发布时间: 2022年9月23日
修改时间: 2022年9月23日
A flaw was found in New Horizon Datasys 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.
| NVD | openEuler | |
|---|---|---|
| CVSS评分 | 6.7 | 6.7 |
| Attack Vector | Local | Local |
| Attack Complexity | Low | Low |
| Privileges Required | High | High |
| User Interaction | None | None |
| Scope | Unchanged | Unchanged |
| Confidentiality | High | High |
| Integrity | High | High |
| Availability | High | High |
| 公告名 | 概要 | 发布时间 |
|---|---|---|
| KylinSec-SA-2022-2039 | A flaw was found in New Horizon Datasys 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. | 2022年9月23日 |
| 产品 | 包 | 状态 |
|---|---|---|
| KY3.4-4A | shim | Unaffected |
| KY3.4-5 | shim | Unaffected |
| KY3.5.1 | shim | Unaffected |
