CVE-2022-34460 : What You Need to Know

Dell BIOS versions prior to 2.17.0 are affected by an improper input validation vulnerability, allowing a local authenticated malicious user to exploit it for arbitrary code execution in SMRAM.

Understanding CVE-2022-34460

This section will delve into what CVE-2022-34460 entails and its potential impact.

What is CVE-2022-34460?

Prior Dell BIOS versions contain an improper input validation vulnerability. A local authenticated malicious user may potentially exploit this vulnerability by using an SMI to gain arbitrary code execution in SMRAM.

The Impact of CVE-2022-34460

The vulnerability poses a high risk, with a CVSS base score of 7.5. It has a high severity impact on confidentiality, integrity, and availability, with a requirement of high privileges for exploitation.

Technical Details of CVE-2022-34460

This section will provide detailed technical insights into the vulnerability, affected systems, and exploitation mechanisms.

Vulnerability Description

The vulnerability resides in the improper input validation within Dell BIOS versions, enabling a malicious user to execute arbitrary code in SMRAM.

Affected Systems and Versions

Dell BIOS versions prior to 2.17.0 are affected by this vulnerability.

Exploitation Mechanism

A local authenticated malicious user can leverage an SMI to trigger the vulnerability and achieve arbitrary code execution in SMRAM.

Mitigation and Prevention

Explore immediate steps to secure your system and long-term security practices.

Immediate Steps to Take

Update to BIOS version 2.17.0 or above to mitigate the vulnerability. Ensure proper configuration and monitoring of BIOS settings.

Long-Term Security Practices

Regularly check for BIOS updates and security advisories from Dell. Implement robust access controls and monitoring mechanisms to prevent unauthorized system changes.

Patching and Updates

Stay informed about security patches and updates released by Dell for BIOS to address known vulnerabilities.