CVE-2021-22399 : Exploit Details and Defense Strategies
Discover how CVE-2021-22399 impacts Huawei P30 smartphones. Learn about the Bluetooth DoS vulnerability, affected versions, and steps to secure your device against potential attacks.
A DoS vulnerability affecting the Bluetooth function of certain Huawei smartphones has been identified. Attackers can exploit this vulnerability by sending specific broadcasts using third-party apps, leading to a crash of the Bluetooth module.
Understanding CVE-2021-22399
This CVE pertains to a Denial of Service vulnerability in the Bluetooth function of Huawei P30 smartphones.
What is CVE-2021-22399?
The Bluetooth function of Huawei P30 devices is susceptible to a Denial of Service (DoS) attack. Threat actors can trigger the vulnerability by broadcasting specific signals through third-party applications, causing the Bluetooth module to crash.
The Impact of CVE-2021-22399
This vulnerability can be leveraged to disrupt the Bluetooth functionality on affected Huawei P30 smartphones, resulting in abnormal Bluetooth behavior.
Technical Details of CVE-2021-22399
This section delves into the specifics of the CVE, detailing the vulnerability, affected systems, and how it can be exploited.
Vulnerability Description
The DoS vulnerability in the Bluetooth function of Huawei P30 devices enables attackers to crash the Bluetooth module, rendering the Bluetooth function dysfunctional.
Affected Systems and Versions
The affected product versions include Huawei P30 with software versions 10.0.0.195(C432E22R2P5), 10.0.0.200(C00E85R2P11), 10.0.0.200(C461E6R3P1), 10.0.0.201(C10E7R5P1), 10.0.0.201(C185E4R7P1), 10.0.0.206(C605E19R1P3), 10.0.0.209(C636E6R3P4), and 10.0.0.210(C635E3R2P4), along with versions earlier than 10.1.0.165(C01E165R2P11).
Exploitation Mechanism
By leveraging third-party apps to send specific broadcasts, malicious actors can exploit this vulnerability and disrupt the Bluetooth function of the affected devices.
Mitigation and Prevention
Explore the necessary actions to mitigate the risks posed by CVE-2021-22399 and secure your Huawei P30 devices.
Immediate Steps to Take
Ensure that your Huawei P30 device is updated with the latest security patches to mitigate the risk of a DoS attack on the Bluetooth function.
Long-Term Security Practices
Adopting proper security measures such as avoiding untrusted apps and maintaining updated software can help prevent potential vulnerabilities.
Patching and Updates
Regularly check for and apply security updates released by Huawei to address known vulnerabilities and enhance device security.