WID-SEC-W-2023-3166

Vulnerability from csaf_certbund - Published: 2023-12-17 23:00 - Updated: 2023-12-17 23:00
Summary
Nextcloud: Mehrere Schwachstellen ermöglichen Umgehen von Sicherheitsvorkehrungen
Severity
Mittel
Notes
Das BSI ist als Anbieter für die eigenen, zur Nutzung bereitgestellten Inhalte nach den allgemeinen Gesetzen verantwortlich. Nutzerinnen und Nutzer sind jedoch dafür verantwortlich, die Verwendung und/oder die Umsetzung der mit den Inhalten bereitgestellten Informationen sorgfältig im Einzelfall zu prüfen.
Produktbeschreibung: Nextcloud ist eine "on-premise" Plattform für Dateifreigabe und Zusammenarbeit.
Angriff: Ein Angreifer kann mehrere Schwachstellen in Nextcloud, der Calendar App und dem Files iOS Paket ausnutzen, um Sicherheitsvorkehrungen zu umgehen.
Betroffene Betriebssysteme: - UNIX - Linux - Windows - Sonstiges
CVE-2023-48308
CVE-2023-49790
CVE-2023-49791
CVE-2023-49792
References
To clipboard 

{
  "document": {
    "aggregate_severity": {
      "text": "mittel"
    },
    "category": "csaf_base",
    "csaf_version": "2.0",
    "distribution": {
      "tlp": {
        "label": "WHITE",
        "url": "https://www.first.org/tlp/"
      }
    },
    "lang": "de-DE",
    "notes": [
      {
        "category": "legal_disclaimer",
        "text": "Das BSI ist als Anbieter f\u00fcr die eigenen, zur Nutzung bereitgestellten Inhalte nach den allgemeinen Gesetzen verantwortlich. Nutzerinnen und Nutzer sind jedoch daf\u00fcr verantwortlich, die Verwendung und/oder die Umsetzung der mit den Inhalten bereitgestellten Informationen sorgf\u00e4ltig im Einzelfall zu pr\u00fcfen."
      },
      {
        "category": "description",
        "text": "Nextcloud ist eine \"on-premise\" Plattform f\u00fcr Dateifreigabe und Zusammenarbeit.",
        "title": "Produktbeschreibung"
      },
      {
        "category": "summary",
        "text": "Ein Angreifer kann mehrere Schwachstellen in Nextcloud, der Calendar App und dem Files iOS Paket ausnutzen, um Sicherheitsvorkehrungen zu umgehen.",
        "title": "Angriff"
      },
      {
        "category": "general",
        "text": "- UNIX\n- Linux\n- Windows\n- Sonstiges",
        "title": "Betroffene Betriebssysteme"
      }
    ],
    "publisher": {
      "category": "other",
      "contact_details": "csaf-provider@cert-bund.de",
      "name": "Bundesamt f\u00fcr Sicherheit in der Informationstechnik",
      "namespace": "https://www.bsi.bund.de"
    },
    "references": [
      {
        "category": "self",
        "summary": "WID-SEC-W-2023-3166 - CSAF Version",
        "url": "https://wid.cert-bund.de/.well-known/csaf/white/2023/wid-sec-w-2023-3166.json"
      },
      {
        "category": "self",
        "summary": "WID-SEC-2023-3166 - Portal Version",
        "url": "https://wid.cert-bund.de/portal/wid/securityadvisory?name=WID-SEC-2023-3166"
      },
      {
        "category": "external",
        "summary": "Nextcloud Security Advisory vom 2023-12-17",
        "url": "https://github.com/nextcloud/security-advisories/security/advisories/GHSA-3f8p-6qww-2prr"
      },
      {
        "category": "external",
        "summary": "Nextcloud Security Advisory vom 2023-12-17",
        "url": "https://github.com/nextcloud/security-advisories/security/advisories/GHSA-5j2p-q736-hw98"
      },
      {
        "category": "external",
        "summary": "Nextcloud Security Advisory vom 2023-12-17",
        "url": "https://github.com/nextcloud/security-advisories/security/advisories/GHSA-fv3c-qvjr-5rv8"
      },
      {
        "category": "external",
        "summary": "Nextcloud Security Advisory vom 2023-12-17",
        "url": "https://github.com/nextcloud/security-advisories/security/advisories/GHSA-j8g7-88vv-rggv"
      }
    ],
    "source_lang": "en-US",
    "title": "Nextcloud: Mehrere Schwachstellen erm\u00f6glichen Umgehen von Sicherheitsvorkehrungen",
    "tracking": {
      "current_release_date": "2023-12-17T23:00:00.000+00:00",
      "generator": {
        "date": "2026-07-16T16:56:47.112+00:00",
        "engine": {
          "name": "BSI-WID",
          "version": "1.6.0"
        }
      },
      "id": "WID-SEC-W-2023-3166",
      "initial_release_date": "2023-12-17T23:00:00.000+00:00",
      "revision_history": [
        {
          "date": "2023-12-17T23:00:00.000+00:00",
          "number": "1",
          "summary": "Initiale Fassung"
        }
      ],
      "status": "final",
      "version": "1"
    }
  },
  "product_tree": {
    "branches": [
      {
        "branches": [
          {
            "branches": [
              {
                "category": "product_name",
                "name": "Nextcloud Nextcloud \u003c 26.0.9",
                "product": {
                  "name": "Nextcloud Nextcloud \u003c 26.0.9",
                  "product_id": "T031732",
                  "product_identification_helper": {
