CVE-2024-33048

7.5 HIGH

📋 TL;DR

This vulnerability allows an attacker to cause a denial-of-service (DoS) condition by sending specially crafted beacon or probe response frames to affected Wi-Fi devices. The issue occurs during parsing of TID-to-link mapping elements, causing temporary service disruption. This affects devices using Qualcomm Wi-Fi chipsets with vulnerable firmware.

💻 Affected Systems

Products:
  • Qualcomm Wi-Fi chipsets
Versions: Specific firmware versions not publicly detailed in advisory
Operating Systems: Any OS using affected Qualcomm Wi-Fi hardware
Default Config Vulnerable: ⚠️ Yes
Notes: Affects devices with vulnerable Qualcomm Wi-Fi firmware; exact chipset models not specified in public advisory.

📦 What is this software?

⚠️ Risk & Real-World Impact

🔴

Worst Case

Persistent denial of Wi-Fi service requiring device reboot, potentially affecting critical infrastructure or medical devices relying on wireless connectivity.

🟠

Likely Case

Temporary Wi-Fi disconnection or performance degradation for affected devices in range of malicious frames.

🟢

If Mitigated

Brief service interruption with automatic recovery, minimal impact on network operations.

🌐 Internet-Facing: MEDIUM - Requires proximity to target device but can be exploited remotely within wireless range.
🏢 Internal Only: MEDIUM - Same proximity requirement applies internally; physical access not needed but attacker must be within wireless range.

🎯 Exploit Status

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

Exploitation requires sending crafted wireless frames; no authentication needed. Complexity is low once attacker has necessary wireless transmission capability.

🛠️ Fix & Mitigation

✅ Official Fix

Patch Version: Refer to Qualcomm September 2024 security bulletin for specific firmware versions

Vendor Advisory: https://docs.qualcomm.com/product/publicresources/securitybulletin/september-2024-bulletin.html

Restart Required: Yes

Instructions:

1. Check device manufacturer for firmware updates. 2. Apply Qualcomm-provided firmware patches. 3. Reboot affected devices. 4. Verify patch installation.

🔧 Temporary Workarounds

Wireless Network Segmentation

all

Isolate critical devices on separate wireless networks or VLANs to limit attack surface

Monitor for Malicious Frames

all

Deploy wireless intrusion detection systems to detect crafted beacon/probe frames

🧯 If You Can't Patch

  • Implement physical security controls to limit wireless access to sensitive areas
  • Use wired connections for critical devices instead of Wi-Fi where possible

🔍 How to Verify

Check if Vulnerable:

Check device firmware version against Qualcomm security bulletin; contact device manufacturer for vulnerability status

Check Version:

Device-specific; typically through manufacturer management interface or command-line tools

Verify Fix Applied:

Verify firmware version has been updated to patched version specified in Qualcomm advisory

📡 Detection & Monitoring

Log Indicators:

  • Unexpected Wi-Fi disconnections
  • Driver crash logs
  • Beacon frame parsing errors

Network Indicators:

  • Unusual beacon/probe response frames
  • Abnormal TID-to-link mapping elements

SIEM Query:

Wireless logs showing repeated disconnection events or driver crashes on multiple devices

🔗 References

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