certfr_avis - certfr-2023-avi-0485

CERTFR-2023-AVI-0485

Vulnerability from certfr_avis - Published: - Updated:

De multiples vulnérabilités ont été découvertes dans les produits Nextcloud. Elles permettent à un attaquant de provoquer une atteinte à la confidentialité des données et une atteinte à l'intégrité des données.

Solution

Se référer au bulletin de sécurité de l'éditeur pour l'obtention des correctifs (cf. section Documentation).

None

Impacted products

Vendor	Product	Description
Nextcloud	N/A	Nextcloud Enterprise Server versions 22.x antérieures à 22.2.10.12
Nextcloud	N/A	Nextcloud Enterprise Server versions 24.x antérieures à 24.0.12.2
Nextcloud	N/A	Nextcloud Enterprise Server versions 23.x antérieures à 23.0.12.7
Nextcloud	N/A	Nextcloud Enterprise Server versions 25.0.x antérieures à 25.0.7
Nextcloud	N/A	Nextcloud Server versions 26.0.x antérieures à 26.0.2
Nextcloud	N/A	Nextcloud Enterprise Server versions 26.0.x antérieures à 26.0.2
Nextcloud	N/A	Nextcloud Enterprise Server versions 16.x à 19.x antérieures à 19.0.13.9
Nextcloud	N/A	Nextcloud Enterprise Server versions 21.x antérieures à 21.0.9.12
Nextcloud	N/A	Nextcloud Server versions 25.0.x antérieures à 25.0.7
Nextcloud	N/A	Nextcloud Enterprise Server versions 20.x antérieures à 20.0.14.14

References

Title

Publication Time

Tags

Bulletin de sécurité Nextcloud GHSA-h7f7-535f-7q87 du 22 juin 2023	None	vendor-advisory
Bulletin de sécurité Nextcloud GHSA-637g-xp2c-qh5h du 22 juin 2023	None	vendor-advisory

