CVE-2020-9239 : Exploit Details and Defense Strategies

Huawei smartphones BLA-A09, BLA-TL00B, Berkeley-L09, Duke-L09, HUAWEI P20, HUAWEI P20 Pro, Jimmy-AL00A, LON-L29D, NEO-AL00D, Stanford-AL00, Toronto-AL00, Toronto-AL00A, Toronto-TL10 are affected by an information leak vulnerability due to a design error.

Understanding CVE-2020-9239

This CVE involves an information leak vulnerability affecting various Huawei smartphone models.

What is CVE-2020-9239?

This CVE identifies an information leak vulnerability in multiple Huawei smartphone models, allowing attackers to exploit a design error that lacks input control.

The Impact of CVE-2020-9239

The vulnerability could lead to unauthorized access to sensitive information stored on the affected Huawei smartphones, potentially compromising user data and privacy.

Technical Details of CVE-2020-9239

The vulnerability details and affected systems are outlined below.

Vulnerability Description

The vulnerability stems from a design flaw that fails to control input, enabling attackers to leak sensitive information from the affected Huawei smartphones.

Affected Systems and Versions

BLA-A09: Versions 8.0.0.123(C212), earlier than 8.0.0.123(C567), earlier than 8.0.0.123(C797)
BLA-TL00B: Earlier than 8.1.0.326(C01)
Berkeley-L09: Earlier than 8.0.0.163(C10), earlier than 8.0.0.163(C432), earlier than 8.0.0.163(C636), earlier than 8.0.0.172(C10)
Duke-L09: Duke-L09C10B187, Duke-L09C432B189, Duke-L09C636B189
HUAWEI P20: Earlier than 8.0.1.16(C00)
HUAWEI P20 Pro: Earlier than 8.1.0.152(C00)
Jimmy-AL00A: Earlier than Jimmy-AL00AC00B172
LON-L29D: LON-L29DC721B192
NEO-AL00D: Earlier than 8.1.0.172(C786)
Stanford-AL00: Stanford-AL00C00B123
Toronto-AL00: Earlier than Toronto-AL00AC00B225
Toronto-AL00A: Earlier than Toronto-AL00AC00B225
Toronto-TL10: Earlier than Toronto-TL10C01B225

Exploitation Mechanism

Attackers can exploit this vulnerability by leveraging the lack of input control in the affected Huawei smartphone models to gain unauthorized access to sensitive data.

Mitigation and Prevention

Protecting against and addressing the CVE-2020-9239 vulnerability is crucial for maintaining the security of the affected Huawei smartphones.

Immediate Steps to Take

Update the affected devices to the latest firmware versions provided by Huawei.
Implement security best practices to safeguard sensitive information on the smartphones.

Long-Term Security Practices

Regularly monitor for security updates and patches from Huawei.
Educate users on safe browsing habits and the importance of keeping their devices updated.

Patching and Updates

Ensure timely installation of security patches and updates released by Huawei to address the information leak vulnerability in the affected smartphone models.