CVE-2021-33139 : Exploit Details and Defense Strategies

A vulnerability has been identified in Intel(R) Wireless Bluetooth(R) and Killer(TM) Bluetooth(R) products before version 22.100, potentially allowing an authenticated user to enable denial of service via adjacent access.

Understanding CVE-2021-33139

This CVE-2021-33139 affects certain Intel(R) Wireless Bluetooth(R) and Killer(TM) Bluetooth(R) products before version 22.100, posing a risk of enabling denial of service attacks.

What is CVE-2021-33139?

The vulnerability involves improper conditions check in the firmware of specific Intel(R) Wireless Bluetooth(R) and Killer(TM) Bluetooth(R) products, which can be exploited by an authenticated user to trigger denial of service through adjacent access.

The Impact of CVE-2021-33139

An attacker could potentially leverage this vulnerability to disrupt services, leading to a denial of service situation for affected devices and systems.

Technical Details of CVE-2021-33139

This section explores the technical aspects of the CVE-2021-33139 vulnerability.

Vulnerability Description

The flaw lies in the firmware of Intel(R) Wireless Bluetooth(R) and Killer(TM) Bluetooth(R) products before version 22.100, where an improper conditions check allows an authenticated user to exploit adjacent access for initiating denial of service attacks.

Affected Systems and Versions

Intel(R) Wireless Bluetooth(R) and Killer(TM) Bluetooth(R) products versions earlier than 22.100 are impacted by this vulnerability, potentially exposing them to exploitation.

Exploitation Mechanism

By exploiting the improper conditions check in the firmware, an authenticated user can trigger denial of service attacks through adjacent access, leading to service disruption.

Mitigation and Prevention

To address and prevent the risks associated with CVE-2021-33139, the following steps are recommended:

Immediate Steps to Take

Update affected Intel(R) Wireless Bluetooth(R) and Killer(TM) Bluetooth(R) products to version 22.100 or above to mitigate the vulnerability.

Long-Term Security Practices

Regularly monitor for security advisories and updates from Intel to stay informed about potential vulnerabilities.

Patching and Updates

Apply patches and firmware updates provided by Intel to ensure the security of Intel(R) Wireless Bluetooth(R) and Killer(TM) Bluetooth(R) products.