GCVE Workshop - 22 September 2026 (14:00-18:00), Luxembourg Before The Vulnopticon Conference - Registration

VAR-202104-1174

Vulnerability from variot - Updated: 2023-12-18 12:55

Externally controlled reference to a resource in another sphere in quarantine functionality in Synology Antivirus Essential before 1.4.8-2801 allows remote authenticated users to obtain privilege via unspecified vectors. Synology Antivirus Essential Exists in a vulnerability in externally controllable references to resources in another region.Information is obtained, information is tampered with, and service is disrupted (DoS) It may be put into a state. Synology Antivirus Essential is an application software of China Synology Company. A free and easy-to-use software package to protect your Synology NAS and files from viruses

Show details on source website

{
  "@context": {
    "@vocab": "https://www.variotdbs.pl/ref/VARIoTentry#",
    "affected_products": {
      "@id": "https://www.variotdbs.pl/ref/affected_products"
    },
    "configurations": {
      "@id": "https://www.variotdbs.pl/ref/configurations"
    },
    "credits": {
      "@id": "https://www.variotdbs.pl/ref/credits"
    },
    "cvss": {
      "@id": "https://www.variotdbs.pl/ref/cvss/"
    },
    "description": {
      "@id": "https://www.variotdbs.pl/ref/description/"
    },
    "exploit_availability": {
      "@id": "https://www.variotdbs.pl/ref/exploit_availability/"
    },
    "external_ids": {
      "@id": "https://www.variotdbs.pl/ref/external_ids/"
    },
    "iot": {
      "@id": "https://www.variotdbs.pl/ref/iot/"
    },
    "iot_taxonomy": {
      "@id": "https://www.variotdbs.pl/ref/iot_taxonomy/"
    },
    "patch": {
      "@id": "https://www.variotdbs.pl/ref/patch/"
    },
    "problemtype_data": {
      "@id": "https://www.variotdbs.pl/ref/problemtype_data/"
    },
    "references": {
      "@id": "https://www.variotdbs.pl/ref/references/"
    },
    "sources": {
      "@id": "https://www.variotdbs.pl/ref/sources/"
    },
    "sources_release_date": {
      "@id": "https://www.variotdbs.pl/ref/sources_release_date/"
    },
    "sources_update_date": {
      "@id": "https://www.variotdbs.pl/ref/sources_update_date/"
    },
    "threat_type": {
      "@id": "https://www.variotdbs.pl/ref/threat_type/"
    },
    "title": {
      "@id": "https://www.variotdbs.pl/ref/title/"
    },
    "type": {
      "@id": "https://www.variotdbs.pl/ref/type/"
    }
  },
  "@id": "https://www.variotdbs.pl/vuln/VAR-202104-1174",
  "affected_products": {
    "@context": {
      "@vocab": "https://www.variotdbs.pl/ref/affected_products#",
      "data": {
        "@container": "@list"
      },
      "sources": {
        "@container": "@list",
        "@context": {
          "@vocab": "https://www.variotdbs.pl/ref/sources#"
        },
        "@id": "https://www.variotdbs.pl/ref/sources"
      }
    },
    "data": [
      {
        "model": "antivirus essential",
        "scope": "lt",
        "trust": 1.0,
        "vendor": "synology",
        "version": "1.4.8-2801"
      },
      {
        "model": "antivirus essential",
        "scope": "eq",
        "trust": 0.8,
        "vendor": "synology",
        "version": "1.4.8-2801"
      },
      {
        "model": "antivirus essential",
        "scope": "eq",
        "trust": 0.8,
        "vendor": "synology",
        "version": null
      }
    ],
    "sources": [
      {
        "db": "JVNDB",
        "id": "JVNDB-2021-006545"
      },
      {
        "db": "NVD",
        "id": "CVE-2021-27648"
      }
    ]
  },
  "configurations": {
    "@context": {
      "@vocab": "https://www.variotdbs.pl/ref/configurations#",
      "children": {
        "@container": "@list"
      },
      "cpe_match": {
        "@container": "@list"
      },
      "data": {
        "@container": "@list"
      },
      "nodes": {
        "@container": "@list"
      }
    },
