CVE-2021-20755 (GCVE-0-2021-20755)

Vulnerability from cvelistv5 – Published: 2021-08-18 05:35 – Updated: 2024-08-03 17:53
VLAI
Summary
Viewing restrictions bypass vulnerability in Portal of Cybozu Garoon 4.0.0 to 5.0.2 allows a remote authenticated attacker to obtain the data of Portal without the viewing privilege.
Severity
4.3 (Medium)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
CWE
  • Viewing restrictions bypass
Assigner
References
Impacted products
Vendor Product Version CPE status
Cybozu, Inc. Cybozu Garoon Affected: 4.0.0 to 5.0.2
guessed Create a notification for this product.
Show details on NVD website
To clipboard 

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-03T17:53:22.065Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://cs.cybozu.co.jp/2021/007206.html"
          },
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://jvn.jp/en/jp/JVN54794245/index.html"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "Cybozu Garoon",
          "vendor": "Cybozu, Inc.",
          "versions": [
            {
              "status": "affected",
              "version": "4.0.0 to 5.0.2"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "Viewing restrictions bypass vulnerability in Portal of Cybozu Garoon 4.0.0 to 5.0.2 allows a remote authenticated attacker to obtain the data of Portal without the viewing privilege."
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "description": "Viewing restrictions bypass",
              "lang": "en",
              "type": "text"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2021-08-18T05:35:52.000Z",
        "orgId": "ede6fdc4-6654-4307-a26d-3331c018e2ce",
        "shortName": "jpcert"
      },
      "references": [
        {
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://cs.cybozu.co.jp/2021/007206.html"
        },
        {
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://jvn.jp/en/jp/JVN54794245/index.html"
        }
      ],
      "x_legacyV4Record": {
        "CVE_data_meta": {
          "ASSIGNER": "vultures@jpcert.or.jp",
          "ID": "CVE-2021-20755",
          "STATE": "PUBLIC"
        },
        "affects": {
          "vendor": {
            "vendor_data": [
              {
                "product": {
                  "product_data": [
                    {
                      "product_name": "Cybozu Garoon",
                      "version": {
                        "version_data": [
                          {
                            "version_value": "4.0.0 to 5.0.2"
                          }
                        ]
                      }
                    }
                  ]
                },
                "vendor_name": "Cybozu, Inc."
              }
            ]
          }
        },
        "data_format": "MITRE",
        "data_type": "CVE",
        "data_version": "4.0",
        "description": {
          "description_data": [
            {
              "lang": "eng",
              "value": "Viewing restrictions bypass vulnerability in Portal of Cybozu Garoon 4.0.0 to 5.0.2 allows a remote authenticated attacker to obtain the data of Portal without the viewing privilege."
            }
          ]
        },
        "problemtype": {
          "problemtype_data": [
            {
              "description": [
                {
                  "lang": "eng",
                  "value": "Viewing restrictions bypass"
                }
              ]
            }
          ]
        },
        "references": {
          "reference_data": [
            {
              "name": "https://cs.cybozu.co.jp/2021/007206.html",
              "refsource": "MISC",
              "url": "https://cs.cybozu.co.jp/2021/007206.html"
            },
            {
              "name": "https://jvn.jp/en/jp/JVN54794245/index.html",
              "refsource": "MISC",
              "url": "https://jvn.jp/en/jp/JVN54794245/index.html"
            }
          ]
        }
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "ede6fdc4-6654-4307-a26d-3331c018e2ce",
    "assignerShortName": "jpcert",
    "cveId": "CVE-2021-20755",
    "datePublished": "2021-08-18T05:35:53.000Z",
    "dateReserved": "2020-12-17T00:00:00.000Z",
    "dateUpdated": "2024-08-03T17:53:22.065Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1",
  "vulnerability-lookup:meta": {
    "epss": {
      "cve": "CVE-2021-20755",
      "date": "2026-09-21",
      "epss": "0.00909",
      "percentile": "0.57912"
    },
    "nvd": {
      "cve": {
        "configurations": [
          {
            "nodes": [
              {
                "cpeMatch": [
                  {
                    "criteria": "cpe:2.3:a:cybozu:garoon:*:*:*:*:*:*:*:*",
