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

VAR-202010-0960

Vulnerability from variot - Updated: 2023-12-18 13:51

Improper certificate validation vulnerability in OpenVPN client in Synology Router Manager (SRM) before 1.2.4-8081 allows man-in-the-middle attackers to spoof servers and obtain sensitive information via a crafted certificate. Synology Router Manager (SRM) is a software used to configure and manage Synology routers from Synology, Taiwan.

Synology Router Manager (SRM) versions prior to 1.2.4-8081 have a security vulnerability. The vulnerability stems from an inappropriate certificate verification vulnerability in the OpenVPN client

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-202010-0960",
  "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": "router manager",
        "scope": "lt",
        "trust": 1.6,
        "vendor": "synology",
        "version": "1.2.4-8081"
      },
      {
        "model": "router manager",
        "scope": "gte",
        "trust": 1.0,
        "vendor": "synology",
        "version": "1.2"
      },
      {
        "model": "router manager",
        "scope": "eq",
        "trust": 0.8,
        "vendor": "synology",
        "version": "1.2.4-8081"
      },
      {
        "model": "router manager",
        "scope": "eq",
        "trust": 0.8,
        "vendor": "synology",
        "version": null
      }
    ],
    "sources": [
      {
        "db": "CNVD",
        "id": "CNVD-2020-60451"
      },
      {
        "db": "JVNDB",
        "id": "JVNDB-2020-012924"
      },
      {
        "db": "NVD",
        "id": "CVE-2020-27649"
      }
    ]
  },
  "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:router_manager:*:*:*:*:*:*:*:*",
                "cpe_name": [],
                "versionEndExcluding": "1.2.4-8081",
                "versionStartIncluding": "1.2",
                "vulnerable": true
              }
            ],
            "operator": "OR"
          }
        ]
      }
    ],
    "sources": [
      {
        "db": "NVD",
        "id": "CVE-2020-27649"
      }
    ]
  },
  "credits": {
    "@context": {
      "@vocab": "https://www.variotdbs.pl/ref/credits#",
      "sources": {
        "@container": "@list",
        "@context": {
          "@vocab": "https://www.variotdbs.pl/ref/sources#"
        }
      }
    },
    "data": "Discovered by Claudio Bozzato of Cisco Talos.",
    "sources": [
      {
        "db": "CNNVD",
        "id": "CNNVD-202010-1642"
      }
    ],
    "trust": 0.6
  },
  "cve": "CVE-2020-27649",
  "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": "MEDIUM",
            "accessVector": "NETWORK",
            "authentication": "NONE",
            "author": "NVD",
            "availabilityImpact": "PARTIAL",
            "baseScore": 6.8,
            "confidentialityImpact": "PARTIAL",
            "exploitabilityScore": 8.6,
            "impactScore": 6.4,
            "integrityImpact": "PARTIAL",
            "obtainAllPrivilege": false,
            "obtainOtherPrivilege": false,
            "obtainUserPrivilege": false,
            "severity": "MEDIUM",
            "trust": 1.0,
            "userInteractionRequired": false,
            "vectorString": "AV:N/AC:M/Au:N/C:P/I:P/A:P",
            "version": "2.0"
          },
          {
            "acInsufInfo": null,
            "accessComplexity": "Medium",
            "accessVector": "Network",
            "authentication": "None",
            "author": "NVD",
            "availabilityImpact": "Partial",
            "baseScore": 6.8,
            "confidentialityImpact": "Partial",
            "exploitabilityScore": null,
            "id": "CVE-2020-27649",
            "impactScore": null,
            "integrityImpact": "Partial",
            "obtainAllPrivilege": null,
            "obtainOtherPrivilege": null,
            "obtainUserPrivilege": null,
            "severity": "Medium",
            "trust": 0.8,
            "userInteractionRequired": null,
            "vectorString": "AV:N/AC:M/Au:N/C:P/I:P/A:P",
            "version": "2.0"
          },
          {
            "accessComplexity": "LOW",
            "accessVector": "NETWORK",
            "authentication": "NONE",
            "author": "CNVD",
            "availabilityImpact": "COMPLETE",
            "baseScore": 10.0,
            "confidentialityImpact": "COMPLETE",
