CVE-2023-28584 : Exploit Details and Defense Strategies

This article delves into the details of CVE-2023-28584, a vulnerability identified in Qualcomm's Snapdragon products.

Understanding CVE-2023-28584

CVE-2023-28584 refers to a vulnerability categorized as a Transient Denial of Service (DOS) in the WLAN host of affected Qualcomm Snapdragon products. This vulnerability occurs when a mobile station receives an invalid channel in Channel Switch Announcement Information Element (CSA IE) while executing a channel switch announcement (CSA).

What is CVE-2023-28584?

The vulnerability CVE-2023-28584 pertains to an improper authorization issue in the WLAN host of affected Qualcomm Snapdragon devices. When a mobile station receives an invalid channel during a channel switch announcement, it triggers a transient denial of service situation.

The Impact of CVE-2023-28584

The impact of CVE-2023-28584 is rated as high, with an attack vector over a network and affecting the availability of the system. The CVSS base score for this vulnerability is 7.5, indicating a high severity level. While there are no direct impacts on confidentiality or integrity, the availability of the system is significantly compromised.

Technical Details of CVE-2023-28584

This section delves deeper into the technical aspects of CVE-2023-28584, including a description of the vulnerability, affected systems and versions, and the exploitation mechanism.

Vulnerability Description

The vulnerability arises due to an improper authorization issue in the WLAN host of Qualcomm Snapdragon products. It occurs when a mobile station receives an invalid channel during a channel switch announcement process, leading to a transient denial of service condition.

Affected Systems and Versions

Multiple versions of Qualcomm Snapdragon products are impacted by CVE-2023-28584, including but not limited to AQT1000, FastConnect series, QCA series, Snapdragon Mobile Platforms, and various others.

Exploitation Mechanism

The exploitation of CVE-2023-28584 involves sending a mobile station an invalid channel during the channel switch announcement process. This triggers the vulnerable condition in the WLAN host of affected Snapdragon devices, leading to a temporary denial of service.

Mitigation and Prevention

To mitigate the risks associated with CVE-2023-28584, immediate steps should be taken, followed by long-term security practices and timely patching and updates.

Immediate Steps to Take

Advisable immediate steps include implementing network-level protections, monitoring for unauthorized channel switches, and reviewing WLAN host configurations to prevent unauthorized access.

Long-Term Security Practices

Establishing secure network configurations, conducting regular security audits, and staying informed about Qualcomm security bulletins are essential long-term security practices to mitigate vulnerability risks.

Patching and Updates

It is crucial to apply patches released by Qualcomm promptly. Regularly updating the firmware of affected Snapdragon devices can help address vulnerabilities like CVE-2023-28584 and enhance system security.

By understanding the technical details and implications of CVE-2023-28584, users can take proactive measures to secure their Qualcomm Snapdragon products and safeguard against potential exploitation of this vulnerability.