                    "matchCriteriaId": "03A6CB29-0A47-4D48-BCE8-F52C736CFF6B",
                    "versionEndIncluding": "5.0.2",
                    "versionStartIncluding": "4.0.0",
                    "vulnerable": true
                  }
                ],
                "negate": false,
                "operator": "OR"
              }
            ]
          }
        ],
        "cveTags": [],
        "descriptions": [
          {
            "lang": "en",
            "value": "Viewing restrictions bypass vulnerability in Portal of Cybozu Garoon 4.0.0 to 5.0.2 allows a remote authenticated attacker to obtain the data of Portal without the viewing privilege."
          },
          {
            "lang": "es",
            "value": "Una vulnerabilidad de omisi\u00f3n de restricciones de visualizaci\u00f3n en Portal de Cybozu Garoon versiones 4.0.0 hasta 5.0.2, permite a un atacante autenticado remoto obtener los datos de Portal sin el privilegio de visualizaci\u00f3n."
          }
        ],
        "id": "CVE-2021-20755",
        "lastModified": "2024-11-21T05:47:08.197",
        "metrics": {
          "cvssMetricV2": [
            {
              "acInsufInfo": false,
              "baseSeverity": "MEDIUM",
              "cvssData": {
                "accessComplexity": "LOW",
                "accessVector": "NETWORK",
                "authentication": "SINGLE",
                "availabilityImpact": "NONE",
                "baseScore": 4.0,
                "confidentialityImpact": "PARTIAL",
                "integrityImpact": "NONE",
                "vectorString": "AV:N/AC:L/Au:S/C:P/I:N/A:N",
                "version": "2.0"
              },
              "exploitabilityScore": 8.0,
              "impactScore": 2.9,
              "obtainAllPrivilege": false,
              "obtainOtherPrivilege": false,
              "obtainUserPrivilege": false,
              "source": "nvd@nist.gov",
              "type": "Primary",
              "userInteractionRequired": false
            }
          ],
          "cvssMetricV31": [
            {
              "cvssData": {
                "attackComplexity": "LOW",
                "attackVector": "NETWORK",
                "availabilityImpact": "NONE",
                "baseScore": 4.3,
                "baseSeverity": "MEDIUM",
                "confidentialityImpact": "LOW",
                "integrityImpact": "NONE",
                "privilegesRequired": "LOW",
                "scope": "UNCHANGED",
                "userInteraction": "NONE",
                "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N",
                "version": "3.1"
              },
              "exploitabilityScore": 2.8,
              "impactScore": 1.4,
              "source": "nvd@nist.gov",
              "type": "Primary"
            }
          ]
        },
        "published": "2021-08-18T06:15:06.633",
        "references": [
          {
            "source": "vultures@jpcert.or.jp",
            "tags": [
              "Vendor Advisory"
            ],
            "url": "https://cs.cybozu.co.jp/2021/007206.html"
          },
          {
            "source": "vultures@jpcert.or.jp",
            "tags": [
              "Third Party Advisory"
            ],
            "url": "https://jvn.jp/en/jp/JVN54794245/index.html"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "tags": [
              "Vendor Advisory"
            ],
            "url": "https://cs.cybozu.co.jp/2021/007206.html"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "tags": [
              "Third Party Advisory"
            ],
            "url": "https://jvn.jp/en/jp/JVN54794245/index.html"
          }
        ],
        "sourceIdentifier": "vultures@jpcert.or.jp",
        "vulnStatus": "Modified",
        "weaknesses": [
          {
            "description": [
              {
                "lang": "en",
                "value": "NVD-CWE-Other"
              }
            ],
            "source": "nvd@nist.gov",
            "type": "Primary"
          }
        ]
      }
    },
    "redhat_vex": {
      "current_release_date": "2026-03-27T15:00:18+00:00",
      "cve": "CVE-2021-20755",
      "id": "CVE-2021-20755",
      "initial_release_date": "2021-01-01T00:00:00+00:00",
      "product_status:known_not_affected": "1",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "CVE-2021-20755",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2021/cve-2021-20755.json",
      "version": "3"
    }
  }
}



Log in or create an account to share your comment.




Tags
Taxonomy of the tags.





Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

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.


Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.