CVE-2022-34303

MEDIUM

6.7

Descripcion

A flaw was found in Eurosoft bootloaders before 2022-06-01. An attacker may use this bootloader to bypass or tamper with Secure Boot protections. In order to load and execute arbitrary code in the pre-boot stage, an attacker simply needs to replace the existing signed bootloader currently in use with this bootloader. Access to the EFI System Partition is required for booting using external media.

Detalles CVE

Puntuacion CVSS v3.16.7

SeveridadMEDIUM

Vector CVSSCVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

Vector de ataqueLOCAL

ComplejidadLOW

Privilegios requeridosHIGH

Interaccion usuarioNONE

Publicado8/26/2022

Ultima modificacion11/21/2024

Fuentenvd

Avistamientos honeypot0

Productos afectados

eurosoft-uk:uefi_bootloadermicrosoft:windows_10microsoft:windows_11microsoft:windows_8.1microsoft:windows_rt_8.1microsoft:windows_server_2012microsoft:windows_server_2016microsoft:windows_server_2019microsoft:windows_server_2022redhat:enterprise_linux

Referencias

https://edk2-docs.gitbook.io/understanding-the-uefi-secure-boot-chain/secure_boot_chain_in_uefi/uefi_secure_boot(cve@mitre.org)

https://www.intel.com/content/www/us/en/security-center/advisory/intel-sa-01001.html(cve@mitre.org)

https://www.kb.cert.org/vuls/id/309662(cve@mitre.org)

https://edk2-docs.gitbook.io/understanding-the-uefi-secure-boot-chain/secure_boot_chain_in_uefi/uefi_secure_boot(af854a3a-2127-422b-91ae-364da2661108)

https://www.intel.com/content/www/us/en/security-center/advisory/intel-sa-01001.html(af854a3a-2127-422b-91ae-364da2661108)

https://www.kb.cert.org/vuls/id/309662(af854a3a-2127-422b-91ae-364da2661108)

Correlaciones IOC

Sin correlaciones registradas

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