CVE-2020-13646 Explained : Impact and Mitigation

Cheetah free WiFi 5.1 driver file vulnerability

Understanding CVE-2020-13646

This CVE involves a vulnerability in the driver file of Cheetah free WiFi 5.1 that allows local users to cause a denial of service or other unspecified impacts.

What is CVE-2020-13646?

In Cheetah free WiFi 5.1, the driver file (liebaonat.sys) permits local users to trigger a denial of service (BSOD) or potentially other impacts due to inadequate validation of input values from specific IOCtl codes.

The Impact of CVE-2020-13646

The vulnerability can lead to a denial of service condition or other unspecified impacts, potentially affecting the stability and security of the system.

Technical Details of CVE-2020-13646

The technical aspects of this CVE are as follows:

Vulnerability Description

The vulnerability in the liebaonat.sys driver file allows local users to exploit specific IOCtl codes, potentially leading to a denial of service or other adverse effects.

Affected Systems and Versions

Product: Cheetah free WiFi 5.1
Vendor: Not applicable
Version: Not applicable

Exploitation Mechanism

The vulnerability arises from the lack of proper validation of input values from IOCtl codes 0x830020f8, 0x830020E0, 0x830020E4, or 0x8300210c, enabling local users to trigger the denial of service or other impacts.

Mitigation and Prevention

To address CVE-2020-13646, consider the following steps:

Immediate Steps to Take

Implement restrictions on access to vulnerable systems
Monitor and analyze system logs for any suspicious activities
Apply security patches or updates provided by the vendor

Long-Term Security Practices

Conduct regular security assessments and audits
Educate users on secure computing practices
Employ intrusion detection and prevention systems

Patching and Updates

Stay informed about security advisories from the vendor
Apply patches or updates promptly to mitigate the vulnerability