CVE-2020-9223 : Security Advisory and Response

A denial of service vulnerability affecting certain Huawei smartphones due to improper message processing, allowing remote attackers to trigger a DoS attack.

Understanding CVE-2020-9223

What is CVE-2020-9223?

This CVE identifies a denial of service vulnerability present in specific Huawei smartphones. The issue arises from the incorrect handling of abnormal messages, enabling malicious actors to exploit the flaw and initiate a denial of service attack on a particular module.

The Impact of CVE-2020-9223

The vulnerability could lead to a denial of service condition on the affected Huawei smartphones, disrupting normal device operation and potentially causing service unavailability.

Technical Details of CVE-2020-9223

Vulnerability Description

Denial of service vulnerability in Huawei smartphones
Caused by improper processing of abnormal messages
Exploitable by remote attackers

Affected Systems and Versions

HONOR 20 PRO: Versions earlier than 10.1.0.230(C432E9R5P1), 10.1.0.231(C10E3R3P2), 10.1.0.231(C185E3R5P1), 10.1.0.231(C636E3R3P1)
Princeton-AL10D: Versions earlier than 10.1.0.168(C00E166R4P11)
Yale-L21A: Versions earlier than 10.1.0.230(C432E9R5P1), 10.1.0.231(C10E3R3P2), 10.1.0.231(C185E2R2P1), 10.1.0.231(C636E3R3P1)
Yale-L61A: Versions earlier than 10.1.0.225(C432E3R1P2), 10.1.0.226(C10E3R1P1)

Exploitation Mechanism

The vulnerability can be exploited remotely by sending abnormal messages to the affected Huawei smartphones, triggering the denial of service condition.

Mitigation and Prevention

Immediate Steps to Take

Apply security patches provided by Huawei promptly
Monitor official Huawei security advisories for updates

Long-Term Security Practices

Regularly update device software to the latest versions
Implement network security measures to detect and prevent DoS attacks

Patching and Updates

Huawei has released patches to address the vulnerability
Ensure all affected devices are updated with the latest firmware releases