CVE-2022-34422 : Vulnerability Insights and Analysis
Get insights into CVE-2022-34422 affecting Dell PowerEdge BIOS. Understand the impact, technical details, and mitigation steps for this high-severity vulnerability.
This article provides detailed information on CVE-2022-34422 affecting Dell PowerEdge and Dell Precision BIOS.
Understanding CVE-2022-34422
CVE-2022-34422 is an Improper SMM communication buffer verification vulnerability found in Dell PowerEdge and Dell Precision BIOS software.
What is CVE-2022-34422?
Dell PowerEdge BIOS and Dell Precision BIOS are vulnerable, allowing a local malicious user to potentially execute arbitrary code or cause denial of service due to improper SMM communication buffer verification.
The Impact of CVE-2022-34422
With a CVSS base score of 7.5, the vulnerability has a high severity rating, impacting confidentiality, integrity, and availability. It requires high privileges for exploitation and has a high attack complexity.
Technical Details of CVE-2022-34422
The vulnerability is classified under CWE-119 (Improper Restriction of Operations within the Bounds of a Memory Buffer) and has a CVSS v3.1 score of 7.5.
Vulnerability Description
The flaw allows a local attacker to exploit the SMM communication buffer, potentially leading to arbitrary code execution or denial of service.
Affected Systems and Versions
Dell PowerEdge Platforms including 14G and 15G, as well as Dell Precision BIOS, are impacted by this vulnerability.
Exploitation Mechanism
A local malicious user with high privileges can exploit the vulnerability by manipulating the SMM communication buffer.
Mitigation and Prevention
To secure your system against CVE-2022-34422, follow these recommendations:
Immediate Steps to Take
- Update Dell PowerEdge and Dell Precision BIOS to the latest version provided by Dell.
- Limit physical access to systems to reduce the risk of local attacks.
Long-Term Security Practices
- Regularly monitor Dell security advisories for updates and patches.
- Implement least privilege access control to minimize the impact of potential vulnerabilities.
Patching and Updates
Install security updates and patches released by Dell to address the vulnerability.