{
  "id": "CVE-2023-28997",
  "sourceIdentifier": "security-advisories@github.com",
  "published": "2023-04-04T13:15:08.867",
  "lastModified": "2024-11-21T07:56:21.860",
  "vulnStatus": "Modified",
  "cveTags": [],
  "descriptions": [
    {
      "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 recover and modify the contents of end-to-end encrypted files. Users should upgrade the Nextcloud Desktop client to 3.6.5 to receive a patch. No known workarounds are available."
    }
  ],
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        "source": "security-advisories@github.com",
        "type": "Secondary",
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          "version": "3.1",
          "vectorString": "CVSS:3.1/AV:P/AC:L/PR:H/UI:R/S:C/C:H/I:H/A:N",
          "baseScore": 6.7,
          "baseSeverity": "MEDIUM",
          "attackVector": "PHYSICAL",
          "attackComplexity": "LOW",
          "privilegesRequired": "HIGH",
          "userInteraction": "REQUIRED",
          "scope": "CHANGED",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "availabilityImpact": "NONE"
        },
        "exploitabilityScore": 0.4,
        "impactScore": 5.8
      },
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        "source": "nvd@nist.gov",
        "type": "Primary",
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          "baseScore": 6.5,
          "baseSeverity": "MEDIUM",
          "attackVector": "NETWORK",
          "attackComplexity": "LOW",
          "privilegesRequired": "HIGH",
          "userInteraction": "NONE",
          "scope": "UNCHANGED",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "availabilityImpact": "NONE"
        },
        "exploitabilityScore": 1.2,
        "impactScore": 5.2
      }
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      "source": "security-advisories@github.com",
      "type": "Primary",
      "description": [
        {
          "lang": "en",
          "value": "CWE-323"
        }
      ]
    }
  ],
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          "negate": false,
          "cpeMatch": [
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              "vulnerable": true,
              "criteria": "cpe:2.3:a:nextcloud:desktop:*:*:*:*:*:*:*:*",
              "versionStartIncluding": "3.0.0",
              "versionEndExcluding": "3.6.5",
              "matchCriteriaId": "F1D69443-506B-4A0C-92F4-880BA513B520"
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  ],
  "references": [
    {
      "url": "https://ethz.ch/content/dam/ethz/special-interest/infk/inst-infsec/appliedcrypto/education/theses/report_DanieleCoppola.pdf",
      "source": "security-advisories@github.com",
      "tags": [
        "Exploit",
        "Technical Description",
        "Third Party Advisory"
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    {
      "url": "https://github.com/nextcloud/desktop/pull/5324",
      "source": "security-advisories@github.com",
      "tags": [
        "Patch"
      ]
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    {
      "url": "https://github.com/nextcloud/security-advisories/security/advisories/GHSA-4p33-rw27-j5fc",
      "source": "security-advisories@github.com",
      "tags": [
        "Vendor Advisory"
      ]
    },
    {
      "url": "https://ethz.ch/content/dam/ethz/special-interest/infk/inst-infsec/appliedcrypto/education/theses/report_DanieleCoppola.pdf",
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Exploit",
        "Technical Description",
        "Third Party Advisory"
      ]
    },
    {
      "url": "https://github.com/nextcloud/desktop/pull/5324",
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Patch"
      ]
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      "url": "https://github.com/nextcloud/security-advisories/security/advisories/GHSA-4p33-rw27-j5fc",
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
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}