CVE-2021-20634 (GCVE-0-2021-20634)

Vulnerability from cvelistv5 – Published: 2021-03-18 00:56 – Updated: 2024-08-03 17:45
VLAI?
Summary
Improper access control vulnerability in Custom App of Cybozu Office 10.0.0 to 10.8.4 allows authenticated attackers to bypass access restriction and obtain the date of Custom App via unspecified vectors.
Severity ?
No CVSS data available.
CWE
  • Improper Access Control
Assigner
References
Impacted products
Vendor Product Version
Cybozu, Inc. Cybozu Office Affected: 10.0.0 to 10.8.4
Create a notification for this product.
Show details on NVD website
To clipboard 

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-03T17:45:45.208Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://jvn.jp/en/jp/JVN45797538/index.html"
          },
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://kb.cybozu.support/article/36865/"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "Cybozu Office",
          "vendor": "Cybozu, Inc.",
          "versions": [
            {
              "status": "affected",
              "version": "10.0.0 to 10.8.4"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "Improper access control vulnerability in Custom App of Cybozu Office 10.0.0 to 10.8.4 allows authenticated attackers to bypass access restriction and obtain the date of Custom App via unspecified vectors."
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "description": "Improper Access Control",
              "lang": "en",
              "type": "text"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2021-03-18T00:56:03",
        "orgId": "ede6fdc4-6654-4307-a26d-3331c018e2ce",
        "shortName": "jpcert"
      },
      "references": [
        {
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://jvn.jp/en/jp/JVN45797538/index.html"
        },
        {
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://kb.cybozu.support/article/36865/"
        }
      ],
      "x_legacyV4Record": {
        "CVE_data_meta": {
          "ASSIGNER": "vultures@jpcert.or.jp",
          "ID": "CVE-2021-20634",
          "STATE": "PUBLIC"
        },
        "affects": {
          "vendor": {
            "vendor_data": [
              {
                "product": {
                  "product_data": [
                    {
                      "product_name": "Cybozu Office",
                      "version": {
                        "version_data": [
                          {
                            "version_value": "10.0.0 to 10.8.4"
                          }
                        ]
                      }
                    }
                  ]
                },
                "vendor_name": "Cybozu, Inc."
              }
            ]
          }
        },
        "data_format": "MITRE",
        "data_type": "CVE",
        "data_version": "4.0",
        "description": {
          "description_data": [
            {
              "lang": "eng",
              "value": "Improper access control vulnerability in Custom App of Cybozu Office 10.0.0 to 10.8.4 allows authenticated attackers to bypass access restriction and obtain the date of Custom App via unspecified vectors."
            }
          ]
        },
        "problemtype": {
          "problemtype_data": [
            {
              "description": [
                {
                  "lang": "eng",
                  "value": "Improper Access Control"
                }
              ]
            }
          ]
        },
        "references": {
          "reference_data": [
            {
              "name": "https://jvn.jp/en/jp/JVN45797538/index.html",
              "refsource": "MISC",
              "url": "https://jvn.jp/en/jp/JVN45797538/index.html"
            },
            {
              "name": "https://kb.cybozu.support/article/36865/",
              "refsource": "MISC",
              "url": "https://kb.cybozu.support/article/36865/"
            }
          ]
        }
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "ede6fdc4-6654-4307-a26d-3331c018e2ce",
    "assignerShortName": "jpcert",
    "cveId": "CVE-2021-20634",
    "datePublished": "2021-03-18T00:56:03",
    "dateReserved": "2020-12-17T00:00:00",
    "dateUpdated": "2024-08-03T17:45:45.208Z",
    "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:a:cybozu:office:*:*:*:*:*:*:*:*\", \"versionStartIncluding\": \"10.0.0\", \"versionEndIncluding\": \"10.8.4\", \"matchCriteriaId\": \"A468F5BE-4EB2-464F-AE29-D0C98163C410\"}]}]}]",
      "descriptions": "[{\"lang\": \"en\", \"value\": \"Improper access control vulnerability in Custom App of Cybozu Office 10.0.0 to 10.8.4 allows authenticated attackers to bypass access restriction and obtain the date of Custom App via unspecified vectors.\"}, {\"lang\": \"es\", \"value\": \"Una vulnerabilidad de control de acceso inapropiado en Custom App de Cybozu Office versiones 10.0.0 hasta 10.8.4, permite a atacantes autenticados omitir la restricci\\u00f3n de acceso y obtener la fecha de Custom App por medio de vectores no especificados\"}]",