                    "cpe": "cpe:/a:nextcloud:nextcloud:26.0.9"
                  }
                }
              },
              {
                "category": "product_name",
                "name": "Nextcloud Nextcloud \u003c 27.1.4",
                "product": {
                  "name": "Nextcloud Nextcloud \u003c 27.1.4",
                  "product_id": "T031734",
                  "product_identification_helper": {
                    "cpe": "cpe:/a:nextcloud:nextcloud:27.1.4"
                  }
                }
              },
              {
                "category": "product_name",
                "name": "Nextcloud Nextcloud Enterprise \u003c 23.0.12.13",
                "product": {
                  "name": "Nextcloud Nextcloud Enterprise \u003c 23.0.12.13",
                  "product_id": "T031735",
                  "product_identification_helper": {
                    "cpe": "cpe:/a:nextcloud:nextcloud:enterprise__23.0.12.13"
                  }
                }
              },
              {
                "category": "product_name",
                "name": "Nextcloud Nextcloud Enterprise \u003c 24.0.12.9",
                "product": {
                  "name": "Nextcloud Nextcloud Enterprise \u003c 24.0.12.9",
                  "product_id": "T031736",
                  "product_identification_helper": {
                    "cpe": "cpe:/a:nextcloud:nextcloud:enterprise__24.0.12.9"
                  }
                }
              },
              {
                "category": "product_name",
                "name": "Nextcloud Nextcloud Enterprise \u003c 25.0.13.4",
                "product": {
                  "name": "Nextcloud Nextcloud Enterprise \u003c 25.0.13.4",
                  "product_id": "T031737",
                  "product_identification_helper": {
                    "cpe": "cpe:/a:nextcloud:nextcloud:enterprise__25.0.13.4"
                  }
                }
              },
              {
                "category": "product_name",
                "name": "Nextcloud Nextcloud Enterprise \u003c 26.0.9",
                "product": {
                  "name": "Nextcloud Nextcloud Enterprise \u003c 26.0.9",
                  "product_id": "T031738",
                  "product_identification_helper": {
                    "cpe": "cpe:/a:nextcloud:nextcloud:enterprise__26.0.9"
                  }
                }
              },
              {
                "category": "product_name",
                "name": "Nextcloud Nextcloud Enterprise \u003c 27.1.4",
                "product": {
                  "name": "Nextcloud Nextcloud Enterprise \u003c 27.1.4",
                  "product_id": "T031739",
                  "product_identification_helper": {
                    "cpe": "cpe:/a:nextcloud:nextcloud:enterprise__27.1.4"
                  }
                }
              },
              {
                "category": "product_name",
                "name": "Nextcloud Nextcloud Calendar \u003c 4.5.3",
                "product": {
                  "name": "Nextcloud Nextcloud Calendar \u003c 4.5.3",
                  "product_id": "T031740",
                  "product_identification_helper": {
                    "cpe": "cpe:/a:nextcloud:nextcloud:calendar__4.5.3"
                  }
                }
              },
              {
                "category": "product_name",
                "name": "Nextcloud Nextcloud Files iOS \u003c 4.9.2",
                "product": {
                  "name": "Nextcloud Nextcloud Files iOS \u003c 4.9.2",
                  "product_id": "T031741",
                  "product_identification_helper": {
                    "cpe": "cpe:/a:nextcloud:nextcloud:files_ios__4.9.2"
                  }
                }
              }
            ],
            "category": "product_name",
            "name": "Nextcloud"
          }
        ],
        "category": "vendor",
        "name": "Nextcloud"
      }
    ]
  },
  "vulnerabilities": [
    {
      "cve": "CVE-2023-48308",
      "release_date": "2023-12-17T23:00:00.000+00:00",
      "title": "CVE-2023-48308"
    },
    {
      "cve": "CVE-2023-49790",
      "release_date": "2023-12-17T23:00:00.000+00:00",
      "title": "CVE-2023-49790"
    },
    {
      "cve": "CVE-2023-49791",
      "release_date": "2023-12-17T23:00:00.000+00:00",
      "title": "CVE-2023-49791"
    },
    {
      "cve": "CVE-2023-49792",
      "release_date": "2023-12-17T23:00:00.000+00:00",
      "title": "CVE-2023-49792"
    }
  ]
}



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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

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Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
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  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.