gsd-2021-44052
Vulnerability from gsd
Modified
2023-12-13 01:23
Details
An improper link resolution before file access ('Link Following') vulnerability has been reported to affect QNAP device running QuTScloud, QuTS hero, and QTS. If exploited, this vulnerability allows remote attackers to traverse the file system to unintended locations and read or overwrite the contents of unexpected files. We have already fixed this vulnerability in the following versions of QuTScloud, QuTS hero, and QTS: QuTScloud c5.0.1.1998 and later QuTS hero h4.5.4.1971 build 20220310 and later QuTS hero h5.0.0.1986 build 20220324 and later QTS 4.3.4.1976 build 20220303 and later QTS 4.3.3.1945 build 20220303 and later QTS 4.2.6 build 20220304 and later QTS 4.3.6.1965 build 20220302 and later QTS 5.0.0.1986 build 20220324 and later QTS 4.5.4.1991 build 20220329 and later
Aliases
Aliases
CVE-2021-44052


To clipboard 

{
  "GSD": {
    "alias": "CVE-2021-44052",
    "description": "An improper link resolution before file access (\u0027Link Following\u0027) vulnerability has been reported to affect QNAP device running QuTScloud, QuTS hero, and QTS. If exploited, this vulnerability allows remote attackers to traverse the file system to unintended locations and read or overwrite the contents of unexpected files. We have already fixed this vulnerability in the following versions of QuTScloud, QuTS hero, and QTS: QuTScloud c5.0.1.1998 and later QuTS hero h4.5.4.1971 build 20220310 and later QuTS hero h5.0.0.1986 build 20220324 and later QTS 4.3.4.1976 build 20220303 and later QTS 4.3.3.1945 build 20220303 and later QTS 4.2.6 build 20220304 and later QTS 4.3.6.1965 build 20220302 and later QTS 5.0.0.1986 build 20220324 and later QTS 4.5.4.1991 build 20220329 and later",
    "id": "GSD-2021-44052"
  },
  "gsd": {
    "metadata": {
      "exploitCode": "unknown",
      "remediation": "unknown",
      "reportConfidence": "confirmed",
      "type": "vulnerability"
    },
    "osvSchema": {
      "aliases": [
        "CVE-2021-44052"
      ],
      "details": "An improper link resolution before file access (\u0027Link Following\u0027) vulnerability has been reported to affect QNAP device running QuTScloud, QuTS hero, and QTS. If exploited, this vulnerability allows remote attackers to traverse the file system to unintended locations and read or overwrite the contents of unexpected files. We have already fixed this vulnerability in the following versions of QuTScloud, QuTS hero, and QTS: QuTScloud c5.0.1.1998 and later QuTS hero h4.5.4.1971 build 20220310 and later QuTS hero h5.0.0.1986 build 20220324 and later QTS 4.3.4.1976 build 20220303 and later QTS 4.3.3.1945 build 20220303 and later QTS 4.2.6 build 20220304 and later QTS 4.3.6.1965 build 20220302 and later QTS 5.0.0.1986 build 20220324 and later QTS 4.5.4.1991 build 20220329 and later",
      "id": "GSD-2021-44052",
      "modified": "2023-12-13T01:23:20.350674Z",
      "schema_version": "1.4.0"
    }
  },
  "namespaces": {
    "cve.org": {
      "CVE_data_meta": {
        "ASSIGNER": "security@qnap.com",
        "DATE_PUBLIC": "2022-05-06T00:00:00.000Z",
        "ID": "CVE-2021-44052",
        "STATE": "PUBLIC",
        "TITLE": "Arbitrary file read"
      },
      "affects": {
        "vendor": {
          "vendor_data": [
            {
              "product": {
                "product_data": [
                  {
                    "product_name": "QuTScloud",
                    "version": {
                      "version_data": [
                        {
                          "version_affected": "\u003c",
                          "version_value": "c5.0.1.1998"
                        }
                      ]
                    }
                  },
                  {
                    "product_name": "QuTS hero",
                    "version": {
                      "version_data": [
                        {
                          "version_affected": "\u003c",
                          "version_value": "h4.5.4.1971 build 20220310"
                        },
                        {
                          "version_affected": "\u003c",
                          "version_value": "h5.0.0.1986 build 20220324"
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                    }
                  },
                  {
                    "product_name": "QTS",
                    "version": {
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                          "version_affected": "\u003c",
                          "version_value": "4.3.4.1976 build 20220303"
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                          "version_value": "4.3.3.1945 build 20220303"
                        },
                        {
                          "version_affected": "\u003c",
                          "version_value": "4.2.6 build 20220304"
                        },
                        {
                          "version_affected": "\u003c",
                          "version_value": "4.3.6.1965 build 20220302"
                        },
                        {
                          "version_affected": "\u003c",
                          "version_value": "5.0.0.1986 build 20220324"
