github - ghsa-cjc8-gmgf-qv2g

GHSA-CJC8-GMGF-QV2G

Vulnerability from github – Published: 2024-02-15 00:30 – Updated: 2024-07-01 00:33

Details

An insecure default to allow UEFI Shell in EDK2 was left enabled in Ubuntu's EDK2. This allows an OS-resident attacker to bypass Secure Boot.

Severity ?

6.7 (Medium)


                  
                    CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

Show details on source website

JSON

To clipboard

{
  "affected": [],
  "aliases": [
    "CVE-2023-48733"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-1188"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2024-02-14T22:15:47Z",
    "severity": "MODERATE"
  },
  "details": "An insecure default to allow UEFI Shell in EDK2 was left enabled in Ubuntu\u0027s EDK2. This allows an OS-resident attacker to bypass Secure Boot.",
  "id": "GHSA-cjc8-gmgf-qv2g",
  "modified": "2024-07-01T00:33:57Z",
  "published": "2024-02-15T00:30:30Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2023-48733"
    },
    {
      "type": "WEB",
      "url": "https://bugs.launchpad.net/ubuntu/+source/edk2/+bug/2040137"
    },
    {
      "type": "WEB",
      "url": "https://bugs.launchpad.net/ubuntu/+source/lxd/+bug/2040139"
    },
    {
      "type": "WEB",
      "url": "https://lists.debian.org/debian-lts-announce/2024/06/msg00028.html"
    },
    {
      "type": "WEB",
      "url": "https://www.openwall.com/lists/oss-security/2024/02/14/4"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ]
}

CVE-2023-48733 (GCVE-0-2023-48733)

Vulnerability from cvelistv5 – Published: 2024-02-14 21:54 – Updated: 2025-05-08 15:18

Summary

An insecure default to allow UEFI Shell in EDK2 was left enabled in Ubuntu's EDK2. This allows an OS-resident attacker to bypass Secure Boot.

Severity ?

6.7 (Medium)


                        
                          CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

CWE

CWE-1188 - Initialization of a Resource with an Insecure Default

Assigner

canonical

References

URL

Tags

	https://bugs.launchpad.net/ubuntu/+source/edk2/+b…	issue-tracking
	https://nvd.nist.gov/vuln/detail/CVE-2023-48733	issue-tracking
	https://www.openwall.com/lists/oss-security/2024/…	mailing-list
	https://bugs.launchpad.net/ubuntu/+source/lxd/+bu…	issue-tracking
	https://lists.debian.org/debian-lts-announce/2024…

Impacted products

	Vendor	Product	Version
	Canonical Ltd.	Ubuntu EDK II	Affected: 0 , < 2023.05-2ubuntu0.1 (semver)

Credits

Mate Kukri

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-02T21:37:54.670Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "tags": [
              "issue-tracking",
              "x_transferred"
            ],
            "url": "https://bugs.launchpad.net/ubuntu/+source/edk2/+bug/2040137"
          },
          {
            "tags": [
              "issue-tracking",
              "x_transferred"
            ],
            "url": "https://nvd.nist.gov/vuln/detail/CVE-2023-48733"
          },
          {
            "tags": [
              "mailing-list",
              "x_transferred"
            ],
            "url": "https://www.openwall.com/lists/oss-security/2024/02/14/4"
          },
          {
            "tags": [
              "issue-tracking",
              "x_transferred"
            ],
            "url": "https://bugs.launchpad.net/ubuntu/+source/lxd/+bug/2040139"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://lists.debian.org/debian-lts-announce/2024/06/msg00028.html"
          }
        ],
        "title": "CVE Program Container"
      },
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2023-48733",
                "options": [
                  {
                    "Exploitation": "poc"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "total"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2024-02-15T16:17:59.516818Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "problemTypes": [
          {
            "descriptions": [
              {
                "cweId": "CWE-1188",
                "description": "CWE-1188 Initialization of a Resource with an Insecure Default",
                "lang": "en",
                "type": "CWE"
              }
            ]
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2025-05-08T15:18:23.545Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "packageName": "edk2",
          "platforms": [
            "Linux"
          ],
          "product": "Ubuntu EDK II",
          "vendor": "Canonical Ltd.",
          "versions": [
            {
              "lessThan": "2023.05-2ubuntu0.1",
              "status": "affected",
              "version": "0",
              "versionType": "semver"
            }
          ]
        }
      ],
      "credits": [
        {
          "lang": "en",
          "type": "finder",
          "value": "Mate Kukri"
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "An insecure default to allow UEFI Shell in EDK2 was left enabled in Ubuntu\u0027s EDK2. This allows an OS-resident attacker to bypass Secure Boot."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "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"
          },
          "format": "CVSS"
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2024-06-30T23:06:04.090Z",
        "orgId": "cc1ad9ee-3454-478d-9317-d3e869d708bc",
        "shortName": "canonical"
      },
      "references": [
        {
          "tags": [
            "issue-tracking"
          ],
          "url": "https://bugs.launchpad.net/ubuntu/+source/edk2/+bug/2040137"
        },
        {
          "tags": [
            "issue-tracking"
          ],
          "url": "https://nvd.nist.gov/vuln/detail/CVE-2023-48733"
        },
        {
          "tags": [
            "mailing-list"
          ],
          "url": "https://www.openwall.com/lists/oss-security/2024/02/14/4"
        },
        {
          "tags": [
            "issue-tracking"
          ],
          "url": "https://bugs.launchpad.net/ubuntu/+source/lxd/+bug/2040139"
        },
        {
          "url": "https://lists.debian.org/debian-lts-announce/2024/06/msg00028.html"
        }
      ]
    }
  },
  "cveMetadata": {
    "assignerOrgId": "cc1ad9ee-3454-478d-9317-d3e869d708bc",
    "assignerShortName": "canonical",
    "cveId": "CVE-2023-48733",
    "datePublished": "2024-02-14T21:54:08.333Z",
    "dateReserved": "2023-12-05T19:36:34.710Z",
    "dateUpdated": "2025-05-08T15:18:23.545Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}

Sightings

Author	Source	Type	Date

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

Action not permitted

GHSA-CJC8-GMGF-QV2G

CVE-2023-48733 (GCVE-0-2023-48733)

Tags

Sightings

Nomenclature