LogoFAIL: UEFI Vulnerabilities Expose Devices to Stealth Malware Attacks
Dec 04, 2023
Technology / Firmware Security
The Unified Extensible Firmware Interface ( UEFI ) code from various independent firmware/BIOS vendors (IBVs) has been found vulnerable to potential attacks through high-impact flaws in image parsing libraries embedded into the firmware. The shortcomings, collectively labeled LogoFAIL by Binarly, "can be used by threat actors to deliver a malicious payload and bypass Secure Boot, Intel Boot Guard, and other security technologies by design." Furthermore, they can be weaponized to bypass security solutions and deliver persistent malware to compromised systems during the boot phase by injecting a malicious logo image file into the EFI system partition . While the issues are not silicon-specific, meaning they impact both x86 and ARM-based devices, they are also UEFI and IBV-specific. The vulnerabilities comprise a heap-based buffer overflow flaw and an out-of-bounds read, details of which are expected to be made public later this week at the Black Hat Europe con...