            "exploitabilityScore": 10.0,
            "id": "CNVD-2020-60451",
            "impactScore": 10.0,
            "integrityImpact": "COMPLETE",
            "severity": "HIGH",
            "trust": 0.6,
            "vectorString": "AV:N/AC:L/Au:N/C:C/I:C/A:C",
            "version": "2.0"
          },
          {
            "accessComplexity": "MEDIUM",
            "accessVector": "NETWORK",
            "authentication": "NONE",
            "author": "VULHUB",
            "availabilityImpact": "PARTIAL",
            "baseScore": 6.8,
            "confidentialityImpact": "PARTIAL",
            "exploitabilityScore": 8.6,
            "id": "VHN-371558",
            "impactScore": 6.4,
            "integrityImpact": "PARTIAL",
            "severity": "MEDIUM",
            "trust": 0.1,
            "vectorString": "AV:N/AC:M/AU:N/C:P/I:P/A:P",
            "version": "2.0"
          }
        ],
        "cvssV3": [
          {
            "attackComplexity": "HIGH",
            "attackVector": "NETWORK",
            "author": "NVD",
            "availabilityImpact": "HIGH",
            "baseScore": 9.0,
            "baseSeverity": "CRITICAL",
            "confidentialityImpact": "HIGH",
            "exploitabilityScore": 2.2,
            "impactScore": 6.0,
            "integrityImpact": "HIGH",
            "privilegesRequired": "NONE",
            "scope": "CHANGED",
            "trust": 1.0,
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H",
            "version": "3.1"
          },
          {
            "attackComplexity": "HIGH",
            "attackVector": "NETWORK",
            "author": "security@synology.com",
            "availabilityImpact": "HIGH",
            "baseScore": 8.3,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "HIGH",
            "exploitabilityScore": 1.6,
            "impactScore": 6.0,
            "integrityImpact": "HIGH",
            "privilegesRequired": "NONE",
            "scope": "CHANGED",
            "trust": 1.0,
            "userInteraction": "REQUIRED",
            "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:H",
            "version": "3.1"
          },
          {
            "attackComplexity": "High",
            "attackVector": "Network",
            "author": "NVD",
            "availabilityImpact": "High",
            "baseScore": 9.0,
            "baseSeverity": "Critical",
            "confidentialityImpact": "High",
            "exploitabilityScore": null,
            "id": "CVE-2020-27649",
            "impactScore": null,
            "integrityImpact": "High",
            "privilegesRequired": "None",
            "scope": "Changed",
            "trust": 0.8,
            "userInteraction": "None",
            "vectorString": "CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H",
            "version": "3.0"
          }
        ],
        "severity": [
          {
            "author": "NVD",
            "id": "CVE-2020-27649",
            "trust": 1.8,
            "value": "CRITICAL"
          },
          {
            "author": "security@synology.com",
            "id": "CVE-2020-27649",
            "trust": 1.0,
            "value": "HIGH"
          },
          {
            "author": "CNVD",
            "id": "CNVD-2020-60451",
            "trust": 0.6,
            "value": "HIGH"
          },
          {
            "author": "CNNVD",
            "id": "CNNVD-202010-1642",
            "trust": 0.6,
            "value": "HIGH"
          },
          {
            "author": "VULHUB",
            "id": "VHN-371558",
            "trust": 0.1,
            "value": "MEDIUM"
          }
        ]
      }
    ],
    "sources": [
      {
        "db": "CNVD",
        "id": "CNVD-2020-60451"
      },
      {
        "db": "VULHUB",
        "id": "VHN-371558"
      },
      {
        "db": "JVNDB",
        "id": "JVNDB-2020-012924"
      },
      {
        "db": "NVD",
        "id": "CVE-2020-27649"
      },
      {
        "db": "NVD",
        "id": "CVE-2020-27649"
      },
      {
        "db": "CNNVD",
        "id": "CNNVD-202010-1642"
      }
    ]
  },
  "description": {
    "@context": {
      "@vocab": "https://www.variotdbs.pl/ref/description#",
      "sources": {
        "@container": "@list",
        "@context": {
          "@vocab": "https://www.variotdbs.pl/ref/sources#"
        }
      }
    },
