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 |
|---|---|
| https://edk2-docs.gitbook.io/understanding-the-uefi-secure-boot-chain/secure_boot_chain_in_uefi/uefi_secure_boot | Third Party Advisory |
| https://www.intel.com/content/www/us/en/security-center/advisory/intel-sa-01001.html | |
| https://www.kb.cert.org/vuls/id/309662 | Third Party Advisory US Government Resource |
| https://edk2-docs.gitbook.io/understanding-the-uefi-secure-boot-chain/secure_boot_chain_in_uefi/uefi_secure_boot | Third Party Advisory |
| https://www.intel.com/content/www/us/en/security-center/advisory/intel-sa-01001.html | |
| https://www.kb.cert.org/vuls/id/309662 | Third Party Advisory US Government Resource |
Configurations
Configuration 1 (hide)
|
Configuration 2 (hide)
|
Configuration 3 (hide)
|
History
21 Nov 2024, 07:09
| Type | Values Removed | Values Added |
|---|---|---|
| References | () https://edk2-docs.gitbook.io/understanding-the-uefi-secure-boot-chain/secure_boot_chain_in_uefi/uefi_secure_boot - Third Party Advisory | |
| References | () https://www.intel.com/content/www/us/en/security-center/advisory/intel-sa-01001.html - | |
| References | () https://www.kb.cert.org/vuls/id/309662 - Third Party Advisory, US Government Resource |
01 Sep 2022, 19:16
| Type | Values Removed | Values Added |
|---|---|---|
| CVSS |
v2 : v3 : |
v2 : unknown
v3 : 6.7 |
| CPE | cpe:2.3:o:microsoft:windows_server_2022:-:*:*:*:*:*:*:* cpe:2.3:o:microsoft:windows_10:-:*:*:*:*:*:*:* cpe:2.3:o:microsoft:windows_server_2016:20h2:*:*:*:*:*:*:* cpe:2.3:o:microsoft:windows_8.1:-:*:*:*:*:*:*:* cpe:2.3:o:microsoft:windows_server_2012:-:*:*:*:*:*:*:* cpe:2.3:o:microsoft:windows_server_2016:-:*:*:*:*:*:*:* cpe:2.3:o:microsoft:windows_rt_8.1:-:*:*:*:*:*:*:* cpe:2.3:o:microsoft:windows_server_2012:r2:*:*:*:*:*:*:* cpe:2.3:o:microsoft:windows_server_2019:-:*:*:*:*:*:*:* cpe:2.3:o:microsoft:windows_11:-:*:*:*:*:*:*:* cpe:2.3:o:microsoft:windows_10:21h1:*:*:*:*:*:*:* cpe:2.3:o:eurosoft-uk:uefi_bootloader:*:*:*:*:*:*:*:* cpe:2.3:o:microsoft:windows_10:21h2:*:*:*:*:*:*:* cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:*:*:*:* cpe:2.3:o:redhat:enterprise_linux:7.0:*:*:*:*:*:*:* cpe:2.3:o:microsoft:windows_10:1809:*:*:*:*:*:*:* cpe:2.3:o:redhat:enterprise_linux:9.0:*:*:*:*:*:*:* cpe:2.3:o:microsoft:windows_10:1607:*:*:*:*:*:*:* cpe:2.3:o:microsoft:windows_10:20h2:*:*:*:*:*:*:* |
|
| CWE | NVD-CWE-noinfo | |
| References | (MISC) https://www.kb.cert.org/vuls/id/309662 - Third Party Advisory, US Government Resource | |
| References | (MISC) https://edk2-docs.gitbook.io/understanding-the-uefi-secure-boot-chain/secure_boot_chain_in_uefi/uefi_secure_boot - Third Party Advisory |
26 Aug 2022, 18:47
| Type | Values Removed | Values Added |
|---|---|---|
| New CVE |
Information
Published : 2022-08-26 18:15
Updated : 2024-11-21 07:09
NVD link : CVE-2022-34303
Mitre link : CVE-2022-34303
CVE.ORG link : CVE-2022-34303
JSON object : View
Products Affected
eurosoft-uk
- uefi_bootloader
redhat
- enterprise_linux
microsoft
- windows_server_2016
- windows_server_2019
- windows_server_2022
- windows_11
- windows_rt_8.1
- windows_10
- windows_8.1
- windows_server_2012
CWE