CVE-2022-32483 is a medium-severity vulnerability identified in the Dell BIOS. This vulnerability allows a local authenticated malicious user with admin privileges to potentially exploit it in order to modify a UEFI variable. The attack vector is local, and the complexity is low, making it crucial for organizations to address this vulnerability.
The CVSS score for this vulnerability is 5.6, indicating a medium level of severity. Organizations should take this score seriously as it highlights potential risks associated with exploitation. The vulnerability was published on October 12, 2022, and has been modified as of November 21, 2024.
Risk to organizations includes unauthorized modification of UEFI variables, which can lead to further attacks or system instability. Given the nature of the vulnerability, organizations should prioritize patching immediately.
As of now, there are no public exploits confirmed nor is it included in the Known Exploited Vulnerabilities (KEV) catalog. Nevertheless, organizations should remain vigilant.
Vulnerability Details
Dell BIOS contains an improper input validation vulnerability. A local authenticated malicious user with admin privileges may potentially exploit this vulnerability in order to modify a UEFI variable. The vulnerability has been classified under CWE-20.
The CVSS 3.1 vector string is CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:L/I:H/A:L, which indicates that it requires high privileges and has low user interaction.
The affected systems include various Dell Alienware and Inspiron models, as detailed in the configurations section.
Technical Analysis
The root cause of this vulnerability lies in improper input validation within the BIOS of affected Dell devices. Attackers may leverage this flaw by manipulating UEFI variables, which can lead to unauthorized changes in system configurations.
The attack vector is local, requiring a high level of access to the system. The attack complexity is low, meaning that even users with high privileges can exploit it without significant effort. No user interaction is required, and the impact on confidentiality is low, while the integrity impact is high, as it can allow modification of critical system settings.
Risk & Impact Analysis
The real-world deployment risk associated with CVE-2022-32483 is significant. If exploited, attackers may gain control over UEFI variables, which could lead to further attacks or system instability. Organizations that deploy Dell systems, particularly those that utilize high-security environments, should consider the blast radius potential from this vulnerability.
Organizations should schedule remediation as part of their incident response plans. The urgency for patching is medium, given the potential for exploitation and the sensitivity of the systems affected.
Exploitation Status
Signal | Status |
|---|---|
Known Exploit | No |
Public PoC | No |
Actively Exploited | No |
Ransomware Use | No |
Affected Versions
All versions prior to vendor patch are affected, specifically Dell Alienware and Inspiron models, including various firmware versions.
Mitigation & Remediation
Organizations should validate remediation through penetration testing to identify similar weaknesses. Dell has issued patches to address this vulnerability, and affected organizations should prioritize applying these updates.
Detection Guidance
For detection purposes, organizations should monitor logs for unauthorized attempts to modify UEFI variables and review system integrity regularly.
AppSecure Threat Intelligence Insight
The long-term significance of CVE-2022-32483 lies in its demonstration of the risks associated with improper input validation in firmware. Security teams should take this opportunity to assess their security posture, examining patterns of vulnerabilities and applying lessons learned to enhance their defensive strategies.
For further reading on vulnerability management, organizations may refer to the vulnerability management program design guide and ensure their systems are resilient against similar threats.
Organizations should remain aware of emerging threats and continuously adapt their security measures to safeguard their environments effectively.
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
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