var-202102-0337
Vulnerability from variot

This vulnerability allows network-adjacent attackers to bypass authentication on affected installations of NETGEAR R6020, R6080, R6120, R6220, R6260, R6700v2, R6800, R6900v2, R7450, JNR3210, WNR2020, Nighthawk AC2100, and Nighthawk AC2400 routers. Authentication is not required to exploit this vulnerability. The specific flaw exists within the mini_httpd service, which listens on TCP port 80 by default. The issue results from incorrect string matching logic when accessing protected pages. An attacker can leverage this in conjunction with other vulnerabilities to execute code in the context of root. Was ZDI-CAN-11355. Zero Day Initiative To this vulnerability ZDI-CAN-11355 Was numbered.Information is obtained, information is tampered with, and service is disrupted (DoS) It may be put into a state

Show details on source website


{
  "affected_products": {
    "_id": null,
    "data": [
      {
        "_id": null,
        "model": "r6230",
        "scope": "lt",
        "trust": 1.0,
        "vendor": "netgear",
        "version": "1.1.0.104"
      },
      {
        "_id": null,
        "model": "r6020",
        "scope": "lt",
        "trust": 1.0,
        "vendor": "netgear",
        "version": "1.0.0.48"
      },
      {
        "_id": null,
        "model": "r7450",
        "scope": "lt",
        "trust": 1.0,
        "vendor": "netgear",
        "version": "1.2.0.76"
      },
      {
        "_id": null,
        "model": "r6850",
        "scope": "lt",
        "trust": 1.0,
        "vendor": "netgear",
        "version": "1.1.0.78"
      },
      {
        "_id": null,
        "model": "ac2600",
        "scope": "lt",
        "trust": 1.0,
        "vendor": "netgear",
        "version": "1.2.0.76"
      },
      {
        "_id": null,
        "model": "ac2400",
        "scope": "lt",
        "trust": 1.0,
        "vendor": "netgear",
        "version": "1.2.0.76"
      },
      {
        "_id": null,
        "model": "r7200",
        "scope": "lt",
        "trust": 1.0,
        "vendor": "netgear",
        "version": "1.2.0.76"
      },
      {
        "_id": null,
        "model": "ac2100",
        "scope": "lt",
        "trust": 1.0,
        "vendor": "netgear",
        "version": "1.2.0.76"
      },
      {
        "_id": null,
        "model": "r6080",
        "scope": "lt",
        "trust": 1.0,
        "vendor": "netgear",
        "version": "1.0.0.48"
      },
      {
        "_id": null,
        "model": "r6330",
        "scope": "lt",
        "trust": 1.0,
        "vendor": "netgear",
        "version": "1.1.0.78"
      },
      {
        "_id": null,
        "model": "r6700",
        "scope": "lt",
        "trust": 1.0,
        "vendor": "netgear",
        "version": "1.2.0.76"
      },
      {
        "_id": null,
        "model": "r7400",
        "scope": "lt",
        "trust": 1.0,
        "vendor": "netgear",
        "version": "1.2.0.76"
      },
      {
        "_id": null,
        "model": "r6900",
        "scope": "lt",
        "trust": 1.0,
        "vendor": "netgear",
        "version": "1.2.0.76"
      },
      {
        "_id": null,
        "model": "r6220",
        "scope": "lt",
        "trust": 1.0,
        "vendor": "netgear",
        "version": "1.1.0.104"
      },
      {
        "_id": null,
        "model": "r6800",
        "scope": "lt",
        "trust": 1.0,
        "vendor": "netgear",
        "version": "1.2.0.76"
      },
      {
        "_id": null,
        "model": "r6120",
        "scope": "lt",
        "trust": 1.0,
        "vendor": "netgear",
        "version": "1.0.0.76"
      },
      {
        "_id": null,
        "model": "r6350",
        "scope": "lt",
        "trust": 1.0,
        "vendor": "netgear",
        "version": "1.1.0.78"
      },
      {
        "_id": null,
        "model": "r6260",
        "scope": "lt",
        "trust": 1.0,
        "vendor": "netgear",
        "version": "1.1.0.78"
      },
      {
        "_id": null,
        "model": "r7350",
        "scope": "lt",
        "trust": 1.0,
        "vendor": "netgear",
        "version": "1.2.0.76"
      },
      {
        "_id": null,
        "model": "ac2600",
        "scope": null,
        "trust": 0.8,