                        },
                        {
                          "version_affected": "\u003c",
                          "version_value": "4.5.4.1991 build 20220329"
                        }
                      ]
                    }
                  }
                ]
              },
              "vendor_name": "QNAP Systems Inc."
            }
          ]
        }
      },
      "credit": [
        {
          "lang": "eng",
          "value": "Enio Pena Navarro and Michael Messner from Siemens Energy AG"
        }
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          {
            "lang": "eng",
            "value": "An improper link resolution before file access (\u0027Link Following\u0027) vulnerability has been reported to affect QNAP device running QuTScloud, QuTS hero, and QTS. If exploited, this vulnerability allows remote attackers to traverse the file system to unintended locations and read or overwrite the contents of unexpected files. We have already fixed this vulnerability in the following versions of QuTScloud, QuTS hero, and QTS: QuTScloud c5.0.1.1998 and later QuTS hero h4.5.4.1971 build 20220310 and later QuTS hero h5.0.0.1986 build 20220324 and later QTS 4.3.4.1976 build 20220303 and later QTS 4.3.3.1945 build 20220303 and later QTS 4.2.6 build 20220304 and later QTS 4.3.6.1965 build 20220302 and later QTS 5.0.0.1986 build 20220324 and later QTS 4.5.4.1991 build 20220329 and later"
          }
        ]
      },
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          "attackVector": "NETWORK",
          "availabilityImpact": "NONE",
          "baseScore": 6.5,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "NONE",
          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N",
          "version": "3.1"
        }
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            "refsource": "MISC",
            "url": "https://www.qnap.com/en/security-advisory/qsa-22-16"
          }
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      },
      "solution": [
        {
          "lang": "eng",
          "value": "We have already fixed this vulnerability in the following versions of QuTScloud, QuTS hero, and QTS:\nQuTScloud c5.0.1.1998 and later\nQuTS hero h4.5.4.1971 build 20220310 and later\nQuTS hero h5.0.0.1986 build 20220324 and later\nQTS 4.3.4.1976 build 20220303 and later\nQTS 4.3.3.1945 build 20220303 and later\nQTS 4.2.6 build 20220304 and later\nQTS 4.3.6.1965 build 20220302 and later\nQTS 5.0.0.1986 build 20220324 and later\nQTS 4.5.4.1991 build 20220329 and later"
        }
      ],
      "source": {
        "advisory": "QSA-22-16",
        "discovery": "EXTERNAL"
      }
    },
    "nvd.nist.gov": {
      "configurations": {
        "CVE_data_version": "4.0",
        "nodes": [
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            "children": [],
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          "ID": "CVE-2021-44052"
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              "value": "An improper link resolution before file access (\u0027Link Following\u0027) vulnerability has been reported to affect QNAP device running QuTScloud, QuTS hero, and QTS. If exploited, this vulnerability allows remote attackers to traverse the file system to unintended locations and read or overwrite the contents of unexpected files. We have already fixed this vulnerability in the following versions of QuTScloud, QuTS hero, and QTS: QuTScloud c5.0.1.1998 and later QuTS hero h4.5.4.1971 build 20220310 and later QuTS hero h5.0.0.1986 build 20220324 and later QTS 4.3.4.1976 build 20220303 and later QTS 4.3.3.1945 build 20220303 and later QTS 4.2.6 build 20220304 and later QTS 4.3.6.1965 build 20220302 and later QTS 5.0.0.1986 build 20220324 and later QTS 4.5.4.1991 build 20220329 and later"
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          "cvssV2": {
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            "accessVector": "NETWORK",
            "authentication": "SINGLE",
            "availabilityImpact": "NONE",
            "baseScore": 5.5,
            "confidentialityImpact": "PARTIAL",
            "integrityImpact": "PARTIAL",
            "vectorString": "AV:N/AC:L/Au:S/C:P/I:P/A:N",
            "version": "2.0"
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          "exploitabilityScore": 8.0,
          "impactScore": 4.9,
          "obtainAllPrivilege": false,
          "obtainOtherPrivilege": false,
          "obtainUserPrivilege": false,
          "severity": "MEDIUM",
          "userInteractionRequired": false
        },
        "baseMetricV3": {
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            "attackVector": "NETWORK",
            "availabilityImpact": "NONE",
            "baseScore": 8.1,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "LOW",
            "scope": "UNCHANGED",
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          "exploitabilityScore": 2.8,
          "impactScore": 5.2
        }
      },
      "lastModifiedDate": "2023-11-14T19:26Z",
      "publishedDate": "2022-05-05T17:15Z"
    }
  }
}


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