CVE-2023-33109 : Exploit Details and Defense Strategies

Understanding CVE-2023-33109

This CVE involves a Transient DOS vulnerability in Qualcomm's Snapdragon products due to a NULL Pointer Dereference in WLAN Firmware.

What is CVE-2023-33109?

The vulnerability leads to Transient DOS when processing a WMI P2P listen start command (0xD00A) sent from host.

The Impact of CVE-2023-33109

This vulnerability has a CVSS v3.1 base score of 7.5, indicating a HIGH severity issue with a HIGH availability impact. It requires no privileges to exploit and has a low attack complexity.

Technical Details of CVE-2023-33109

This vulnerability affects numerous Qualcomm Snapdragon products across various versions. Some of the affected versions include Snapdragon 665, 730, 855, 888, and others.

Vulnerability Description

The vulnerability arises from a NULL Pointer Dereference in WLAN Firmware, leading to a Transient DOS condition.

Affected Systems and Versions

Qualcomm's Snapdragon products are impacted by this vulnerability, including multiple versions of mobile platforms, compute platforms, and modem-rf systems.

Exploitation Mechanism

The vulnerability can be exploited by sending a specific WMI P2P listen start command (0xD00A) from the host, triggering the NULL Pointer Dereference.

Mitigation and Prevention

To address CVE-2023-33109, immediate steps should be taken for mitigation and long-term security measures should be implemented.

Immediate Steps to Take

Users are advised to apply relevant security patches from Qualcomm and follow best security practices to prevent exploitation.

Long-Term Security Practices

Regularly update firmware and software, conduct security assessments, and monitor for any unusual network activity.

Patching and Updates

Qualcomm has released security bulletins with patches addressing this vulnerability. It is crucial to apply these patches promptly to mitigate the risk of exploitation.