        "vendor": "\u30cd\u30c3\u30c8\u30ae\u30a2",
        "version": null
      },
      {
        "_id": null,
        "model": "r7400",
        "scope": null,
        "trust": 0.8,
        "vendor": "\u30cd\u30c3\u30c8\u30ae\u30a2",
        "version": null
      },
      {
        "_id": null,
        "model": "r7350",
        "scope": null,
        "trust": 0.8,
        "vendor": "\u30cd\u30c3\u30c8\u30ae\u30a2",
        "version": null
      },
      {
        "_id": null,
        "model": "r7200",
        "scope": null,
        "trust": 0.8,
        "vendor": "\u30cd\u30c3\u30c8\u30ae\u30a2",
        "version": null
      },
      {
        "_id": null,
        "model": "ac2100",
        "scope": null,
        "trust": 0.8,
        "vendor": "\u30cd\u30c3\u30c8\u30ae\u30a2",
        "version": null
      },
      {
        "_id": null,
        "model": "r6800",
        "scope": null,
        "trust": 0.8,
        "vendor": "\u30cd\u30c3\u30c8\u30ae\u30a2",
        "version": null
      },
      {
        "_id": null,
        "model": "r7450",
        "scope": null,
        "trust": 0.8,
        "vendor": "\u30cd\u30c3\u30c8\u30ae\u30a2",
        "version": null
      },
      {
        "_id": null,
        "model": "r6700",
        "scope": null,
        "trust": 0.8,
        "vendor": "\u30cd\u30c3\u30c8\u30ae\u30a2",
        "version": null
      },
      {
        "_id": null,
        "model": "ac2400",
        "scope": null,
        "trust": 0.8,
        "vendor": "\u30cd\u30c3\u30c8\u30ae\u30a2",
        "version": null
      },
      {
        "_id": null,
        "model": "r6900",
        "scope": null,
        "trust": 0.8,
        "vendor": "\u30cd\u30c3\u30c8\u30ae\u30a2",
        "version": null
      },
      {
        "_id": null,
        "model": "multiple routers",
        "scope": null,
        "trust": 0.7,
        "vendor": "netgear",
        "version": null
      }
    ],
    "sources": [
      {
        "db": "ZDI",
        "id": "ZDI-20-1451"
      },
      {
        "db": "JVNDB",
        "id": "JVNDB-2020-015990"
      },
      {
        "db": "NVD",
        "id": "CVE-2020-27866"
      }
    ]
  },
  "credits": {
    "_id": null,
    "data": "1sd3d of Viettel Cyber Security",
    "sources": [
      {
        "db": "ZDI",
        "id": "ZDI-20-1451"
      }
    ],
    "trust": 0.7
  },
  "cve": "CVE-2020-27866",
  "cvss": {
    "_id": null,
    "data": [
      {
        "cvssV2": [
          {
            "accessComplexity": "LOW",
            "accessVector": "ADJACENT_NETWORK",
            "authentication": "NONE",
            "author": "nvd@nist.gov",
            "availabilityImpact": "COMPLETE",
            "baseScore": 8.3,
            "confidentialityImpact": "COMPLETE",
            "exploitabilityScore": 6.5,
            "id": "CVE-2020-27866",
            "impactScore": 10.0,
            "integrityImpact": "COMPLETE",
            "severity": "HIGH",
            "trust": 1.9,
            "vectorString": "AV:A/AC:L/Au:N/C:C/I:C/A:C",
            "version": "2.0"
          }
        ],
        "cvssV3": [
          {
            "attackComplexity": "LOW",
            "attackVector": "ADJACENT",
            "author": "zdi-disclosures@trendmicro.com",
            "availabilityImpact": "HIGH",
            "baseScore": 8.8,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "HIGH",
            "exploitabilityScore": 2.8,
            "id": "CVE-2020-27866",
            "impactScore": 5.9,
            "integrityImpact": "HIGH",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "trust": 1.8,
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
            "version": "3.0"
          },
          {
            "attackComplexity": "LOW",
            "attackVector": "ADJACENT",
            "author": "nvd@nist.gov",
            "availabilityImpact": "HIGH",
            "baseScore": 8.8,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "HIGH",
            "exploitabilityScore": 2.8,
            "id": "CVE-2020-27866",
            "impactScore": 5.9,
            "integrityImpact": "HIGH",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "trust": 1.0,
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
            "version": "3.1"