    "data": "Improper certificate validation vulnerability in OpenVPN client in Synology Router Manager (SRM) before 1.2.4-8081 allows man-in-the-middle attackers to spoof servers and obtain sensitive information via a crafted certificate. Synology Router Manager (SRM) is a software used to configure and manage Synology routers from Synology, Taiwan. \n\r\n\r\nSynology Router Manager (SRM) versions prior to 1.2.4-8081 have a security vulnerability. The vulnerability stems from an inappropriate certificate verification vulnerability in the OpenVPN client",
    "sources": [
      {
        "db": "NVD",
        "id": "CVE-2020-27649"
      },
      {
        "db": "JVNDB",
        "id": "JVNDB-2020-012924"
      },
      {
        "db": "CNVD",
        "id": "CNVD-2020-60451"
      },
      {
        "db": "VULHUB",
        "id": "VHN-371558"
      },
      {
        "db": "VULMON",
        "id": "CVE-2020-27649"
      }
    ],
    "trust": 2.34
  },
  "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-2020-27649",
        "trust": 3.2
      },
      {
        "db": "TALOS",
        "id": "TALOS-2020-1058",
        "trust": 1.8
      },
      {
        "db": "JVNDB",
        "id": "JVNDB-2020-012924",
        "trust": 0.8
      },
      {
        "db": "CNVD",
        "id": "CNVD-2020-60451",
        "trust": 0.7
      },
      {
        "db": "CNNVD",
        "id": "CNNVD-202010-1642",
        "trust": 0.7
      },
      {
        "db": "VULHUB",
        "id": "VHN-371558",
        "trust": 0.1
      },
      {
        "db": "VULMON",
        "id": "CVE-2020-27649",
        "trust": 0.1
      }
    ],
    "sources": [
      {
        "db": "CNVD",
        "id": "CNVD-2020-60451"
      },
      {
        "db": "VULHUB",
        "id": "VHN-371558"
      },
      {
        "db": "VULMON",
        "id": "CVE-2020-27649"
      },
      {
        "db": "JVNDB",
        "id": "JVNDB-2020-012924"
      },
      {
        "db": "NVD",
        "id": "CVE-2020-27649"
      },
      {
        "db": "CNNVD",
        "id": "CNNVD-202010-1642"
      }
    ]
  },
  "id": "VAR-202010-0960",
  "iot": {
    "@context": {
      "@vocab": "https://www.variotdbs.pl/ref/iot#",
      "sources": {
        "@container": "@list",
        "@context": {
          "@vocab": "https://www.variotdbs.pl/ref/sources#"
        }
      }
    },
    "data": true,
    "sources": [
      {
        "db": "CNVD",
        "id": "CNVD-2020-60451"
      },
      {
        "db": "VULHUB",
        "id": "VHN-371558"
      }
    ],
    "trust": 0.06999999999999999
  },
  "iot_taxonomy": {
    "@context": {
      "@vocab": "https://www.variotdbs.pl/ref/iot_taxonomy#",
      "data": {
        "@container": "@list"
      },
      "sources": {
        "@container": "@list",
        "@context": {
          "@vocab": "https://www.variotdbs.pl/ref/sources#"
        }
      }
    },
    "data": [
      {
        "category": [
          "Network device"
        ],
        "sub_category": null,
        "trust": 0.6
      }
    ],
    "sources": [
      {
        "db": "CNVD",
        "id": "CNVD-2020-60451"
      }
    ]
  },
  "last_update_date": "2023-12-18T13:51:45.234000Z",
  "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-20",
        "trust": 0.8,
        "url": "https://www.synology.com/security/advisory/synology_sa_20_14"
      },
      {
        "title": "Patch for Synology Router Manager trust management issue vulnerability",
        "trust": 0.6,
        "url": "https://www.cnvd.org.cn/patchinfo/show/238570"
      },
      {
        "title": "Synology Router Manager Repair measures for trust management problem vulnerabilities",
        "trust": 0.6,
        "url": "http://www.cnnvd.org.cn/web/xxk/bdxqbyid.tag?id=131799"
      }
    ],
    "sources": [
      {
        "db": "CNVD",
        "id": "CNVD-2020-60451"
      },
      {
        "db": "JVNDB",
        "id": "JVNDB-2020-012924"
      },
      {
        "db": "CNNVD",
        "id": "CNNVD-202010-1642"
      }
    ]
  },
  "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-295",
        "trust": 1.1
      },
      {
        "problemtype": "Bad certificate verification (CWE-295) [NVD Evaluation ]",
        "trust": 0.8
      }
    ],
    "sources": [
      {
        "db": "VULHUB",
        "id": "VHN-371558"
      },
      {
        "db": "JVNDB",
        "id": "JVNDB-2020-012924"
      },
      {
        "db": "NVD",
