CVE-2020-9453 : Security Advisory and Response

Epson iProjection v2.30 is affected by a vulnerability in the driver file EMP_MPAU.sys, allowing local users to cause a denial of service or other impacts due to lack of input validation.

Understanding CVE-2020-9453

In this section, we will delve into the details of CVE-2020-9453.

What is CVE-2020-9453?

CVE-2020-9453 is a vulnerability in Epson iProjection v2.30 that enables local users to trigger a denial of service (BSOD) or potentially other impacts by exploiting unvalidated input values from specific IOCtl calls.

The Impact of CVE-2020-9453

The vulnerability in EMP_MPAU.sys can lead to a denial of service condition or other unspecified impacts. The affected devices include \Device\EMPMPAUIO and \DosDevices\EMPMPAU.

Technical Details of CVE-2020-9453

Let's explore the technical aspects of CVE-2020-9453.

Vulnerability Description

The driver file EMP_MPAU.sys in Epson iProjection v2.30 does not properly validate input values from certain IOCtl calls, leading to the potential for a denial of service or other consequences.

Affected Systems and Versions

Product: Not applicable
Vendor: Not applicable
Version: Not applicable

Exploitation Mechanism

The vulnerability can be exploited by local users through specific IOCtl calls (0x9C402406 and 0x9C40240A) that are not properly validated, resulting in a denial of service or other impacts. The IOCtl 0x9C402402 specifically causes a NULL pointer dereference.

Mitigation and Prevention

Learn how to mitigate and prevent the CVE-2020-9453 vulnerability.

Immediate Steps to Take

Implement the latest security patches provided by Epson.
Restrict access to vulnerable systems to trusted users only.
Monitor system logs for any suspicious activities related to the vulnerability.

Long-Term Security Practices

Regularly update and patch all software and drivers to prevent similar vulnerabilities.
Conduct security training for users to raise awareness about potential risks and best practices.

Patching and Updates

Ensure that all systems running Epson iProjection v2.30 are updated with the latest patches and security fixes to address the CVE-2020-9453 vulnerability.