CVE-2018-19945 (GCVE-0-2018-19945)

Vulnerability from cvelistv5 – Published: 2020-12-31 16:33 – Updated: 2024-09-17 02:01
VLAI?
Summary
A vulnerability has been reported to affect earlier QNAP devices running QTS 4.3.4 to 4.3.6. Caused by improper limitations of a pathname to a restricted directory, this vulnerability allows for renaming arbitrary files on the target system, if exploited. QNAP have already fixed this vulnerability in the following versions: QTS 4.3.6.0895 build 20190328 (and later) QTS 4.3.4.0899 build 20190322 (and later) This issue does not affect QTS 4.4.x or QTS 4.5.x.
Severity ?
No CVSS data available.
CWE
  • CWE-20 - Improper Input Validation
  • CWE-22 - Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
  • CWE-73 - External Control of File Name or Path
  • CWE-284 - Improper Access Control
Assigner
References
Impacted products
Vendor Product Version
QNAP Systems Inc. QTS Affected: unspecified , < 4.3.6.0895 (custom)
Create a notification for this product.
    QNAP Systems Inc. QTS Affected: unspecified , < 4.3.4.0899 (custom)
Create a notification for this product.
    QNAP Systems Inc. QTS Unaffected: 4.5.x
Unaffected: 4.4.x
Create a notification for this product.
Credits
Independent Security Evaluators
Show details on NVD website
To clipboard 

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-05T11:51:17.544Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://www.qnap.com/zh-tw/security-advisory/qsa-20-21"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "platforms": [
            "build 20190328"
          ],
          "product": "QTS",
          "vendor": "QNAP Systems Inc.",
          "versions": [
            {
              "lessThan": "4.3.6.0895",
              "status": "affected",
              "version": "unspecified",
              "versionType": "custom"
            }
          ]
        },
        {
          "platforms": [
            "build 20190322"
          ],
          "product": "QTS",
          "vendor": "QNAP Systems Inc.",
          "versions": [
            {
              "lessThan": "4.3.4.0899",
              "status": "affected",
              "version": "unspecified",
              "versionType": "custom"
            }
          ]
        },
        {
          "product": "QTS",
          "vendor": "QNAP Systems Inc.",
          "versions": [
            {
              "status": "unaffected",
              "version": "4.5.x"
            },
            {
              "status": "unaffected",
              "version": "4.4.x"
            }
          ]
        }
      ],
      "credits": [
        {
          "lang": "en",
          "value": "Independent Security Evaluators"
        }
      ],
      "datePublic": "2020-12-30T00:00:00",
      "descriptions": [
        {
          "lang": "en",
          "value": "A vulnerability has been reported to affect earlier QNAP devices running QTS 4.3.4 to 4.3.6. Caused by improper limitations of a pathname to a restricted directory, this vulnerability allows for renaming arbitrary files on the target system, if exploited. QNAP have already fixed this vulnerability in the following versions: QTS 4.3.6.0895 build 20190328 (and later) QTS 4.3.4.0899 build 20190322 (and later) This issue does not affect QTS 4.4.x or QTS 4.5.x."
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-20",
              "description": "CWE-20 Improper Input Validation",
              "lang": "en",
              "type": "CWE"
            }
          ]
        },
        {
          "descriptions": [
            {
              "cweId": "CWE-22",
              "description": "CWE-22 Improper Limitation of a Pathname to a Restricted Directory (\u0027Path Traversal\u0027)",
              "lang": "en",
              "type": "CWE"
            }
          ]
        },
        {
          "descriptions": [
            {
              "cweId": "CWE-73",
              "description": "CWE-73 External Control of File Name or Path",
              "lang": "en",
              "type": "CWE"
            }
          ]
        },
        {
          "descriptions": [
            {
              "cweId": "CWE-284",
              "description": "CWE-284 Improper Access Control",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2020-12-31T16:33:27",
        "orgId": "2fd009eb-170a-4625-932b-17a53af1051f",
        "shortName": "qnap"
      },
      "references": [
        {
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://www.qnap.com/zh-tw/security-advisory/qsa-20-21"
        }
      ],
      "solutions": [
        {
          "lang": "en",
          "value": "QNAP have already fixed this vulnerability in the following versions:\n\nQTS 4.3.6.0895 build 20190328 (and later)\nQTS 4.3.4.0899 build 20190322 (and later)\nThis issue does not affect QTS 4.4.x or QTS 4.5.x."
