gsd-2023-28998
Vulnerability from gsd
Modified
2023-12-13 01:20
Details
The Nextcloud Desktop Client is a tool to synchronize files from Nextcloud Server. Starting with version 3.0.0 and prior to version 3.6.5, a malicious server administrator can gain full access to an end-to-end encrypted folder. They can decrypt files, recover the folder structure, and add new files.​ Users should upgrade the Nextcloud Desktop client to 3.6.5 to receive a patch. No known workarounds are available.
Aliases
Aliases
CVE-2023-28998


To clipboard 

{
  "GSD": {
    "alias": "CVE-2023-28998",
    "id": "GSD-2023-28998"
  },
  "gsd": {
    "metadata": {
      "exploitCode": "unknown",
      "remediation": "unknown",
      "reportConfidence": "confirmed",
      "type": "vulnerability"
    },
    "osvSchema": {
      "aliases": [
        "CVE-2023-28998"
      ],
      "details": "The Nextcloud Desktop Client is a tool to synchronize files from Nextcloud Server. Starting with version 3.0.0 and prior to version 3.6.5, a malicious server administrator can gain full access to an end-to-end encrypted folder. They can decrypt files, recover the folder structure, and add new files.\u200b Users should upgrade the Nextcloud Desktop client to 3.6.5 to receive a patch. No known workarounds are available.",
      "id": "GSD-2023-28998",
      "modified": "2023-12-13T01:20:46.644354Z",
      "schema_version": "1.4.0"
    }
  },
  "namespaces": {
    "cve.org": {
      "CVE_data_meta": {
        "ASSIGNER": "security-advisories@github.com",
        "ID": "CVE-2023-28998",
        "STATE": "PUBLIC"
      },
      "affects": {
        "vendor": {
          "vendor_data": [
            {
              "product": {
                "product_data": [
                  {
                    "product_name": "security-advisories",
                    "version": {
                      "version_data": [
                        {
                          "version_affected": "=",
                          "version_value": "\u003e= 3.0.0, \u003c 3.6.5"
                        }
                      ]
                    }
                  }
                ]
              },
              "vendor_name": "nextcloud"
            }
          ]
        }
      },
      "data_format": "MITRE",
      "data_type": "CVE",
      "data_version": "4.0",
      "description": {
        "description_data": [
          {
            "lang": "eng",
            "value": "The Nextcloud Desktop Client is a tool to synchronize files from Nextcloud Server. Starting with version 3.0.0 and prior to version 3.6.5, a malicious server administrator can gain full access to an end-to-end encrypted folder. They can decrypt files, recover the folder structure, and add new files.\u200b Users should upgrade the Nextcloud Desktop client to 3.6.5 to receive a patch. No known workarounds are available."
          }
        ]
      },
      "impact": {
        "cvss": [
          {
            "attackComplexity": "LOW",
            "attackVector": "PHYSICAL",
            "availabilityImpact": "NONE",
            "baseScore": 6.7,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "HIGH",
            "scope": "CHANGED",
            "userInteraction": "REQUIRED",
            "vectorString": "CVSS:3.1/AV:P/AC:L/PR:H/UI:R/S:C/C:H/I:H/A:N",
            "version": "3.1"
          }
        ]
      },
      "problemtype": {
        "problemtype_data": [
          {
            "description": [
              {
                "cweId": "CWE-325",
                "lang": "eng",
                "value": "CWE-325: Missing Cryptographic Step"
              }
            ]
          }
        ]
      },
      "references": {
        "reference_data": [
          {
            "name": "https://ethz.ch/content/dam/ethz/special-interest/infk/inst-infsec/appliedcrypto/education/theses/report_DanieleCoppola.pdf",
            "refsource": "MISC",
            "url": "https://ethz.ch/content/dam/ethz/special-interest/infk/inst-infsec/appliedcrypto/education/theses/report_DanieleCoppola.pdf"
          },
          {
            "name": "https://github.com/nextcloud/security-advisories/security/advisories/GHSA-jh3g-wpwv-cqgr",
            "refsource": "MISC",
            "url": "https://github.com/nextcloud/security-advisories/security/advisories/GHSA-jh3g-wpwv-cqgr"
          },
          {
            "name": "https://github.com/nextcloud/desktop/pull/5323",
            "refsource": "MISC",
            "url": "https://github.com/nextcloud/desktop/pull/5323"
          }
        ]
      },
      "source": {
        "advisory": "GHSA-jh3g-wpwv-cqgr",
        "discovery": "UNKNOWN"
      }
    },
    "nvd.nist.gov": {
      "configurations": {
        "CVE_data_version": "4.0",
        "nodes": [
          {
            "children": [],
            "cpe_match": [
              {
                "cpe23Uri": "cpe:2.3:a:nextcloud:desktop:*:*:*:*:*:*:*:*",
                "cpe_name": [],
                "versionEndExcluding": "3.6.5",
                "versionStartIncluding": "3.0.0",
                "vulnerable": true
              }
            ],
            "operator": "OR"
          }
        ]
      },
      "cve": {
        "CVE_data_meta": {
          "ASSIGNER": "security-advisories@github.com",
          "ID": "CVE-2023-28998"
        },
        "data_format": "MITRE",
        "data_type": "CVE",
        "data_version": "4.0",
        "description": {
          "description_data": [
            {
              "lang": "en",
              "value": "The Nextcloud Desktop Client is a tool to synchronize files from Nextcloud Server. Starting with version 3.0.0 and prior to version 3.6.5, a malicious server administrator can gain full access to an end-to-end encrypted folder. They can decrypt files, recover the folder structure, and add new files.? Users should upgrade the Nextcloud Desktop client to 3.6.5 to receive a patch. No known workarounds are available."
            }
          ]
        },
        "problemtype": {
          "problemtype_data": [
            {
              "description": [
                {
                  "lang": "en",
                  "value": "CWE-325"
                }
              ]
            }
          ]
        },
        "references": {
          "reference_data": [
            {
              "name": "https://github.com/nextcloud/desktop/pull/5323",
              "refsource": "MISC",
              "tags": [
                "Patch",
                "Vendor Advisory"
              ],
              "url": "https://github.com/nextcloud/desktop/pull/5323"
            },
            {
              "name": "https://ethz.ch/content/dam/ethz/special-interest/infk/inst-infsec/appliedcrypto/education/theses/report_DanieleCoppola.pdf",
              "refsource": "MISC",
              "tags": [
                "Exploit",
                "Technical Description",
                "Third Party Advisory"
              ],
              "url": "https://ethz.ch/content/dam/ethz/special-interest/infk/inst-infsec/appliedcrypto/education/theses/report_DanieleCoppola.pdf"
            },
            {
              "name": "https://github.com/nextcloud/security-advisories/security/advisories/GHSA-jh3g-wpwv-cqgr",
              "refsource": "MISC",
              "tags": [
                "Vendor Advisory"
              ],
              "url": "https://github.com/nextcloud/security-advisories/security/advisories/GHSA-jh3g-wpwv-cqgr"
            }
          ]
        }
      },
      "impact": {
        "baseMetricV3": {
          "cvssV3": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "NONE",
            "baseScore": 6.1,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "HIGH",
            "scope": "UNCHANGED",
            "userInteraction": "REQUIRED",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:H/I:H/A:N",
            "version": "3.1"
          },
          "exploitabilityScore": 0.9,
          "impactScore": 5.2
        }
      },
      "lastModifiedDate": "2023-04-10T18:14Z",
      "publishedDate": "2023-04-04T13:15Z"
    }
  }
}


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