Show details on source website

JSON

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{
  "$ref": "https://www.cert.ssi.gouv.fr/openapi.json",
  "affected_systems": [
    {
      "description": "Nextcloud Enterprise Server versions 22.x ant\u00e9rieures \u00e0 22.2.10.12",
      "product": {
        "name": "N/A",
        "vendor": {
          "name": "Nextcloud",
          "scada": false
        }
      }
    },
    {
      "description": "Nextcloud Enterprise Server versions 24.x ant\u00e9rieures \u00e0 24.0.12.2",
      "product": {
        "name": "N/A",
        "vendor": {
          "name": "Nextcloud",
          "scada": false
        }
      }
    },
    {
      "description": "Nextcloud Enterprise Server versions 23.x ant\u00e9rieures \u00e0 23.0.12.7",
      "product": {
        "name": "N/A",
        "vendor": {
          "name": "Nextcloud",
          "scada": false
        }
      }
    },
    {
      "description": "Nextcloud Enterprise Server versions 25.0.x ant\u00e9rieures \u00e0 25.0.7",
      "product": {
        "name": "N/A",
        "vendor": {
          "name": "Nextcloud",
          "scada": false
        }
      }
    },
    {
      "description": "Nextcloud Server versions 26.0.x ant\u00e9rieures \u00e0 26.0.2",
      "product": {
        "name": "N/A",
        "vendor": {
          "name": "Nextcloud",
          "scada": false
        }
      }
    },
    {
      "description": "Nextcloud Enterprise Server versions 26.0.x ant\u00e9rieures \u00e0 26.0.2",
      "product": {
        "name": "N/A",
        "vendor": {
          "name": "Nextcloud",
          "scada": false
        }
      }
    },
    {
      "description": "Nextcloud Enterprise Server versions 16.x \u00e0 19.x ant\u00e9rieures \u00e0 19.0.13.9",
      "product": {
        "name": "N/A",
        "vendor": {
          "name": "Nextcloud",
          "scada": false
        }
      }
    },
    {
      "description": "Nextcloud Enterprise Server versions 21.x ant\u00e9rieures \u00e0 21.0.9.12",
      "product": {
        "name": "N/A",
        "vendor": {
          "name": "Nextcloud",
          "scada": false
        }
      }
    },
    {
      "description": "Nextcloud Server versions 25.0.x ant\u00e9rieures \u00e0 25.0.7",
      "product": {
        "name": "N/A",
        "vendor": {
          "name": "Nextcloud",
          "scada": false
        }
      }
    },
    {
      "description": "Nextcloud Enterprise Server versions 20.x ant\u00e9rieures \u00e0 20.0.14.14",
      "product": {
        "name": "N/A",
        "vendor": {
          "name": "Nextcloud",
          "scada": false
        }
      }
    }
  ],
  "affected_systems_content": null,
  "content": "## Solution\n\nSe r\u00e9f\u00e9rer au bulletin de s\u00e9curit\u00e9 de l\u0027\u00e9diteur pour l\u0027obtention des\ncorrectifs (cf. section Documentation).\n",
  "cves": [
    {
      "name": "CVE-2023-35927",
      "url": "https://www.cve.org/CVERecord?id=CVE-2023-35927"
    },
    {
      "name": "CVE-2023-35928",
      "url": "https://www.cve.org/CVERecord?id=CVE-2023-35928"
    }
  ],
  "links": [],
  "reference": "CERTFR-2023-AVI-0485",
  "revisions": [
    {
      "description": "Version initiale",
      "revision_date": "2023-06-23T00:00:00.000000"
    }
  ],
  "risks": [
    {
      "description": "Atteinte \u00e0 l\u0027int\u00e9grit\u00e9 des donn\u00e9es"
    },
    {
      "description": "Atteinte \u00e0 la confidentialit\u00e9 des donn\u00e9es"
    }
  ],
  "summary": "De multiples vuln\u00e9rabilit\u00e9s ont \u00e9t\u00e9 d\u00e9couvertes dans \u003cspan\nclass=\"textit\"\u003eles produits Nextcloud\u003c/span\u003e. Elles permettent \u00e0 un\nattaquant de provoquer une atteinte \u00e0 la confidentialit\u00e9 des donn\u00e9es et\nune atteinte \u00e0 l\u0027int\u00e9grit\u00e9 des donn\u00e9es.\n",
  "title": "Multiples vuln\u00e9rabilit\u00e9s dans les produits Nextcloud",
  "vendor_advisories": [
    {
      "published_at": null,
      "title": "Bulletin de s\u00e9curit\u00e9 Nextcloud GHSA-h7f7-535f-7q87 du 22 juin 2023",
      "url": "https://github.com/nextcloud/security-advisories/security/advisories/GHSA-h7f7-535f-7q87"
    },
    {
      "published_at": null,
      "title": "Bulletin de s\u00e9curit\u00e9 Nextcloud GHSA-637g-xp2c-qh5h du 22 juin 2023",
      "url": "https://github.com/nextcloud/security-advisories/security/advisories/GHSA-637g-xp2c-qh5h"
    }
  ]
}

CVE-2023-35927 (GCVE-0-2023-35927)

Vulnerability from cvelistv5 – Published: 2023-06-23 20:53 – Updated: 2024-11-07 18:29

Summary

NextCloud Server and NextCloud Enterprise Server provide file storage for Nextcloud, a self-hosted productivity platform. In NextCloud Server versions 25.0.0 until 25.0.7 and 26.0.0 until 26.0.2 and Nextcloud Enterprise Server versions 21.0.0 until 21.0.9.12, 22.0.0 until 22.2.10.12, 23.0.0 until 23.0.12.7, 24.0.0 until 24.0.12.2, 25.0.0 until 25.0.7, and 26.0.0 until 26.0.2, when two server are registered as trusted servers for each other and successfully exchanged the share secrets, the malicious server could modify or delete VCards in the system addressbook on the origin server. This would impact the available and shown information in certain places, such as the user search and avatar menu. If a manipulated user modifies their own data in the personal settings the entry is fixed again. Nextcloud Server n 25.0.7 and 26.0.2 and Nextcloud Enterprise Server 21.0.9.12, 22.2.10.12, 23.0.12.7, 24.0.12.2, 25.0.7, and 26.0.2 contain a patch for this issue. A workaround is available. Remove all trusted servers in the "Administration" > "Sharing" settings `…/index.php/settings/admin/sharing`. Afterwards, trigger a recreation of the local system addressbook with the following `occ dav:sync-system-addressbook`.

Severity ?