        }
      ],
      "source": {
        "advisory": "QSA-20-21",
        "discovery": "EXTERNAL"
      },
      "title": "Improper Limitation of a Pathname to a Restricted Directory in QTS",
      "x_generator": {
        "engine": "Vulnogram 0.0.9"
      },
      "x_legacyV4Record": {
        "CVE_data_meta": {
          "ASSIGNER": "security@qnap.com",
          "DATE_PUBLIC": "2020-12-30T02:55:00.000Z",
          "ID": "CVE-2018-19945",
          "STATE": "PUBLIC",
          "TITLE": "Improper Limitation of a Pathname to a Restricted Directory in QTS"
        },
        "affects": {
          "vendor": {
            "vendor_data": [
              {
                "product": {
                  "product_data": [
                    {
                      "product_name": "QTS",
                      "version": {
                        "version_data": [
                          {
                            "platform": "build 20190328",
                            "version_affected": "\u003c",
                            "version_value": "4.3.6.0895"
                          },
                          {
                            "platform": "build 20190322",
                            "version_affected": "\u003c",
                            "version_value": "4.3.4.0899"
                          },
                          {
                            "version_affected": "!",
                            "version_value": "4.5.x"
                          },
                          {
                            "version_affected": "!",
                            "version_value": "4.4.x"
                          }
                        ]
                      }
                    }
                  ]
                },
                "vendor_name": "QNAP Systems Inc."
              }
            ]
          }
        },
        "credit": [
          {
            "lang": "eng",
            "value": "Independent Security Evaluators"
          }
        ],
        "data_format": "MITRE",
        "data_type": "CVE",
        "data_version": "4.0",
        "description": {
          "description_data": [
            {
              "lang": "eng",
              "value": "A vulnerability has been reported to affect earlier QNAP devices running QTS 4.3.4 to 4.3.6. Caused by improper limitations of a pathname to a restricted directory, this vulnerability allows for renaming arbitrary files on the target system, if exploited. QNAP have already fixed this vulnerability in the following versions: QTS 4.3.6.0895 build 20190328 (and later) QTS 4.3.4.0899 build 20190322 (and later) This issue does not affect QTS 4.4.x or QTS 4.5.x."
            }
          ]
        },
        "generator": {
          "engine": "Vulnogram 0.0.9"
        },
        "problemtype": {
          "problemtype_data": [
            {
              "description": [
                {
                  "lang": "eng",
                  "value": "CWE-20 Improper Input Validation"
                }
              ]
            },
            {
              "description": [
                {
                  "lang": "eng",
                  "value": "CWE-22 Improper Limitation of a Pathname to a Restricted Directory (\u0027Path Traversal\u0027)"
                }
              ]
            },
            {
              "description": [
                {
                  "lang": "eng",
                  "value": "CWE-73 External Control of File Name or Path"
                }
              ]
            },
            {
              "description": [
                {
                  "lang": "eng",
                  "value": "CWE-284 Improper Access Control"
                }
              ]
            }
          ]
        },
        "references": {
          "reference_data": [
            {
              "name": "https://www.qnap.com/zh-tw/security-advisory/qsa-20-21",
              "refsource": "MISC",
              "url": "https://www.qnap.com/zh-tw/security-advisory/qsa-20-21"
            }
          ]
        },
        "solution": [
          {
            "lang": "en",
            "value": "QNAP have already fixed this vulnerability in the following versions:\n\nQTS 4.3.6.0895 build 20190328 (and later)\nQTS 4.3.4.0899 build 20190322 (and later)\nThis issue does not affect QTS 4.4.x or QTS 4.5.x."