    "data": [
      {
        "CVE_data_version": "4.0",
        "nodes": [
          {
            "children": [],
            "cpe_match": [
              {
                "cpe23Uri": "cpe:2.3:a:synology:antivirus_essential:*:*:*:*:*:*:*:*",
                "cpe_name": [],
                "versionEndExcluding": "1.4.8-2801",
                "vulnerable": true
              }
            ],
            "operator": "OR"
          }
        ]
      }
    ],
    "sources": [
      {
        "db": "NVD",
        "id": "CVE-2021-27648"
      }
    ]
  },
  "cve": "CVE-2021-27648",
  "cvss": {
    "@context": {
      "cvssV2": {
        "@container": "@list",
        "@context": {
          "@vocab": "https://www.variotdbs.pl/ref/cvss/cvssV2#"
        },
        "@id": "https://www.variotdbs.pl/ref/cvss/cvssV2"
      },
      "cvssV3": {
        "@container": "@list",
        "@context": {
          "@vocab": "https://www.variotdbs.pl/ref/cvss/cvssV3#"
        },
        "@id": "https://www.variotdbs.pl/ref/cvss/cvssV3/"
      },
      "severity": {
        "@container": "@list",
        "@context": {
          "@vocab": "https://www.variotdbs.pl/cvss/severity#"
        },
        "@id": "https://www.variotdbs.pl/ref/cvss/severity"
      },
      "sources": {
        "@container": "@list",
        "@context": {
          "@vocab": "https://www.variotdbs.pl/ref/sources#"
        },
        "@id": "https://www.variotdbs.pl/ref/sources"
      }
    },
    "data": [
      {
        "cvssV2": [
          {
            "acInsufInfo": false,
            "accessComplexity": "LOW",
            "accessVector": "NETWORK",
            "authentication": "SINGLE",
            "author": "NVD",
            "availabilityImpact": "PARTIAL",
            "baseScore": 6.5,
            "confidentialityImpact": "PARTIAL",
            "exploitabilityScore": 8.0,
            "impactScore": 6.4,
            "integrityImpact": "PARTIAL",
            "obtainAllPrivilege": false,
            "obtainOtherPrivilege": false,
            "obtainUserPrivilege": false,
            "severity": "MEDIUM",
            "trust": 1.0,
            "userInteractionRequired": false,
            "vectorString": "AV:N/AC:L/Au:S/C:P/I:P/A:P",
            "version": "2.0"
          },
          {
            "acInsufInfo": null,
            "accessComplexity": "Low",
            "accessVector": "Network",
            "authentication": "Single",
            "author": "NVD",
            "availabilityImpact": "Partial",
            "baseScore": 6.5,
            "confidentialityImpact": "Partial",
            "exploitabilityScore": null,
            "id": "CVE-2021-27648",
            "impactScore": null,
            "integrityImpact": "Partial",
            "obtainAllPrivilege": null,
            "obtainOtherPrivilege": null,
            "obtainUserPrivilege": null,
            "severity": "Medium",
            "trust": 0.8,
            "userInteractionRequired": null,
            "vectorString": "AV:N/AC:L/Au:S/C:P/I:P/A:P",
            "version": "2.0"
          },
          {
            "accessComplexity": "LOW",
            "accessVector": "NETWORK",
            "authentication": "SINGLE",
            "author": "VULHUB",
            "availabilityImpact": "PARTIAL",
            "baseScore": 6.5,
            "confidentialityImpact": "PARTIAL",
            "exploitabilityScore": 8.0,
            "id": "VHN-386941",
            "impactScore": 6.4,
            "integrityImpact": "PARTIAL",
            "severity": "MEDIUM",
            "trust": 0.1,
            "vectorString": "AV:N/AC:L/AU:S/C:P/I:P/A:P",
            "version": "2.0"
          }
        ],
        "cvssV3": [
          {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "author": "NVD",
            "availabilityImpact": "HIGH",
            "baseScore": 8.8,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "HIGH",
