VulnerabilityModified
CVE-2022-34301
An attacker may use this bootloader to bypass or tamper with Secure Boot protections.
MEDIUM 6.7EPSS 0.98%
Does this matter?
Lower severity and a low EPSS score (0.98%). Track it; it rarely justifies an emergency change on its own.
Description
A flaw was found in CryptoPro Secure Disk 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.
- CVSS 3.1
- 6.7 MEDIUMCVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 0.98% probability · 60th percentile
- CISA KEV
- Not listed
- Affected
- kidan/cryptopro securedisk for bitlocker · redhat/enterprise linux · microsoft/windows 10 · microsoft/windows 11 · microsoft/windows 8.1 · microsoft/windows rt 8.1 · microsoft/windows server 2012 · microsoft/windows server 2016 · microsoft/windows server 2019 · microsoft/windows server 2022
- Source
- cve@mitre.org
References
- https://edk2-docs.gitbook.io/understanding-the-uefi-secure-boot-chain/secure_boot_chain_in_uefi/uefi_secure_bootThird Party Advisory
- https://www.intel.com/content/www/us/en/security-center/advisory/intel-sa-01001.html
- https://www.kb.cert.org/vuls/id/309662Third Party Advisory, US Government Resource
- https://edk2-docs.gitbook.io/understanding-the-uefi-secure-boot-chain/secure_boot_chain_in_uefi/uefi_secure_bootThird Party Advisory
- https://www.intel.com/content/www/us/en/security-center/advisory/intel-sa-01001.html
- https://www.kb.cert.org/vuls/id/309662Third Party Advisory, US Government Resource
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.