          }
        ],
        "source": {
          "advisory": "QSA-20-21",
          "discovery": "EXTERNAL"
        }
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "2fd009eb-170a-4625-932b-17a53af1051f",
    "assignerShortName": "qnap",
    "cveId": "CVE-2018-19945",
    "datePublished": "2020-12-31T16:33:27.917070Z",
    "dateReserved": "2018-12-07T00:00:00",
    "dateUpdated": "2024-09-17T02:01:35.778Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1",
  "vulnerability-lookup:meta": {
    "fkie_nvd": {
      "configurations": "[{\"nodes\": [{\"operator\": \"OR\", \"negate\": false, \"cpeMatch\": [{\"vulnerable\": true, \"criteria\": \"cpe:2.3:o:qnap:qts:*:*:*:*:*:*:*:*\", \"versionStartIncluding\": \"4.3.4\", \"versionEndExcluding\": \"4.3.4.0899\", \"matchCriteriaId\": \"4E35BB2A-1E3B-4D5C-B6E0-357D430D0C68\"}, {\"vulnerable\": true, \"criteria\": \"cpe:2.3:o:qnap:qts:*:*:*:*:*:*:*:*\", \"versionStartIncluding\": \"4.3.5\", \"versionEndExcluding\": \"4.3.6.0895\", \"matchCriteriaId\": \"4D099A53-6729-43B2-B762-873BCDC0C354\"}]}]}]",
      "descriptions": "[{\"lang\": \"en\", \"value\": \"A vulnerability has been reported to affect earlier QNAP devices running QTS 4.3.4 to 4.3.6. Caused by improper limitations of a pathname to a restricted directory, this vulnerability allows for renaming arbitrary files on the target system, if exploited. QNAP have already fixed this vulnerability in the following versions: QTS 4.3.6.0895 build 20190328 (and later) QTS 4.3.4.0899 build 20190322 (and later) This issue does not affect QTS 4.4.x or QTS 4.5.x.\"}, {\"lang\": \"es\", \"value\": \"Se ha reportado de una vulnerabilidad que afecta a los dispositivos QNAP anteriores que ejecutan QTS versi\\u00f3n 4.3.4 a la 4.3.6.\u0026#xa0;Causada por limitaciones inapropiadas de un nombre de ruta en un directorio restringido, esta vulnerabilidad permite cambiar el nombre de archivos arbitrarios en el sistema de destino, si se explota.\u0026#xa0;QNAP ya ha corregido esta vulnerabilidad en las siguientes versiones: QTS versi\\u00f3n 4.3.6.0895 build 20190328 (y posterior) QTS versi\\u00f3n 4.3.4.0899 build 20190322 (y posterior) Este problema no afecta a QTS versi\\u00f3n 4.4.x o QTS versi\\u00f3n 4.5.x.\"}]",
      "id": "CVE-2018-19945",
      "lastModified": "2024-11-21T03:58:51.720",
      "metrics": "{\"cvssMetricV31\": [{\"source\": \"nvd@nist.gov\", \"type\": \"Primary\", \"cvssData\": {\"version\": \"3.1\", \"vectorString\": \"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H\", \"baseScore\": 9.1, \"baseSeverity\": \"CRITICAL\", \"attackVector\": \"NETWORK\", \"attackComplexity\": \"LOW\", \"privilegesRequired\": \"NONE\", \"userInteraction\": \"NONE\", \"scope\": \"UNCHANGED\", \"confidentialityImpact\": \"NONE\", \"integrityImpact\": \"HIGH\", \"availabilityImpact\": \"HIGH\"}, \"exploitabilityScore\": 3.9, \"impactScore\": 5.2}], \"cvssMetricV2\": [{\"source\": \"nvd@nist.gov\", \"type\": \"Primary\", \"cvssData\": {\"version\": \"2.0\", \"vectorString\": \"AV:N/AC:L/Au:N/C:N/I:P/A:C\", \"baseScore\": 8.5, \"accessVector\": \"NETWORK\", \"accessComplexity\": \"LOW\", \"authentication\": \"NONE\", \"confidentialityImpact\": \"NONE\", \"integrityImpact\": \"PARTIAL\", \"availabilityImpact\": \"COMPLETE\"}, \"baseSeverity\": \"HIGH\", \"exploitabilityScore\": 10.0, \"impactScore\": 7.8, \"acInsufInfo\": false, \"obtainAllPrivilege\": false, \"obtainUserPrivilege\": false, \"obtainOtherPrivilege\": false, \"userInteractionRequired\": false}]}",
      "published": "2020-12-31T17:15:12.510",
      "references": "[{\"url\": \"https://www.qnap.com/zh-tw/security-advisory/qsa-20-21\", \"source\": \"security@qnapsecurity.com.tw\", \"tags\": [\"Vendor Advisory\"]}, {\"url\": \"https://www.qnap.com/zh-tw/security-advisory/qsa-20-21\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\", \"tags\": [\"Vendor Advisory\"]}]",
      "sourceIdentifier": "security@qnapsecurity.com.tw",
      "vulnStatus": "Modified",
