CVE-2022-34301
First published: Tue Aug 23 2022(Updated: )
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.
Credit: cve@mitre.org cve@mitre.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Kidan Cryptopro Securedisk For Bitlocker | <2022-06-01 | |
| Redhat Enterprise Linux | =7.0 | |
| Redhat Enterprise Linux | =8.0 | |
| Redhat Enterprise Linux | =9.0 | |
| Microsoft Windows 10 | ||
| Microsoft Windows 10 | =20h2 | |
| Microsoft Windows 10 | =21h1 | |
| Microsoft Windows 10 | =21h2 | |
| Microsoft Windows 10 | =1607 | |
| Microsoft Windows 10 | =1809 | |
| Microsoft Windows 11 | ||
| Microsoft Windows 8.1 | ||
| Microsoft Windows RT 8.1 | ||
| Microsoft Windows Server 2012 | ||
| Microsoft Windows Server 2012 | =r2 | |
| Microsoft Windows Server 2016 | ||
| Microsoft Windows Server 2016 | =20h2 | |
| Microsoft Windows Server 2019 | ||
| Microsoft Windows Server 2022 |
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Reference Links
- https://edk2-docs.gitbook.io/understanding-the-uefi-secure-boot-chain/secure_boot_chain_in_uefi/uefi_secure_boot
- https://www.kb.cert.org/vuls/id/309662
- https://www.intel.com/content/www/us/en/security-center/advisory/intel-sa-01001.html
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=2120704
- https://access.redhat.com/errata/RHSA-2023:2487
- https://access.redhat.com/security/cve/cve-2022-34301
- https://bugzilla.redhat.com/show_bug.cgi?id=2120699
Frequently Asked Questions
What is CVE-2022-34301?
CVE-2022-34301 is a vulnerability in CryptoPro Secure Disk bootloaders that allows an attacker to bypass or tamper with Secure Boot protections.
What is the severity of CVE-2022-34301?
The severity of CVE-2022-34301 is rated as medium with a CVSS score of 6.7.
Which software is affected by CVE-2022-34301?
The affected software includes Kidan CryptoPro SecureDisk for BitLocker, Redhat Enterprise Linux versions 7.0 to 9.0, 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, and Microsoft Windows Server 2022.
How can an attacker exploit CVE-2022-34301?
An attacker can exploit CVE-2022-34301 by replacing the existing signed bootloader to load and execute arbitrary code in the pre-boot stage.
Are there any references available for CVE-2022-34301?
Yes, you can find more information about CVE-2022-34301 at the following references: [1] Understanding the UEFI Secure Boot Chain - UEFI Secure Boot, [2] CERT Vulnerability Note VU#309662.
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