      "id": "CVE-2021-20634",
      "lastModified": "2024-11-21T05:46:54.960",
      "metrics": "{\"cvssMetricV31\": [{\"source\": \"nvd@nist.gov\", \"type\": \"Primary\", \"cvssData\": {\"version\": \"3.1\", \"vectorString\": \"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N\", \"baseScore\": 4.3, \"baseSeverity\": \"MEDIUM\", \"attackVector\": \"NETWORK\", \"attackComplexity\": \"LOW\", \"privilegesRequired\": \"LOW\", \"userInteraction\": \"NONE\", \"scope\": \"UNCHANGED\", \"confidentialityImpact\": \"LOW\", \"integrityImpact\": \"NONE\", \"availabilityImpact\": \"NONE\"}, \"exploitabilityScore\": 2.8, \"impactScore\": 1.4}], \"cvssMetricV2\": [{\"source\": \"nvd@nist.gov\", \"type\": \"Primary\", \"cvssData\": {\"version\": \"2.0\", \"vectorString\": \"AV:N/AC:L/Au:S/C:P/I:N/A:N\", \"baseScore\": 4.0, \"accessVector\": \"NETWORK\", \"accessComplexity\": \"LOW\", \"authentication\": \"SINGLE\", \"confidentialityImpact\": \"PARTIAL\", \"integrityImpact\": \"NONE\", \"availabilityImpact\": \"NONE\"}, \"baseSeverity\": \"MEDIUM\", \"exploitabilityScore\": 8.0, \"impactScore\": 2.9, \"acInsufInfo\": false, \"obtainAllPrivilege\": false, \"obtainUserPrivilege\": false, \"obtainOtherPrivilege\": false, \"userInteractionRequired\": false}]}",
      "published": "2021-03-18T01:15:12.247",
      "references": "[{\"url\": \"https://jvn.jp/en/jp/JVN45797538/index.html\", \"source\": \"vultures@jpcert.or.jp\", \"tags\": [\"Third Party Advisory\"]}, {\"url\": \"https://kb.cybozu.support/article/36865/\", \"source\": \"vultures@jpcert.or.jp\", \"tags\": [\"Vendor Advisory\"]}, {\"url\": \"https://jvn.jp/en/jp/JVN45797538/index.html\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\", \"tags\": [\"Third Party Advisory\"]}, {\"url\": \"https://kb.cybozu.support/article/36865/\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\", \"tags\": [\"Vendor Advisory\"]}]",
      "sourceIdentifier": "vultures@jpcert.or.jp",
      "vulnStatus": "Modified",
      "weaknesses": "[{\"source\": \"nvd@nist.gov\", \"type\": \"Primary\", \"description\": [{\"lang\": \"en\", \"value\": \"NVD-CWE-Other\"}]}]"
    },
    "nvd": "{\"cve\":{\"id\":\"CVE-2021-20634\",\"sourceIdentifier\":\"vultures@jpcert.or.jp\",\"published\":\"2021-03-18T01:15:12.247\",\"lastModified\":\"2024-11-21T05:46:54.960\",\"vulnStatus\":\"Modified\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"Improper access control vulnerability in Custom App of Cybozu Office 10.0.0 to 10.8.4 allows authenticated attackers to bypass access restriction and obtain the date of Custom App via unspecified vectors.\"},{\"lang\":\"es\",\"value\":\"Una vulnerabilidad de control de acceso inapropiado en Custom App de Cybozu Office versiones 10.0.0 hasta 10.8.4, permite a atacantes autenticados omitir la restricci\u00f3n de acceso y obtener la fecha de Custom App por medio de vectores no especificados\"}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N\",\"baseScore\":4.3,\"baseSeverity\":\"MEDIUM\",\"attackVector\":\"NETWORK\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"LOW\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"LOW\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"NONE\"},\"exploitabilityScore\":2.8,\"impactScore\":1.4}],\"cvssMetricV2\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"2.0\",\"vectorString\":\"AV:N/AC:L/Au:S/C:P/I:N/A:N\",\"baseScore\":4.0,\"accessVector\":\"NETWORK\",\"accessComplexity\":\"LOW\",\"authentication\":\"SINGLE\",\"confidentialityImpact\":\"PARTIAL\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"NONE\"},\"baseSeverity\":\"MEDIUM\",\"exploitabilityScore\":8.0,\"impactScore\":2.9,\"acInsufInfo\":false,\"obtainAllPrivilege\":false,\"obtainUserPrivilege\":false,\"obtainOtherPrivilege\":false,\"userInteractionRequired\":false}]},\"weaknesses\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"NVD-CWE-Other\"}]}],\"configurations\":[{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:cybozu:office:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"10.0.0\",\"versionEndIncluding\":\"10.8.4\",\"matchCriteriaId\":\"A468F5BE-4EB2-464F-AE29-D0C98163C410\"}]}]}],\"references\":[{\"url\":\"https://jvn.jp/en/jp/JVN45797538/index.html\",\"source\":\"vultures@jpcert.or.jp\",\"tags\":[\"Third Party Advisory\"]},{\"url\":\"https://kb.cybozu.support/article/36865/\",\"source\":\"vultures@jpcert.or.jp\",\"tags\":[\"Vendor Advisory\"]},{\"url\":\"https://jvn.jp/en/jp/JVN45797538/index.html\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Third Party Advisory\"]},{\"url\":\"https://kb.cybozu.support/article/36865/\",\"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.