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.
References
Link | Resource |
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https://edk2-docs.gitbook.io/understanding-the-uefi-secure-boot-chain/secure_boot_chain_in_uefi/uefi_secure_boot | Third Party Advisory |
https://www.kb.cert.org/vuls/id/309662 | Third Party Advisory US Government Resource |
Configurations
Configuration 1 (hide)
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Configuration 2 (hide)
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Configuration 3 (hide)
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Information
Published : 2022-08-26 11:15
Updated : 2022-09-01 12:16
NVD link : CVE-2022-34303
Mitre link : CVE-2022-34303
JSON object : View
CWE
Products Affected
microsoft
- windows_server_2016
- windows_rt_8.1
- windows_server_2019
- windows_10
- windows_8.1
- windows_server_2022
- windows_11
- windows_server_2012
redhat
- enterprise_linux
eurosoft-uk
- uefi_bootloader