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Under the cloak of UEFI Secure Boot: Introducing CVE-2024-7344
Under the cloak of UEFI Secure Boot: Introducing CVE-2024-7344
ESET researchers have discovered a vulnerability that allows bypassing UEFI Secure Boot, affecting the majority of UEFI-based systems. This vulnerability, assigned CVE-2024-7344, was found in a UEFI application signed by Microsoft’s Microsoft Corporation UEFI CA 2011 third-party UEFI certificate. Exploitation of this vulnerability leads to the execution of untrusted code during system boot, enabling potential attackers to easily deploy malicious UEFI bootkits (such as Bootkitty or BlackLotus) even on systems with UEFI Secure Boot enabled, regardless of the installed operating system.
·welivesecurity.com·
Under the cloak of UEFI Secure Boot: Introducing CVE-2024-7344
UEFIcanhazbufferoverflow: Widespread Impact from Vulnerability in Popular PC and Server Firmware
UEFIcanhazbufferoverflow: Widespread Impact from Vulnerability in Popular PC and Server Firmware
Summary Eclypsium Automata, our automated binary analysis system, has identified a high impact vulnerability (CVE-2024-0762 with a reported CVSS of 7.5) in the Phoenix SecureCore UEFI firmware that runs on multiple families of Intel Core desktop and mobile processors. The issue involves an unsafe variable in the Trusted Platform Module (TPM) configuration that could lead […]
·eclypsium.com·
UEFIcanhazbufferoverflow: Widespread Impact from Vulnerability in Popular PC and Server Firmware
BlackLotus UEFI Bootkit Source Code Leaked on GitHub
BlackLotus UEFI Bootkit Source Code Leaked on GitHub
The source code for the BlackLotus UEFI bootkit has been shared publicly on GitHub, albeit with several modifications compared to the original malware. Designed specifically for Windows, the bootkit emerged on hacker forums in October last year, being advertised with APT-level capabilities such as secure boot and user access control (UAC) bypass and the ability to disable security applications and defense mechanisms on victim systems.
·securityweek.com·
BlackLotus UEFI Bootkit Source Code Leaked on GitHub