fkie_cve-2023-4001
Vulnerability from fkie_nvd
Published
2024-01-15 11:15
Modified
2024-11-21 08:34
Severity ?
6.8 (Medium) - CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
6.8 (Medium) - CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Summary
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.
References
secalert@redhat.comhttps://access.redhat.com/errata/RHSA-2024:0437
secalert@redhat.comhttps://access.redhat.com/errata/RHSA-2024:0456
secalert@redhat.comhttps://access.redhat.com/errata/RHSA-2024:0468
secalert@redhat.comhttps://access.redhat.com/security/cve/CVE-2023-4001Third Party Advisory
secalert@redhat.comhttps://bugzilla.redhat.com/show_bug.cgi?id=2224951Issue Tracking, Vendor Advisory
secalert@redhat.comhttps://dfir.ru/2024/01/15/cve-2023-4001-a-vulnerability-in-the-downstream-grub-boot-manager/Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108http://www.openwall.com/lists/oss-security/2024/01/15/3
af854a3a-2127-422b-91ae-364da2661108https://access.redhat.com/errata/RHSA-2024:0437
af854a3a-2127-422b-91ae-364da2661108https://access.redhat.com/errata/RHSA-2024:0456
af854a3a-2127-422b-91ae-364da2661108https://access.redhat.com/errata/RHSA-2024:0468
af854a3a-2127-422b-91ae-364da2661108https://access.redhat.com/security/cve/CVE-2023-4001Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://bugzilla.redhat.com/show_bug.cgi?id=2224951Issue Tracking, Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108https://dfir.ru/2024/01/15/cve-2023-4001-a-vulnerability-in-the-downstream-grub-boot-manager/Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/3OBADMKHQLJOBA32Q7XPNSYMVHVAFDCB/
af854a3a-2127-422b-91ae-364da2661108https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/CHLZQ47HM64NDOHMHYO7VIJFYD5ZPPYN/
af854a3a-2127-422b-91ae-364da2661108https://security.netapp.com/advisory/ntap-20240216-0006/
Impacted products
Vendor Product Version
gnu grub2 -
redhat enterprise_linux 9.0
fedoraproject fedora 38
fedoraproject fedora 39


To clipboard 

{
  "configurations": [
    {
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              "matchCriteriaId": "5104C160-A510-4AB3-82F8-F92E21B1B2D7",
              "vulnerable": true
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  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "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\u0027s version of grub2 and does not affect the upstream package."
    },
    {
      "lang": "es",
      "value": "Se encontr\u00f3 un fallo de omisi\u00f3n de autenticaci\u00f3n en GRUB debido a la forma en que GRUB usa el UUID de un dispositivo para buscar el archivo de configuraci\u00f3n que contiene el hash de contrase\u00f1a para la funci\u00f3n de protecci\u00f3n de contrase\u00f1a de GRUB. Un atacante capaz de conectar una unidad externa, como una memoria USB que contenga un sistema de archivos con un UUID duplicado (el mismo que en el sistema de archivos \"/boot/\") puede omitir la funci\u00f3n de protecci\u00f3n con contrase\u00f1a GRUB en los sistemas UEFI, que enumeran unidades extra\u00edbles. antes que los no removibles. Este problema se introdujo en un parche posterior en la versi\u00f3n de grub2 de Red Hat y no afecta el paquete anterior."
    }
  ],
  "id": "CVE-2023-4001",
  "lastModified": "2024-11-21T08:34:11.900",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "PHYSICAL",
          "availabilityImpact": "HIGH",
          "baseScore": 6.8,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
          "version": "3.1"
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        "type": "Secondary"
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          "baseScore": 6.8,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
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        "impactScore": 5.9,
        "source": "nvd@nist.gov",
        "type": "Primary"
      }
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  "published": "2024-01-15T11:15:08.270",
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    },
    {
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    },
    {
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    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/3OBADMKHQLJOBA32Q7XPNSYMVHVAFDCB/"
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    },
    {
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  "sourceIdentifier": "secalert@redhat.com",
  "vulnStatus": "Modified",
  "weaknesses": [
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      "description": [
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          "value": "CWE-290"
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      "source": "secalert@redhat.com",
      "type": "Secondary"
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      "source": "nvd@nist.gov",
      "type": "Primary"
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}


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