            "exploitabilityScore": 2.8,
            "impactScore": 5.9,
            "integrityImpact": "HIGH",
            "privilegesRequired": "LOW",
            "scope": "UNCHANGED",
            "trust": 1.0,
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
            "version": "3.1"
          },
          {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "author": "security@synology.com",
            "availabilityImpact": "HIGH",
            "baseScore": 9.0,
            "baseSeverity": "CRITICAL",
            "confidentialityImpact": "HIGH",
            "exploitabilityScore": 2.3,
            "impactScore": 6.0,
            "integrityImpact": "HIGH",
            "privilegesRequired": "LOW",
            "scope": "CHANGED",
            "trust": 1.0,
            "userInteraction": "REQUIRED",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H",
            "version": "3.1"
          },
          {
            "attackComplexity": "Low",
            "attackVector": "Network",
            "author": "NVD",
            "availabilityImpact": "High",
            "baseScore": 8.8,
            "baseSeverity": "High",
            "confidentialityImpact": "High",
            "exploitabilityScore": null,
            "id": "CVE-2021-27648",
            "impactScore": null,
            "integrityImpact": "High",
            "privilegesRequired": "Low",
            "scope": "Unchanged",
            "trust": 0.8,
            "userInteraction": "None",
            "vectorString": "CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
            "version": "3.0"
          }
        ],
        "severity": [
          {
            "author": "NVD",
            "id": "CVE-2021-27648",
            "trust": 1.8,
            "value": "HIGH"
          },
          {
            "author": "security@synology.com",
            "id": "CVE-2021-27648",
            "trust": 1.0,
            "value": "CRITICAL"
          },
          {
            "author": "CNNVD",
            "id": "CNNVD-202104-2069",
            "trust": 0.6,
            "value": "HIGH"
          },
          {
            "author": "VULHUB",
            "id": "VHN-386941",
            "trust": 0.1,
            "value": "MEDIUM"
          }
        ]
      }
    ],
    "sources": [
      {
        "db": "VULHUB",
        "id": "VHN-386941"
      },
      {
        "db": "JVNDB",
        "id": "JVNDB-2021-006545"
      },
      {
        "db": "NVD",
        "id": "CVE-2021-27648"
      },
      {
        "db": "NVD",
        "id": "CVE-2021-27648"
      },
      {
        "db": "CNNVD",
        "id": "CNNVD-202104-2069"
      }
    ]
  },
  "description": {
    "@context": {
      "@vocab": "https://www.variotdbs.pl/ref/description#",
      "sources": {
        "@container": "@list",
        "@context": {
          "@vocab": "https://www.variotdbs.pl/ref/sources#"
        }
      }
    },
    "data": "Externally controlled reference to a resource in another sphere in quarantine functionality in Synology Antivirus Essential before 1.4.8-2801 allows remote authenticated users to obtain privilege via unspecified vectors. Synology Antivirus Essential Exists in a vulnerability in externally controllable references to resources in another region.Information is obtained, information is tampered with, and service is disrupted (DoS) It may be put into a state. Synology Antivirus Essential is an application software of China Synology Company. A free and easy-to-use software package to protect your Synology NAS and files from viruses",
    "sources": [
      {
        "db": "NVD",
        "id": "CVE-2021-27648"
      },
      {
        "db": "JVNDB",
        "id": "JVNDB-2021-006545"
      },
      {
        "db": "VULHUB",
        "id": "VHN-386941"
      },
      {
        "db": "VULMON",
        "id": "CVE-2021-27648"
      }
    ],
    "trust": 1.8
  },
  "external_ids": {
    "@context": {