      "weaknesses": "[{\"source\": \"security@qnapsecurity.com.tw\", \"type\": \"Secondary\", \"description\": [{\"lang\": \"en\", \"value\": \"CWE-20\"}, {\"lang\": \"en\", \"value\": \"CWE-22\"}, {\"lang\": \"en\", \"value\": \"CWE-73\"}, {\"lang\": \"en\", \"value\": \"CWE-284\"}]}, {\"source\": \"nvd@nist.gov\", \"type\": \"Primary\", \"description\": [{\"lang\": \"en\", \"value\": \"CWE-22\"}]}]"
    },
    "nvd": "{\"cve\":{\"id\":\"CVE-2018-19945\",\"sourceIdentifier\":\"security@qnapsecurity.com.tw\",\"published\":\"2020-12-31T17:15:12.510\",\"lastModified\":\"2024-11-21T03:58:51.720\",\"vulnStatus\":\"Modified\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"A vulnerability has been reported to affect earlier QNAP devices running QTS 4.3.4 to 4.3.6. Caused by improper limitations of a pathname to a restricted directory, this vulnerability allows for renaming arbitrary files on the target system, if exploited. QNAP have already fixed this vulnerability in the following versions: QTS 4.3.6.0895 build 20190328 (and later) QTS 4.3.4.0899 build 20190322 (and later) This issue does not affect QTS 4.4.x or QTS 4.5.x.\"},{\"lang\":\"es\",\"value\":\"Se ha reportado de una vulnerabilidad que afecta a los dispositivos QNAP anteriores que ejecutan QTS versi\u00f3n 4.3.4 a la 4.3.6.\u0026#xa0;Causada por limitaciones inapropiadas de un nombre de ruta en un directorio restringido, esta vulnerabilidad permite cambiar el nombre de archivos arbitrarios en el sistema de destino, si se explota.\u0026#xa0;QNAP ya ha corregido esta vulnerabilidad en las siguientes versiones: QTS versi\u00f3n 4.3.6.0895 build 20190328 (y posterior) QTS versi\u00f3n 4.3.4.0899 build 20190322 (y posterior) Este problema no afecta a QTS versi\u00f3n 4.4.x o QTS versi\u00f3n 4.5.x.\"}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H\",\"baseScore\":9.1,\"baseSeverity\":\"CRITICAL\",\"attackVector\":\"NETWORK\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"NONE\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"NONE\",\"integrityImpact\":\"HIGH\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":3.9,\"impactScore\":5.2}],\"cvssMetricV2\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"2.0\",\"vectorString\":\"AV:N/AC:L/Au:N/C:N/I:P/A:C\",\"baseScore\":8.5,\"accessVector\":\"NETWORK\",\"accessComplexity\":\"LOW\",\"authentication\":\"NONE\",\"confidentialityImpact\":\"NONE\",\"integrityImpact\":\"PARTIAL\",\"availabilityImpact\":\"COMPLETE\"},\"baseSeverity\":\"HIGH\",\"exploitabilityScore\":10.0,\"impactScore\":7.8,\"acInsufInfo\":false,\"obtainAllPrivilege\":false,\"obtainUserPrivilege\":false,\"obtainOtherPrivilege\":false,\"userInteractionRequired\":false}]},\"weaknesses\":[{\"source\":\"security@qnapsecurity.com.tw\",\"type\":\"Secondary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-20\"},{\"lang\":\"en\",\"value\":\"CWE-22\"},{\"lang\":\"en\",\"value\":\"CWE-73\"},{\"lang\":\"en\",\"value\":\"CWE-284\"}]},{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-22\"}]}],\"configurations\":[{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:qnap:qts:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"4.3.4\",\"versionEndExcluding\":\"4.3.4.0899\",\"matchCriteriaId\":\"4E35BB2A-1E3B-4D5C-B6E0-357D430D0C68\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:qnap:qts:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"4.3.5\",\"versionEndExcluding\":\"4.3.6.0895\",\"matchCriteriaId\":\"4D099A53-6729-43B2-B762-873BCDC0C354\"}]}]}],\"references\":[{\"url\":\"https://www.qnap.com/zh-tw/security-advisory/qsa-20-21\",\"source\":\"security@qnapsecurity.com.tw\",\"tags\":[\"Vendor Advisory\"]},{\"url\":\"https://www.qnap.com/zh-tw/security-advisory/qsa-20-21\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Vendor Advisory\"]}]}}"
  }
}


Log in or create an account to share your comment.




Tags
Taxonomy of the tags.




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.