7.6 (High)


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

CWE

CWE-284 - Improper Access Control

Assigner

GitHub_M

References

URL

Tags

	https://github.com/nextcloud/security-advisories/…	x_refsource_CONFIRM
	https://github.com/nextcloud/server/pull/38247	x_refsource_MISC
	https://hackerone.com/reports/1976754	x_refsource_MISC

Impacted products

	Vendor	Product	Version
	nextcloud	security-advisories	Affected: Nextcloud Server >= 25.0.0, < 25.0.7 Affected: Nextcloud Server >= 26.0.0, < 26.0.2 Affected: Nextcloud Enterprise Server >= 25.0.0, < 25.0.7 Affected: Nextcloud Enterprise Server >= 26.0.0, < 26.0.2 Affected: Nextcloud Enterprise Server >= 21.0.0, < 21.0.9.12 Affected: Nextcloud Enterprise Server >= 22.0.0, < 22.2.10.12 Affected: Nextcloud Enterprise Server >= 23.0.0, < 23.0.12.7 Affected: Nextcloud Enterprise Server >= 24.0.0, < 24.0.12.2

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-02T16:37:40.519Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "name": "https://github.com/nextcloud/security-advisories/security/advisories/GHSA-h7f7-535f-7q87",
            "tags": [
              "x_refsource_CONFIRM",
              "x_transferred"
            ],
            "url": "https://github.com/nextcloud/security-advisories/security/advisories/GHSA-h7f7-535f-7q87"
          },
          {
            "name": "https://github.com/nextcloud/server/pull/38247",
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://github.com/nextcloud/server/pull/38247"
          },
          {
            "name": "https://hackerone.com/reports/1976754",
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://hackerone.com/reports/1976754"
          }
        ],
        "title": "CVE Program Container"
      },
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2023-35927",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2024-11-07T18:29:27.883306Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2024-11-07T18:29:35.811Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "security-advisories",
          "vendor": "nextcloud",
          "versions": [
            {
              "status": "affected",
              "version": "Nextcloud Server \u003e= 25.0.0, \u003c 25.0.7"
            },
            {
              "status": "affected",
              "version": "Nextcloud Server \u003e= 26.0.0, \u003c 26.0.2"
            },
            {
              "status": "affected",
              "version": "Nextcloud Enterprise Server \u003e= 25.0.0, \u003c 25.0.7"
            },
            {
              "status": "affected",
              "version": "Nextcloud Enterprise Server \u003e= 26.0.0, \u003c 26.0.2"
            },
            {
              "status": "affected",
              "version": "Nextcloud Enterprise Server \u003e= 21.0.0, \u003c 21.0.9.12"
            },
            {
              "status": "affected",
              "version": "Nextcloud Enterprise Server \u003e= 22.0.0, \u003c 22.2.10.12"
            },
            {
              "status": "affected",
              "version": "Nextcloud Enterprise Server \u003e= 23.0.0, \u003c 23.0.12.7"
            },
            {
              "status": "affected",
              "version": "Nextcloud Enterprise Server \u003e= 24.0.0, \u003c 24.0.12.2"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "NextCloud Server and NextCloud Enterprise Server provide file storage for Nextcloud, a self-hosted productivity platform. In NextCloud Server versions 25.0.0 until 25.0.7 and 26.0.0 until 26.0.2 and Nextcloud Enterprise Server versions 21.0.0 until 21.0.9.12, 22.0.0 until 22.2.10.12, 23.0.0 until 23.0.12.7, 24.0.0 until 24.0.12.2, 25.0.0 until 25.0.7, and 26.0.0 until 26.0.2, when two server are registered as trusted servers for each other and successfully exchanged the share secrets, the malicious server could modify or delete VCards in the system addressbook on the origin server. This would impact the available and shown information in certain places, such as the user search and avatar menu. If a manipulated user modifies their own data in the personal settings the entry is fixed again.\n\nNextcloud Server n 25.0.7 and 26.0.2 and Nextcloud Enterprise Server 21.0.9.12, 22.2.10.12, 23.0.12.7, 24.0.12.2, 25.0.7, and 26.0.2 contain a patch for this issue. A workaround is available. Remove all trusted servers in the \"Administration\" \u003e \"Sharing\" settings `\u2026/index.php/settings/admin/sharing`. Afterwards, trigger a recreation of the local system addressbook with the following `occ dav:sync-system-addressbook`."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "LOW",
            "baseScore": 7.6,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "NONE",
            "integrityImpact": "HIGH",
            "privilegesRequired": "LOW",
            "scope": "CHANGED",
            "userInteraction": "REQUIRED",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:N/I:H/A:L",
            "version": "3.1"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-284",
              "description": "CWE-284: Improper Access Control",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2023-06-23T20:53:33.688Z",
        "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "shortName": "GitHub_M"
      },
      "references": [
        {
          "name": "https://github.com/nextcloud/security-advisories/security/advisories/GHSA-h7f7-535f-7q87",
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://github.com/nextcloud/security-advisories/security/advisories/GHSA-h7f7-535f-7q87"
        },
        {
          "name": "https://github.com/nextcloud/server/pull/38247",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/nextcloud/server/pull/38247"
        },
        {
          "name": "https://hackerone.com/reports/1976754",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://hackerone.com/reports/1976754"
        }
      ],
      "source": {
        "advisory": "GHSA-h7f7-535f-7q87",
        "discovery": "UNKNOWN"
      },
      "title": "Nextcloud system addressbooks can be modified by malicious trusted server"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
    "assignerShortName": "GitHub_M",
    "cveId": "CVE-2023-35927",
    "datePublished": "2023-06-23T20:53:33.688Z",
    "dateReserved": "2023-06-20T14:02:45.593Z",
    "dateUpdated": "2024-11-07T18:29:35.811Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}

