CVE-2022-35407 : Vulnerability Insights and Analysis

A stack buffer overflow vulnerability has been discovered in Insyde InsydeH2O with kernel versions 5.0 through 5.5, leading to arbitrary code execution in the SetupUtility driver on Intel platforms. This vulnerability allows an attacker to manipulate UEFI variables which can result in code execution. Here's what you need to know about CVE-2022-35407.

Understanding CVE-2022-35407

This section will provide insights into the nature of the vulnerability and its potential impact.

What is CVE-2022-35407?

The CVE-2022-35407 vulnerability is a stack buffer overflow issue present in the SetupUtility driver of Insyde InsydeH2O on Intel platforms running kernel versions 5.0 through 5.5. Exploiting this vulnerability can allow an attacker to execute arbitrary code by manipulating specific UEFI variables.

The Impact of CVE-2022-35407

The impact of this vulnerability can be severe as it enables unauthorized code execution, compromising the integrity and security of affected systems.

Technical Details of CVE-2022-35407

In this section, we delve into the technical aspects of the CVE-2022-35407 vulnerability.

Vulnerability Description

The vulnerability arises due to a stack buffer overflow in the SetupUtility driver, allowing an attacker to overwrite buffers and execute arbitrary code.

Affected Systems and Versions

All Intel platforms running Insyde InsydeH2O with kernel versions 5.0 through 5.5 are affected by this vulnerability.

Exploitation Mechanism

By manipulating UEFI variables and causing the buffer to be overwritten, an attacker can exploit this vulnerability to execute arbitrary code.

Mitigation and Prevention

This section outlines steps to mitigate and prevent the exploitation of CVE-2022-35407.

Immediate Steps to Take

Organizations should apply security patches provided by Insyde to address this vulnerability promptly.
Monitor for any unauthorized changes to UEFI variables.

Long-Term Security Practices

Implement secure coding practices to prevent buffer overflows and other memory-related vulnerabilities.
Regularly update firmware and system software to protect against known vulnerabilities.

Patching and Updates

Keep systems up to date with the latest security patches and firmware updates from the vendor to mitigate the risk of exploitation.