CVE-2019-8372 : Vulnerability Insights and Analysis

CVE-2019-8372 was published on February 18, 2019, and relates to a vulnerability in the LHA.sys driver version earlier than 1.1.1811.2101 in LG Device Manager. This vulnerability allows users with low privileges to access and modify any physical memory, leading to the elevation of system privileges.

Understanding CVE-2019-8372

This section provides insights into the nature and impact of the CVE-2019-8372 vulnerability.

What is CVE-2019-8372?

The LHA.sys driver version prior to 1.1.1811.2101 in LG Device Manager exposes a feature that permits low-privileged users to manipulate physical memory through specially crafted IOCTL requests, resulting in the escalation of system privileges. The vulnerability stems from a symbolic link and an open DACL associated with the device object.

The Impact of CVE-2019-8372

The vulnerability in CVE-2019-8372 poses a significant security risk as it allows unauthorized users to gain elevated system privileges by accessing and modifying physical memory through the vulnerable driver.

Technical Details of CVE-2019-8372

Explore the technical aspects of the CVE-2019-8372 vulnerability.

Vulnerability Description

The LHA.sys driver version earlier than 1.1.1811.2101 in LG Device Manager enables low-privileged users to read and write arbitrary physical memory via specially crafted IOCTL requests, leading to the escalation of system privileges due to the presence of a symbolic link and an open DACL associated with the device object.

Affected Systems and Versions

Affected Product: n/a
Affected Vendor: n/a
Affected Version: n/a

Exploitation Mechanism

The vulnerability is exploited by leveraging specially manipulated IOCTL requests to access and modify physical memory, thereby gaining higher system privileges.

Mitigation and Prevention

Learn how to mitigate the risks associated with CVE-2019-8372.

Immediate Steps to Take

Disable or restrict access to the vulnerable driver if possible.
Monitor and restrict IOCTL requests to prevent unauthorized memory access.

Long-Term Security Practices

Regularly update and patch the LG Device Manager to ensure the latest security fixes are in place.
Implement the principle of least privilege to restrict user access and minimize the impact of potential vulnerabilities.

Patching and Updates

Ensure that the LHA.sys driver is updated to version 1.1.1811.2101 or later to address the vulnerability and enhance system security.