CVE-2023-24571 Explained : Impact and Mitigation

This is a detailed overview of CVE-2023-24571, a vulnerability found in Dell BIOS that could potentially lead to arbitrary code execution by a local authenticated malicious user with administrator privileges.

Understanding CVE-2023-24571

CVE-2023-24571 is a security vulnerability discovered in Dell BIOS systems, specifically affecting the Embedded Box PC 3000 and CPG BIOS products. The vulnerability arises due to Improper Input Validation, allowing a local authenticated attacker to exploit the system for arbitrary code execution.

What is CVE-2023-24571?

The CVE-2023-24571 vulnerability in Dell BIOS systems stems from a lack of proper input validation. This flaw enables a local authenticated attacker with administrator privileges to execute arbitrary code on the affected system, posing a severe security risk.

The Impact of CVE-2023-24571

The impact of CVE-2023-24571 is rated as high, with a CVSSv3 base score of 7.5. The vulnerability can lead to significant consequences such as compromised confidentiality, integrity, and availability of the affected systems. Given the high privileges required for exploitation, the risk level is elevated.

Technical Details of CVE-2023-24571

The vulnerability results from a flaw in Dell BIOS that allows attackers to bypass input validation mechanisms. Here are some key technical details:

Vulnerability Description

The Improper Input Validation vulnerability in Dell BIOS systems enables a local authenticated malicious user to execute arbitrary code on the affected system, potentially leading to a complete system compromise.

Affected Systems and Versions

The vulnerability impacts all BIOS versions of Dell Embedded Box PC 3000 and CPG BIOS systems.

Exploitation Mechanism

To exploit CVE-2023-24571, an attacker needs local access to the system and administrator privileges. By leveraging the lack of input validation in Dell BIOS, they can carry out arbitrary code execution, posing a serious threat to system security.

Mitigation and Prevention

Addressing CVE-2023-24571 requires immediate action and ongoing security measures to safeguard vulnerable systems.

Immediate Steps to Take

Update BIOS: Dell has released patches to address the vulnerability. Users should promptly update their systems with the latest BIOS version provided by Dell.
Monitor System Activity: Keep a close eye on system activity for any signs of unauthorized access or unusual behavior.

Long-Term Security Practices

Practice Least Privilege: Limit user privileges to reduce the impact of potential attacks.
Regular Security Audits: Conduct routine security audits to identify and address vulnerabilities proactively.

Patching and Updates

Stay informed about security advisories and updates from Dell. Regularly apply patches and updates to ensure that systems are protected against known vulnerabilities like CVE-2023-24571.