ubuntu-cve-2022-41882
Vulnerability from osv_ubuntu
Published
2022-11-11 19:15
Modified
2026-04-22 07:41
Summary
Details

The Nextcloud Desktop Client is a tool to synchronize files from Nextcloud Server with your computer. In version 3.6.0, if a user received a malicious file share and has it synced locally or the virtual filesystem enabled and clicked a nc://open/ link it will open the default editor for the file type of the shared file, which on Windows can also sometimes mean that a file depending on the type, e.g. "vbs", is being executed. It is recommended that the Nextcloud Desktop client is upgraded to version 3.6.1. As a workaround, users can block the Nextcloud Desktop client 3.6.0 by setting the minimum.supported.desktop.version system config to 3.6.1 on the server, so new files designed to use this attack vector are not downloaded anymore. Already existing files can still be used. Another workaround would be to enforce shares to be accepted by setting the sharing.force_share_accept system config to true on the server, so new files designed to use this attack vector are not downloaded anymore. Already existing shares can still be abused.

Severity
6.6 (Medium)
CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:C/C:L/I:H/A:L
7.8 (High)
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
N/A (UNKNOWN)
medium
References
To clipboard 

{
  "affected": [
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "caja-nextcloud",
            "binary_version": "2.6.2-1build1"
          },
          {
            "binary_name": "dolphin-nextcloud",
            "binary_version": "2.6.2-1build1"
          },
          {
            "binary_name": "libnextcloudsync0",
            "binary_version": "2.6.2-1build1"
          },
          {
            "binary_name": "nautilus-nextcloud",
            "binary_version": "2.6.2-1build1"
          },
          {
            "binary_name": "nemo-nextcloud",
            "binary_version": "2.6.2-1build1"
          },
          {
            "binary_name": "nextcloud-desktop",
            "binary_version": "2.6.2-1build1"
          },
          {
            "binary_name": "nextcloud-desktop-cmd",
            "binary_version": "2.6.2-1build1"
          },
          {
            "binary_name": "nextcloud-desktop-common",
            "binary_version": "2.6.2-1build1"
          },
          {
            "binary_name": "nextcloud-desktop-l10n",
            "binary_version": "2.6.2-1build1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:20.04:LTS",
        "name": "nextcloud-desktop",
        "purl": "pkg:deb/ubuntu/nextcloud-desktop@2.6.2-1build1?arch=source\u0026distro=focal"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "2.5.3-1",
        "2.6.0-1",
        "2.6.1-1",
        "2.6.1-2",
        "2.6.2-1",
        "2.6.2-1build1"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "caja-nextcloud",
            "binary_version": "3.4.2-1ubuntu1"
          },
          {
            "binary_name": "dolphin-nextcloud",
            "binary_version": "3.4.2-1ubuntu1"
          },
          {
            "binary_name": "libnextcloudsync0",
            "binary_version": "3.4.2-1ubuntu1"
          },
          {
            "binary_name": "nautilus-nextcloud",
            "binary_version": "3.4.2-1ubuntu1"
          },
          {
            "binary_name": "nemo-nextcloud",
            "binary_version": "3.4.2-1ubuntu1"
          },
          {
            "binary_name": "nextcloud-desktop",
            "binary_version": "3.4.2-1ubuntu1"
          },
          {
            "binary_name": "nextcloud-desktop-cmd",
            "binary_version": "3.4.2-1ubuntu1"
          },
          {
            "binary_name": "nextcloud-desktop-common",
            "binary_version": "3.4.2-1ubuntu1"
          },
          {
            "binary_name": "nextcloud-desktop-l10n",
            "binary_version": "3.4.2-1ubuntu1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:22.04:LTS",
        "name": "nextcloud-desktop",
        "purl": "pkg:deb/ubuntu/nextcloud-desktop@3.4.2-1ubuntu1?arch=source\u0026distro=jammy"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "3.2.3-0ubuntu1",
        "3.3.5-1",
        "3.3.5-1ubuntu1",
        "3.4.2-1",
        "3.4.2-1ubuntu1"
      ]
    }
  ],
  "aliases": [],
  "details": "The Nextcloud Desktop Client is a tool to synchronize files from Nextcloud Server with your computer. In version 3.6.0, if a user received a malicious file share and has it synced locally or the virtual filesystem enabled and clicked a nc://open/ link it will open the default editor for the file type of the shared file, which on Windows can also sometimes mean that a file depending on the type, e.g. \"vbs\", is being executed. It is recommended that the Nextcloud Desktop client is upgraded to version 3.6.1. As a workaround, users can block the Nextcloud Desktop client 3.6.0 by setting the `minimum.supported.desktop.version` system config to `3.6.1` on the server, so new files designed to use this attack vector are not downloaded anymore. Already existing files can still be used. Another workaround would be to enforce shares to be accepted by setting the `sharing.force_share_accept` system config to `true` on the server, so new files designed to use this attack vector are not downloaded anymore. Already existing shares can still be abused.",
  "id": "UBUNTU-CVE-2022-41882",
  "modified": "2026-04-22T07:41:42Z",
  "published": "2022-11-11T19:15:00Z",
  "references": [
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2022-41882"
    },
    {
      "type": "REPORT",
      "url": "https://github.com/nextcloud/security-advisories/security/advisories/GHSA-3w86-rm38-8w63"
    },
    {
      "type": "REPORT",
      "url": "https://github.com/nextcloud/desktop/pull/5039"
    },
    {
      "type": "REPORT",
      "url": "https://github.com/nextcloud/server/pull/34559"
    },
    {
      "type": "REPORT",
      "url": "https://www.cve.org/CVERecord?id=CVE-2022-41882"
    }
  ],
  "related": [],
  "schema_version": "1.7.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:C/C:L/I:H/A:L",
      "type": "CVSS_V3"
    },
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    },
    {
      "score": "medium",
      "type": "Ubuntu"
    }
  ],
  "upstream": [
    "CVE-2022-41882"
  ]
}



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Sightings

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  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
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  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


Detection rules are retrieved from Rulezet.