漏洞标题
Grub2: commands/dump: 安全启动启用时dump命令不受限制
漏洞描述信息
在GRUB2中发现了一个漏洞。当GRUB处于锁定模式时,dump命令并未被禁用,这使得用户能够读取任何内存信息。攻击者可以利用这一点从内存中提取签名、盐值和其他敏感信息。
CVSS信息
CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:N/A:N
漏洞类别
信息暴露
漏洞标题
Grub2: commands/dump: the dump command is not in lockdown when secure boot is enabled
漏洞描述信息
A flaw was found in grub2. Grub's dump command is not blocked when grub is in lockdown mode, which allows the user to read any memory information, and an attacker may leverage this in order to extract signatures, salts, and other sensitive information from the memory.
CVSS信息
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N
漏洞类别
违背信任边界