      "@vocab": "https://www.variotdbs.pl/ref/external_ids#",
      "data": {
        "@container": "@list"
      },
      "sources": {
        "@container": "@list",
        "@context": {
          "@vocab": "https://www.variotdbs.pl/ref/sources#"
        }
      }
    },
    "data": [
      {
        "db": "NVD",
        "id": "CVE-2021-27648",
        "trust": 3.4
      },
      {
        "db": "JVNDB",
        "id": "JVNDB-2021-006545",
        "trust": 0.8
      },
      {
        "db": "CNNVD",
        "id": "CNNVD-202104-2069",
        "trust": 0.6
      },
      {
        "db": "VULHUB",
        "id": "VHN-386941",
        "trust": 0.1
      },
      {
        "db": "VULMON",
        "id": "CVE-2021-27648",
        "trust": 0.1
      }
    ],
    "sources": [
      {
        "db": "VULHUB",
        "id": "VHN-386941"
      },
      {
        "db": "VULMON",
        "id": "CVE-2021-27648"
      },
      {
        "db": "JVNDB",
        "id": "JVNDB-2021-006545"
      },
      {
        "db": "NVD",
        "id": "CVE-2021-27648"
      },
      {
        "db": "CNNVD",
        "id": "CNNVD-202104-2069"
      }
    ]
  },
  "id": "VAR-202104-1174",
  "iot": {
    "@context": {
      "@vocab": "https://www.variotdbs.pl/ref/iot#",
      "sources": {
        "@container": "@list",
        "@context": {
          "@vocab": "https://www.variotdbs.pl/ref/sources#"
        }
      }
    },
    "data": true,
    "sources": [
      {
        "db": "VULHUB",
        "id": "VHN-386941"
      }
    ],
    "trust": 0.01
  },
  "last_update_date": "2023-12-18T12:55:36.399000Z",
  "patch": {
    "@context": {
      "@vocab": "https://www.variotdbs.pl/ref/patch#",
      "data": {
        "@container": "@list"
      },
      "sources": {
        "@container": "@list",
        "@context": {
          "@vocab": "https://www.variotdbs.pl/ref/sources#"
        }
      }
    },
    "data": [
      {
        "title": "Synology-SA-21",
        "trust": 0.8,
        "url": "https://www.synology.com/security/advisory/synology_sa_21_15"
      },
      {
        "title": "Synology Antivirus Essential Security vulnerabilities",
        "trust": 0.6,
        "url": "http://www.cnnvd.org.cn/web/xxk/bdxqbyid.tag?id=150357"
      }
    ],
    "sources": [
      {
        "db": "JVNDB",
        "id": "JVNDB-2021-006545"
      },
      {
        "db": "CNNVD",
        "id": "CNNVD-202104-2069"
      }
    ]
  },
  "problemtype_data": {
    "@context": {
      "@vocab": "https://www.variotdbs.pl/ref/problemtype_data#",
      "sources": {
        "@container": "@list",
        "@context": {
          "@vocab": "https://www.variotdbs.pl/ref/sources#"
        }
      }
    },
    "data": [
      {
        "problemtype": "CWE-610",
        "trust": 1.1
      },
      {
        "problemtype": "Externally controllable reference to another region resource (CWE-610) [NVD Evaluation ]",
        "trust": 0.8
      }
    ],
    "sources": [
      {
        "db": "VULHUB",
        "id": "VHN-386941"
      },
      {
        "db": "JVNDB",
        "id": "JVNDB-2021-006545"
      },
      {
        "db": "NVD",
        "id": "CVE-2021-27648"
      }
    ]
  },
  "references": {
    "@context": {
      "@vocab": "https://www.variotdbs.pl/ref/references#",
      "data": {
        "@container": "@list"
      },
      "sources": {
        "@container": "@list",
        "@context": {
          "@vocab": "https://www.variotdbs.pl/ref/sources#"
        }
      }
    },
    "data": [
      {
        "trust": 1.8,
        "url": "https://www.synology.com/security/advisory/synology_sa_21_15"
      },
      {
        "trust": 1.4,
        "url": "https://nvd.nist.gov/vuln/detail/cve-2021-27648"
      },
      {
        "trust": 0.1,
        "url": "https://nvd.nist.gov"
      }
    ],
    "sources": [
      {
        "db": "VULHUB",
        "id": "VHN-386941"
      },
      {
        "db": "VULMON",