CVE-2023-35928 (GCVE-0-2023-35928)

Vulnerability from cvelistv5 – Published: 2023-06-23 20:58 – Updated: 2024-12-05 16:18

Summary

Nextcloud Server is a space for data storage on Nextcloud, a self-hosted productivity playform. In NextCloud Server versions 25.0.0 until 25.0.7 and 26.0.0 until 26.0.2 and Nextcloud Enterprise Server versions 19.0.0 until 19.0.13.9, 20.0.0 until 20.0.14.14, 21.0.0 until 21.0.9.12, 22.0.0 until 22.2.10.12, 23.0.0 until 23.0.12.7, 24.0.0 until 24.0.12.2, 25.0.0 until 25.0.7, and 26.0.0 until 26.0.2, a user could use this functionality to get access to the login credentials of another user and take over their account. This issue has been patched in Nextcloud Server versions 25.0.7 and 26.0.2 and NextCloud Enterprise Server versions 19.0.13.9, 20.0.14.14, 21.0.9.12, 22.2.10.12, 23.0.12.7, 24.0.12.2, 25.0.7, and 26.0.2. Three workarounds are available. Disable app files_external. Change config setting "Allow users to mount external storage" to disabled in "Administration" > "External storage" settings `…/index.php/settings/admin/externalstorages`. Change config setting to disallow users to create external storages in "Administration" > "External storage" settings `…/index.php/settings/admin/externalstorages` with the types FTP, Nextcloud, SFTP, and/or WebDAV.

Severity ?

8.5 (High)


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

CWE

CWE-274 - Improper Handling of Insufficient Privileges

Assigner

GitHub_M

References

URL

Tags

	https://github.com/nextcloud/security-advisories/…	x_refsource_CONFIRM
	https://github.com/nextcloud/server/pull/38265	x_refsource_MISC
	https://hackerone.com/reports/1978882	x_refsource_MISC

Impacted products

	Vendor	Product	Version
	nextcloud	security-advisories	Affected: Nextcloud Enterprise Server >= 19.0.0, < 19.0.13.9 Affected: Nextcloud Enterprise Server >= 20.0.0.0, < 20.0.14.14 Affected: Nextcloud Enterprise Server >= 21.0.0.0, < 21.0.9.12 Affected: Nextcloud Enterprise Server >= 22.0.0.0, < 22.2.10.12 Affected: Nextcloud Enterprise Server >= 23.0.0.0, < 23.0.12.7 Affected: Nextcloud Enterprise Server >= 24.0.0.0, < 24.0.12.2 Affected: Nextcloud Enterprise Server >= 25.0.0, < 25.0.7 Affected: Nextcloud Enterprise Server >= 26.0.0, < 26.0.2 Affected: Nextcloud Server >= 25.0.0, < 25.0.7 Affected: Nextcloud Server >= 26.0.0, < 26.0.2

