets with vulnerable driver versions. Requires wireless connectivity to be enabled.

📦 What is this software?

⚠️ Risk & Real-World Impact

🔴

Worst Case

Complete system crash requiring reboot, disrupting wireless connectivity and potentially affecting device availability in critical environments.

🟠

Likely Case

Temporary wireless connectivity loss on affected devices until driver/service restarts, causing service disruption.

🟢

If Mitigated

Minimal impact with proper network segmentation and wireless security controls limiting attack surface.

🌐 Internet-Facing: MEDIUM - Requires wireless proximity or network access, but can be exploited remotely over Wi-Fi.
🏢 Internal Only: MEDIUM - Internal attackers or compromised devices on same wireless network could exploit this vulnerability.

🎯 Exploit Status

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

Exploitation requires sending specially crafted wireless management frames to target device.

🛠️ Fix & Mitigation

✅ Official Fix

Patch Version: Patched versions specified in Qualcomm January 2024 security bulletin

Vendor Advisory: https://www.qualcomm.com/company/product-security/bulletins/january-2024-bulletin

Restart Required: Yes

Instructions:

1. Check Qualcomm January 2024 bulletin for affected chipset/driver versions. 2. Obtain updated driver from device manufacturer or Qualcomm. 3. Install updated driver. 4. Reboot system.

🔧 Temporary Workarounds

Disable vulnerable wireless features

windows

Disable MSCS (Multi-Stream Control Service) feature if not required

Network segmentation

all

Segment wireless networks to limit attack surface

🧯 If You Can't Patch

  • Implement strict wireless network access controls and monitoring
  • Deploy wireless intrusion prevention systems to detect malicious management frames

🔍 How to Verify

Check if Vulnerable:

Check Qualcomm wireless driver version against affected versions in January 2024 bulletin

Check Version:

wmic path win32_pnpsigneddriver get devicename, driverversion | findstr /i qualcomm

Verify Fix Applied:

Verify driver version has been updated to patched version specified in bulletin

📡 Detection & Monitoring

Log Indicators:

  • System crashes or driver restarts
  • Wireless connectivity disruptions
  • Event logs showing driver failures

Network Indicators:

  • Unusual wireless management frame patterns
  • MSCS-related packet anomalies

SIEM Query:

EventID=1001 OR EventID=6008 OR wireless driver crash events

🔗 References

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