        "id": "CVE-2021-27648"
      },
      {
        "db": "JVNDB",
        "id": "JVNDB-2021-006545"
      },
      {
        "db": "NVD",
        "id": "CVE-2021-27648"
      },
      {
        "db": "CNNVD",
        "id": "CNNVD-202104-2069"
      }
    ]
  },
  "sources": {
    "@context": {
      "@vocab": "https://www.variotdbs.pl/ref/sources#",
      "data": {
        "@container": "@list"
      }
    },
    "data": [
      {
        "db": "VULHUB",
        "id": "VHN-386941"
      },
      {
        "db": "VULMON",
        "id": "CVE-2021-27648"
      },
      {
        "db": "JVNDB",
        "id": "JVNDB-2021-006545"
      },
      {
        "db": "NVD",
        "id": "CVE-2021-27648"
      },
      {
        "db": "CNNVD",
        "id": "CNNVD-202104-2069"
      }
    ]
  },
  "sources_release_date": {
    "@context": {
      "@vocab": "https://www.variotdbs.pl/ref/sources_release_date#",
      "data": {
        "@container": "@list"
      }
    },
    "data": [
      {
        "date": "2021-04-28T00:00:00",
        "db": "VULHUB",
        "id": "VHN-386941"
      },
      {
        "date": "2021-04-28T00:00:00",
        "db": "VULMON",
        "id": "CVE-2021-27648"
      },
      {
        "date": "2022-01-12T00:00:00",
        "db": "JVNDB",
        "id": "JVNDB-2021-006545"
      },
      {
        "date": "2021-04-28T08:15:07.690000",
        "db": "NVD",
        "id": "CVE-2021-27648"
      },
      {
        "date": "2021-04-28T00:00:00",
        "db": "CNNVD",
        "id": "CNNVD-202104-2069"
      }
    ]
  },
  "sources_update_date": {
    "@context": {
      "@vocab": "https://www.variotdbs.pl/ref/sources_update_date#",
      "data": {
        "@container": "@list"
      }
    },
    "data": [
      {
        "date": "2021-05-12T00:00:00",
        "db": "VULHUB",
        "id": "VHN-386941"
      },
      {
        "date": "2021-04-28T00:00:00",
        "db": "VULMON",
        "id": "CVE-2021-27648"
      },
      {
        "date": "2022-01-12T07:59:00",
        "db": "JVNDB",
        "id": "JVNDB-2021-006545"
      },
      {
        "date": "2021-05-12T20:12:38.097000",
        "db": "NVD",
        "id": "CVE-2021-27648"
      },
      {
        "date": "2021-05-13T00:00:00",
        "db": "CNNVD",
        "id": "CNNVD-202104-2069"
      }
    ]
  },
  "threat_type": {
    "@context": {
      "@vocab": "https://www.variotdbs.pl/ref/threat_type#",
      "sources": {
        "@container": "@list",
        "@context": {
          "@vocab": "https://www.variotdbs.pl/ref/sources#"
        }
      }
    },
    "data": "remote",
    "sources": [
      {
        "db": "CNNVD",
        "id": "CNNVD-202104-2069"
      }
    ],
    "trust": 0.6
  },
  "title": {
    "@context": {
      "@vocab": "https://www.variotdbs.pl/ref/title#",
      "sources": {
        "@container": "@list",
        "@context": {
          "@vocab": "https://www.variotdbs.pl/ref/sources#"
        }
      }
    },
    "data": "Synology\u00a0Antivirus\u00a0Essential\u00a0 Vulnerability in externally controllable reference to another area resource in",
    "sources": [
      {
        "db": "JVNDB",
        "id": "JVNDB-2021-006545"
      }
    ],
    "trust": 0.8
  },
  "type": {
    "@context": {
      "@vocab": "https://www.variotdbs.pl/ref/type#",
      "sources": {
        "@container": "@list",
        "@context": {
          "@vocab": "https://www.variotdbs.pl/ref/sources#"
        }
      }
    },
    "data": "other",
    "sources": [
      {
        "db": "CNNVD",
        "id": "CNNVD-202104-2069"
      }
    ],
    "trust": 0.6
  }
}



Log in or create an account to share your comment.




Tags
Taxonomy of the tags.


Loading…

Loading…

Loading…

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.

Loading…

Detection rules are retrieved from Rulezet.

Loading…

Loading…

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.


Loading…