CVE-2020-3704 : Exploit Details and Defense Strategies

This CVE affects a wide range of Qualcomm products and versions, potentially leading to a deadlock state due to processing invalid connection requests. Learn more about the impact, technical details, and mitigation strategies below.

Understanding CVE-2020-3704

This vulnerability affects various Qualcomm products, potentially causing deadlock states when processing nonstandard connection requests.

What is CVE-2020-3704?

CVE-2020-3704 involves processing invalid connection request PDUs with nonstandard intervals or timeouts, which can trigger deadlock states in peripheral systems.

The Impact of CVE-2020-3704

The vulnerability may allow attackers to exploit the Bluetooth peripheral firmware, potentially leading to system deadlock states.

Technical Details of CVE-2020-3704

Qualcomm products and versions are affected by this vulnerability, posing risks to system stability and security.

Vulnerability Description

The vulnerability arises from improper validation of nonstandard connection requests, potentially causing system deadlock states.

Affected Systems and Versions

Qualcomm products including Snapdragon Auto, Compute, Connectivity, IoT, Mobile, and more are impacted across various versions.

Exploitation Mechanism

Attackers can exploit this vulnerability by sending invalid connection requests with nonstandard parameters, triggering deadlock states in peripheral systems.

Mitigation and Prevention

Taking immediate steps and implementing long-term security practices are crucial to mitigate the risks associated with CVE-2020-3704.

Immediate Steps to Take

Apply patches and updates provided by Qualcomm promptly.
Monitor for any unusual Bluetooth device behavior.
Implement network segmentation to limit exposure to potential attacks.

Long-Term Security Practices

Regularly update firmware and software to address security vulnerabilities.
Conduct security assessments and penetration testing to identify and remediate potential weaknesses.
Educate users and administrators about secure Bluetooth device usage.

Patching and Updates

Qualcomm has released patches and updates to address CVE-2020-3704. Ensure timely installation of these updates to enhance system security.