        "id": "CVE-2020-27649"
      }
    ]
  },
  "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": 2.0,
        "url": "https://nvd.nist.gov/vuln/detail/cve-2020-27649"
      },
      {
        "trust": 1.8,
        "url": "https://www.synology.com/security/advisory/synology_sa_20_14"
      },
      {
        "trust": 1.2,
        "url": "https://www.talosintelligence.com/vulnerability_reports/talos-2020-1058"
      },
      {
        "trust": 1.2,
        "url": "https://talosintelligence.com/vulnerability_reports/talos-2020-1058"
      },
      {
        "trust": 0.1,
        "url": "https://nvd.nist.gov"
      }
    ],
    "sources": [
      {
        "db": "CNVD",
        "id": "CNVD-2020-60451"
      },
      {
        "db": "VULHUB",
        "id": "VHN-371558"
      },
      {
        "db": "VULMON",
        "id": "CVE-2020-27649"
      },
      {
        "db": "JVNDB",
        "id": "JVNDB-2020-012924"
      },
      {
        "db": "NVD",
        "id": "CVE-2020-27649"
      },
      {
        "db": "CNNVD",
        "id": "CNNVD-202010-1642"
      }
    ]
  },
  "sources": {
    "@context": {
      "@vocab": "https://www.variotdbs.pl/ref/sources#",
      "data": {
        "@container": "@list"
      }
    },
    "data": [
      {
        "db": "CNVD",
        "id": "CNVD-2020-60451"
      },
      {
        "db": "VULHUB",
        "id": "VHN-371558"
      },
      {
        "db": "VULMON",
        "id": "CVE-2020-27649"
      },
      {
        "db": "JVNDB",
        "id": "JVNDB-2020-012924"
      },
      {
        "db": "NVD",
        "id": "CVE-2020-27649"
      },
      {
        "db": "CNNVD",
        "id": "CNNVD-202010-1642"
      }
    ]
  },
  "sources_release_date": {
    "@context": {
      "@vocab": "https://www.variotdbs.pl/ref/sources_release_date#",
      "data": {
        "@container": "@list"
      }
    },
    "data": [
      {
        "date": "2020-11-04T00:00:00",
        "db": "CNVD",
        "id": "CNVD-2020-60451"
      },
      {
        "date": "2020-10-29T00:00:00",
        "db": "VULHUB",
        "id": "VHN-371558"
      },
      {
        "date": "2020-10-29T00:00:00",
        "db": "VULMON",
        "id": "CVE-2020-27649"
      },
      {
        "date": "2021-06-15T00:00:00",
        "db": "JVNDB",
        "id": "JVNDB-2020-012924"
      },
      {
        "date": "2020-10-29T09:15:12.717000",
        "db": "NVD",
        "id": "CVE-2020-27649"
      },
      {
        "date": "2020-10-29T00:00:00",
        "db": "CNNVD",
        "id": "CNNVD-202010-1642"
      }
    ]
  },
  "sources_update_date": {
    "@context": {
      "@vocab": "https://www.variotdbs.pl/ref/sources_update_date#",
      "data": {
        "@container": "@list"
      }
    },
    "data": [
      {
        "date": "2020-11-04T00:00:00",
        "db": "CNVD",
        "id": "CNVD-2020-60451"
      },
      {
        "date": "2020-11-09T00:00:00",
        "db": "VULHUB",
        "id": "VHN-371558"
      },
      {
        "date": "2020-11-09T00:00:00",
        "db": "VULMON",
        "id": "CVE-2020-27649"
      },
      {
        "date": "2021-06-15T06:01:00",
        "db": "JVNDB",
        "id": "JVNDB-2020-012924"
      },
      {
        "date": "2020-11-09T14:59:03.710000",
        "db": "NVD",
        "id": "CVE-2020-27649"
      },
      {
        "date": "2020-10-30T00:00:00",
        "db": "CNNVD",
        "id": "CNNVD-202010-1642"
      }
    ]
  },
  "title": {
    "@context": {
      "@vocab": "https://www.variotdbs.pl/ref/title#",
      "sources": {
        "@container": "@list",
        "@context": {
          "@vocab": "https://www.variotdbs.pl/ref/sources#"
        }
      }
    },
    "data": "Synology Router Manager trust management issue vulnerability",
    "sources": [
      {
        "db": "CNVD",
        "id": "CNVD-2020-60451"
      },
      {
        "db": "CNNVD",
        "id": "CNNVD-202010-1642"
      }
    ],
    "trust": 1.2
  },
  "type": {
    "@context": {
      "@vocab": "https://www.variotdbs.pl/ref/type#",
      "sources": {
        "@container": "@list",
        "@context": {
          "@vocab": "https://www.variotdbs.pl/ref/sources#"
        }
      }
    },
    "data": "trust management problem",
    "sources": [
      {
        "db": "CNNVD",
        "id": "CNNVD-202010-1642"
      }
    ],
    "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…