CVE-2024-28047 in Processors
Summary
by MITRE • 02/13/2025
Improper input validation in UEFI firmware for some Intel(R) Processors may allow a privileged user to potentially enable information disclosure via local access.
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Analysis
by VulDB Data Team • 05/01/2026
The vulnerability identified as CVE-2024-28047 represents a critical weakness in the Unified Extensible Firmware Interface firmware implementation for certain Intel processors. This flaw manifests as improper input validation within the UEFI firmware layer, creating a potential vector for information disclosure attacks. The vulnerability specifically affects systems where Intel processors implement UEFI firmware components, making it particularly concerning for enterprise environments and critical infrastructure deployments. The issue arises from insufficient validation mechanisms that should normally prevent malformed or unexpected inputs from being processed within the firmware runtime environment.
The technical root cause of this vulnerability lies in the firmware's failure to properly validate user inputs before processing them within the UEFI execution context. When a privileged user accesses the system locally, they can potentially exploit this weakness to extract sensitive information from the firmware memory space or system registers. This represents a classic case of insufficient input sanitization that allows for data leakage through the firmware interface. The vulnerability operates at the firmware level, meaning it exists below the operating system layer and can potentially bypass traditional security controls that operate at higher system levels. The attack requires local access and privileged user credentials, but once exploited, it could provide adversaries with access to system configuration data, firmware versions, or other sensitive metadata stored within the UEFI environment.
The operational impact of CVE-2024-28047 extends beyond simple information disclosure, as UEFI firmware contains critical system configuration parameters and security settings that could be leveraged by attackers to escalate privileges or conduct more sophisticated attacks. The vulnerability aligns with CWE-20, which describes improper input validation, and represents a significant concern for organizations following ATT&CK framework's firmware security tactics. Systems utilizing affected Intel processors may experience unauthorized access to firmware memory regions, potentially exposing sensitive data such as cryptographic keys, system configuration settings, or hardware identification information. This vulnerability particularly affects enterprise environments where firmware security is often overlooked in favor of traditional operating system security measures, creating a potential blind spot in overall security postures.
Mitigation strategies for this vulnerability should focus on firmware updates from Intel and system vendors, as these patches typically address the input validation flaws within the UEFI implementation. Organizations should implement firmware integrity monitoring solutions to detect unauthorized modifications to the UEFI environment and establish regular firmware update procedures to maintain system security. The vulnerability also highlights the importance of following security best practices outlined in industry standards such as NIST SP 800-147, which emphasizes the need for secure firmware development and deployment practices. System administrators should consider implementing access controls and privilege management to limit local access to systems where this vulnerability exists, while also monitoring for unusual firmware access patterns that might indicate exploitation attempts. Additionally, organizations should review their firmware security policies and ensure that firmware components receive the same level of security attention as operating systems and applications.