CVE-2022-34303

MEDIUM

6.7

Descricao

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.

Detalhes CVE

Pontuacao CVSS v3.16.7

SeveridadeMEDIUM

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

Vetor de ataqueLOCAL

ComplexidadeLOW

Privilegios necessariosHIGH

Interacao do usuarioNONE

Publicado8/26/2022

Ultima modificacao11/21/2024

Fontenvd

Avistamentos honeypot0

Produtos afetados

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)

Correlacoes IOC

Sem correlacoes registradas

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