CVE-2022-34408 : Security Advisory and Response
Dell PowerEdge BIOS and Dell Precision BIOS contain a high-severity vulnerability that allows local malicious users to execute arbitrary code or cause denial of service. Learn about impact, affected systems, and mitigation.
Understanding CVE-2022-34408
Dell PowerEdge BIOS and Dell Precision BIOS have been found to contain an Improper SMM communication buffer verification vulnerability that could be exploited by a local malicious user with high privileges.
What is CVE-2022-34408?
This CVE refers to a vulnerability in Dell PowerEdge BIOS and Dell Precision BIOS that allows 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-2022-34408
The impact of this vulnerability is rated as high, with a CVSS base severity score of 7.5. It can lead to arbitrary code execution or denial of service, posing a significant risk to affected systems.
Technical Details of CVE-2022-34408
The technical details of the CVE include the following:
Vulnerability Description
The vulnerability, categorized as CWE-119, involves improper restriction of operations within the bounds of a memory buffer, allowing for exploitation by a local user with high privileges.
Affected Systems and Versions
The affected systems include Dell PowerEdge Platform versions 14G and 15G.
Exploitation Mechanism
The vulnerability can be exploited by a local malicious user with high privileges, leading to arbitrary code execution or denial of service.
Mitigation and Prevention
To mitigate the risks associated with CVE-2022-34408, the following steps are recommended:
Immediate Steps to Take
- Apply patches and updates from Dell to address the vulnerability in PowerEdge and Precision BIOS.
- Monitor for any signs of unauthorized access or suspicious activity on the affected systems.
Long-Term Security Practices
- Regularly update BIOS and firmware of Dell systems to maintain security hygiene.
- Implement strict access controls and least privilege principles to limit exposure to potential threats.
Patching and Updates
Ensure timely installation of security patches and updates provided by Dell to fix the vulnerability in affected systems.