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I. Basic Information for CVE-2023-4001
Vulnerability Information
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Vulnerability Title
Grub2: bypass the grub password protection feature
Source: NVD (National Vulnerability Database)
Vulnerability Description
An authentication bypass flaw was found in GRUB due to the way that GRUB uses the UUID of a device to search for the configuration file that contains the password hash for the GRUB password protection feature. An attacker capable of attaching an external drive such as a USB stick containing a file system with a duplicate UUID (the same as in the "/boot/" file system) can bypass the GRUB password protection feature on UEFI systems, which enumerate removable drives before non-removable ones. This issue was introduced in a downstream patch in Red Hat's version of grub2 and does not affect the upstream package.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Source: NVD (National Vulnerability Database)
Vulnerability Type
使用欺骗进行的认证绕过
Source: NVD (National Vulnerability Database)
Vulnerability Title
grub2 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
grub2是美国GNU社区的一款Linux系统引导程序。 grub2 存在安全漏洞，该漏洞源于GRUB 使用设备的 UUID 来搜索包含 GRUB 密码保护功能的密码哈希的配置文件，导致身份验证绕过缺陷，攻击者利用该漏洞可以绕过 UEFI 系统上的 GRUB 密码保护功能。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
VendorProductAffected VersionsCPESubscribe
Red HatRed Hat Enterprise Linux 9 1:2.06-70.el9_3.2 ~ * cpe:/o:redhat:enterprise_linux:9::baseos
Red HatRed Hat Enterprise Linux 9.0 Extended Update Support 1:2.06-27.el9_0.16 ~ * cpe:/o:redhat:rhel_eus:9.0::baseos
Red HatRed Hat Enterprise Linux 9.2 Extended Update Support 1:2.06-61.el9_2.2 ~ * cpe:/o:redhat:rhel_eus:9.2::baseos
Red HatRed Hat Enterprise Linux 8-cpe:/o:redhat:enterprise_linux:8
II. Public POCs for CVE-2023-4001
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III. Intelligence Information for CVE-2023-4001
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IV. Related Vulnerabilities
Same product: Red Hat Enterprise Linux 9
Same vendor: Red Hat
Same weakness: CWE-290
V. Comments for CVE-2023-4001

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