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-02T16:37:40.579Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "name": "https://github.com/nextcloud/security-advisories/security/advisories/GHSA-637g-xp2c-qh5h",
            "tags": [
              "x_refsource_CONFIRM",
              "x_transferred"
            ],
            "url": "https://github.com/nextcloud/security-advisories/security/advisories/GHSA-637g-xp2c-qh5h"
          },
          {
            "name": "https://github.com/nextcloud/server/pull/38265",
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://github.com/nextcloud/server/pull/38265"
          },
          {
            "name": "https://hackerone.com/reports/1978882",
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://hackerone.com/reports/1978882"
          }
        ],
        "title": "CVE Program Container"
      },
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2023-35928",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "total"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2024-12-05T16:18:00.553586Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2024-12-05T16:18:09.131Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "security-advisories",
          "vendor": "nextcloud",
          "versions": [
            {
              "status": "affected",
              "version": "Nextcloud Enterprise Server \u003e= 19.0.0, \u003c 19.0.13.9"
            },
            {
              "status": "affected",
              "version": "Nextcloud Enterprise Server \u003e= 20.0.0.0, \u003c 20.0.14.14"
            },
            {
              "status": "affected",
              "version": "Nextcloud Enterprise Server \u003e= 21.0.0.0, \u003c 21.0.9.12"
            },
            {
              "status": "affected",
              "version": "Nextcloud Enterprise Server \u003e= 22.0.0.0, \u003c 22.2.10.12"
            },
            {
              "status": "affected",
              "version": "Nextcloud Enterprise Server \u003e= 23.0.0.0, \u003c 23.0.12.7"
            },
            {
              "status": "affected",
              "version": "Nextcloud Enterprise Server \u003e= 24.0.0.0, \u003c 24.0.12.2"
            },
            {
              "status": "affected",
              "version": "Nextcloud Enterprise Server \u003e= 25.0.0, \u003c 25.0.7 "
            },
            {
              "status": "affected",
              "version": "Nextcloud Enterprise Server \u003e= 26.0.0, \u003c 26.0.2"
            },
            {
              "status": "affected",
              "version": "Nextcloud Server \u003e= 25.0.0, \u003c 25.0.7"
            },
            {
              "status": "affected",
              "version": "Nextcloud Server \u003e= 26.0.0, \u003c 26.0.2"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "Nextcloud Server is a space for data storage on Nextcloud, a self-hosted productivity playform. In NextCloud Server versions 25.0.0 until 25.0.7 and 26.0.0 until 26.0.2 and Nextcloud Enterprise Server versions 19.0.0 until 19.0.13.9, 20.0.0 until 20.0.14.14, 21.0.0 until 21.0.9.12, 22.0.0 until 22.2.10.12, 23.0.0 until 23.0.12.7, 24.0.0 until 24.0.12.2, 25.0.0 until 25.0.7, and 26.0.0 until 26.0.2, a user could use this functionality to get access to the login credentials of another user and take over their account. This issue has been patched in Nextcloud Server versions 25.0.7 and 26.0.2 and NextCloud Enterprise Server versions 19.0.13.9, 20.0.14.14, 21.0.9.12, 22.2.10.12, 23.0.12.7, 24.0.12.2, 25.0.7, and 26.0.2.\n\nThree workarounds are available. Disable app files_external. Change config setting \"Allow users to mount external storage\" to disabled in \"Administration\" \u003e \"External storage\" settings `\u2026/index.php/settings/admin/externalstorages`. Change config setting to disallow users to create external storages in \"Administration\" \u003e \"External storage\" settings `\u2026/index.php/settings/admin/externalstorages` with the types FTP, Nextcloud, SFTP, and/or WebDAV."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 8.5,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "HIGH",
            "scope": "CHANGED",
            "userInteraction": "REQUIRED",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:H/I:H/A:H",
            "version": "3.1"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-274",
              "description": "CWE-274: Improper Handling of Insufficient Privileges",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2023-06-23T20:58:33.225Z",
        "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "shortName": "GitHub_M"
      },
      "references": [
        {
          "name": "https://github.com/nextcloud/security-advisories/security/advisories/GHSA-637g-xp2c-qh5h",
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://github.com/nextcloud/security-advisories/security/advisories/GHSA-637g-xp2c-qh5h"
        },
        {
          "name": "https://github.com/nextcloud/server/pull/38265",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/nextcloud/server/pull/38265"
        },
        {
          "name": "https://hackerone.com/reports/1978882",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://hackerone.com/reports/1978882"
        }
      ],
      "source": {
        "advisory": "GHSA-637g-xp2c-qh5h",
        "discovery": "UNKNOWN"
      },
      "title": "Nextcloud user scoped external storage can be used to gather credentials of other users"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
    "assignerShortName": "GitHub_M",
    "cveId": "CVE-2023-35928",
    "datePublished": "2023-06-23T20:58:33.225Z",
    "dateReserved": "2023-06-20T14:02:45.593Z",
    "dateUpdated": "2024-12-05T16:18:09.131Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}

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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

CERTFR-2023-AVI-0485

Solution

CVE-2023-35927 (GCVE-0-2023-35927)

CVE-2023-35928 (GCVE-0-2023-35928)

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Nomenclature