CVE-2022-24419 : Exploit Details and Defense Strategies

Dell BIOS contains an improper input validation vulnerability that allows a local authenticated malicious user to exploit it using an SMI to execute arbitrary code during SMM.

Understanding CVE-2022-24419

This CVE identifies a security vulnerability in Dell BIOS that could lead to arbitrary code execution.

What is CVE-2022-24419?

CVE-2022-24419 is an improper input validation vulnerability in Dell BIOS. An attacker with local authenticated access can leverage this flaw to gain unauthorized code execution using SMM.

The Impact of CVE-2022-24419

The impact of this vulnerability is rated as high due to its potential for arbitrary code execution, confidentiality, integrity, and availability impacts.

Technical Details of CVE-2022-24419

Here are the technical details regarding this CVE:

Vulnerability Description

The vulnerability in Dell BIOS is due to improper input validation, which could be exploited through an SMI by a local authenticated user.

Affected Systems and Versions

The affected product is CPG BIOS by Dell with versions less than 1.16.

Exploitation Mechanism

A local authenticated malicious user can exploit this vulnerability by utilizing an SMI to execute arbitrary code during System Management Mode (SMM).

Mitigation and Prevention

To mitigate the risks associated with CVE-2022-24419, consider the following steps:

Immediate Steps to Take

Apply security updates provided by Dell to fix the vulnerability.
Monitor system logs for any suspicious activities.

Long-Term Security Practices

Implement the principle of least privilege for system users.
Conduct regular security training for employees on best practices.

Patching and Updates

Regularly update BIOS versions to the latest recommended by Dell to address security vulnerabilities.