GSD-2023-49721

Vulnerability from gsd - Updated: 2023-12-13 01:20
Details
An insecure default to allow UEFI Shell in EDK2 was left enabled in LXD. This allows an OS-resident attacker to bypass Secure Boot.
Aliases
Aliases
CVE-2023-49721
To clipboard 

{
  "GSD": {
    "alias": "CVE-2023-49721",
    "id": "GSD-2023-49721"
  },
  "gsd": {
    "metadata": {
      "exploitCode": "unknown",
      "remediation": "unknown",
      "reportConfidence": "confirmed",
      "type": "vulnerability"
    },
    "osvSchema": {
      "aliases": [
        "CVE-2023-49721"
      ],
      "details": "An insecure default to allow UEFI Shell in EDK2 was left enabled in LXD. This allows an OS-resident attacker to bypass Secure Boot.",
      "id": "GSD-2023-49721",
      "modified": "2023-12-13T01:20:34.900913Z",
      "schema_version": "1.4.0"
    }
  },
  "namespaces": {
    "cve.org": {
      "CVE_data_meta": {
        "ASSIGNER": "security@ubuntu.com",
        "ID": "CVE-2023-49721",
        "STATE": "PUBLIC"
      },
      "affects": {
        "vendor": {
          "vendor_data": [
            {
              "product": {
                "product_data": [
                  {
                    "product_name": "LXD",
                    "version": {
                      "version_data": [
                        {
                          "version_affected": "=",
                          "version_value": "0"
                        }
                      ]
                    }
                  }
                ]
              },
              "vendor_name": "Canonical Ltd."
            }
          ]
        }
      },
      "credits": [
        {
          "lang": "en",
          "value": "Mate Kukri"
        }
      ],
      "data_format": "MITRE",
      "data_type": "CVE",
      "data_version": "4.0",
      "description": {
        "description_data": [
          {
            "lang": "eng",
            "value": "An insecure default to allow UEFI Shell in EDK2 was left enabled in LXD. This allows an OS-resident attacker to bypass Secure Boot."
          }
        ]
      },
      "impact": {
        "cvss": [
          {
            "attackComplexity": "LOW",
            "attackVector": "LOCAL",
            "availabilityImpact": "HIGH",
            "baseScore": 6.7,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "HIGH",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H",
            "version": "3.1"
          }
        ]
      },
      "problemtype": {
        "problemtype_data": [
          {
            "description": [
              {
                "lang": "eng",
                "value": "n/a"
              }
            ]
          }
        ]
      },
      "references": {
        "reference_data": [
          {
            "name": "https://bugs.launchpad.net/ubuntu/+source/lxd/+bug/2040139",
            "refsource": "MISC",
            "url": "https://bugs.launchpad.net/ubuntu/+source/lxd/+bug/2040139"
          },
          {
            "name": "https://nvd.nist.gov/vuln/detail/CVE-2023-48733",
            "refsource": "MISC",
            "url": "https://nvd.nist.gov/vuln/detail/CVE-2023-48733"
          },
          {
            "name": "https://www.openwall.com/lists/oss-security/2024/02/14/4",
            "refsource": "MISC",
            "url": "https://www.openwall.com/lists/oss-security/2024/02/14/4"
          },
          {
            "name": "https://bugs.launchpad.net/ubuntu/+source/edk2/+bug/2040137",
            "refsource": "MISC",
            "url": "https://bugs.launchpad.net/ubuntu/+source/edk2/+bug/2040137"
          }
        ]
      }
    },
    "nvd.nist.gov": {
      "cve": {
        "descriptions": [
          {
            "lang": "en",
            "value": "An insecure default to allow UEFI Shell in EDK2 was left enabled in LXD. This allows an OS-resident attacker to bypass Secure Boot."
          },
          {
            "lang": "es",
            "value": "Un valor predeterminado inseguro para permitir UEFI Shell en EDK2 se dej\u00f3 habilitado en LXD. Esto permite que un atacante residente en el sistema operativo omita el arranque seguro."
          }
        ],
        "id": "CVE-2023-49721",
        "lastModified": "2024-02-15T06:23:39.303",
        "metrics": {
          "cvssMetricV31": [
            {
              "cvssData": {
                "attackComplexity": "LOW",
                "attackVector": "LOCAL",
                "availabilityImpact": "HIGH",
                "baseScore": 6.7,
                "baseSeverity": "MEDIUM",
                "confidentialityImpact": "HIGH",
                "integrityImpact": "HIGH",
                "privilegesRequired": "HIGH",
                "scope": "UNCHANGED",
                "userInteraction": "NONE",
                "vectorString": "CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H",
                "version": "3.1"
              },
              "exploitabilityScore": 0.8,
              "impactScore": 5.9,
              "source": "security@ubuntu.com",
              "type": "Secondary"
            }
          ]
        },
        "published": "2024-02-14T22:15:47.530",
        "references": [
          {
            "source": "security@ubuntu.com",
            "url": "https://bugs.launchpad.net/ubuntu/+source/edk2/+bug/2040137"
          },
          {
            "source": "security@ubuntu.com",
            "url": "https://bugs.launchpad.net/ubuntu/+source/lxd/+bug/2040139"
          },
          {
            "source": "security@ubuntu.com",
            "url": "https://nvd.nist.gov/vuln/detail/CVE-2023-48733"
          },
          {
            "source": "security@ubuntu.com",
            "url": "https://www.openwall.com/lists/oss-security/2024/02/14/4"
          }
        ],
        "sourceIdentifier": "security@ubuntu.com",
        "vulnStatus": "Awaiting Analysis"
      }
    }
  }
}


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