          },
          {
            "attackComplexity": "LOW",
            "attackVector": "ADJACENT",
            "author": "ZDI",
            "availabilityImpact": "HIGH",
            "baseScore": 8.8,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "HIGH",
            "exploitabilityScore": 2.8,
            "id": "CVE-2020-27866",
            "impactScore": 5.9,
            "integrityImpact": "HIGH",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "trust": 0.7,
            "userInteraction": "NONE",
            "vectorString": "AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
            "version": "3.0"
          }
        ],
        "severity": [
          {
            "author": "nvd@nist.gov",
            "id": "CVE-2020-27866",
            "trust": 1.0,
            "value": "HIGH"
          },
          {
            "author": "zdi-disclosures@trendmicro.com",
            "id": "CVE-2020-27866",
            "trust": 1.0,
            "value": "HIGH"
          },
          {
            "author": "NVD",
            "id": "CVE-2020-27866",
            "trust": 0.8,
            "value": "High"
          },
          {
            "author": "ZDI",
            "id": "CVE-2020-27866",
            "trust": 0.7,
            "value": "HIGH"
          },
          {
            "author": "CNNVD",
            "id": "CNNVD-202102-1092",
            "trust": 0.6,
            "value": "HIGH"
          },
          {
            "author": "VULMON",
            "id": "CVE-2020-27866",
            "trust": 0.1,
            "value": "HIGH"
          }
        ]
      }
    ],
    "sources": [
      {
        "db": "ZDI",
        "id": "ZDI-20-1451"
      },
      {
        "db": "VULMON",
        "id": "CVE-2020-27866"
      },
      {
        "db": "JVNDB",
        "id": "JVNDB-2020-015990"
      },
      {
        "db": "CNNVD",
        "id": "CNNVD-202102-1092"
      },
      {
        "db": "NVD",
        "id": "CVE-2020-27866"
      },
      {
        "db": "NVD",
        "id": "CVE-2020-27866"
      }
    ]
  },
  "description": {
    "_id": null,
    "data": "This vulnerability allows network-adjacent attackers to bypass authentication on affected installations of NETGEAR R6020, R6080, R6120, R6220, R6260, R6700v2, R6800, R6900v2, R7450, JNR3210, WNR2020, Nighthawk AC2100, and Nighthawk AC2400 routers. Authentication is not required to exploit this vulnerability. The specific flaw exists within the mini_httpd service, which listens on TCP port 80 by default. The issue results from incorrect string matching logic when accessing protected pages. An attacker can leverage this in conjunction with other vulnerabilities to execute code in the context of root. Was ZDI-CAN-11355. Zero Day Initiative To this vulnerability ZDI-CAN-11355 Was numbered.Information is obtained, information is tampered with, and service is disrupted (DoS) It may be put into a state",
    "sources": [
      {
        "db": "NVD",
        "id": "CVE-2020-27866"
      },
      {
        "db": "JVNDB",
        "id": "JVNDB-2020-015990"
      },
      {
        "db": "ZDI",
        "id": "ZDI-20-1451"
      },
      {
        "db": "VULMON",
        "id": "CVE-2020-27866"
      }
    ],
    "trust": 2.34
  },
  "external_ids": {
    "_id": null,
    "data": [
      {
        "db": "NVD",
        "id": "CVE-2020-27866",
        "trust": 3.2
      },
      {
        "db": "ZDI",
        "id": "ZDI-20-1451",
        "trust": 3.2
      },
      {
        "db": "JVNDB",
        "id": "JVNDB-2020-015990",
        "trust": 0.8
      },
      {
        "db": "ZDI_CAN",
        "id": "ZDI-CAN-11355",
        "trust": 0.7
      },
      {
        "db": "CNNVD",
        "id": "CNNVD-202102-1092",
        "trust": 0.6
      },
      {
        "db": "VULMON",
        "id": "CVE-2020-27866",
        "trust": 0.1
      }
    ],
    "sources": [
      {
        "db": "ZDI",
        "id": "ZDI-20-1451"
      },
      {
        "db": "VULMON",
        "id": "CVE-2020-27866"
      },
      {
        "db": "JVNDB",
        "id": "JVNDB-2020-015990"
      },
      {
        "db": "CNNVD",
        "id": "CNNVD-202102-1092"
      },
      {
        "db": "NVD",
        "id": "CVE-2020-27866"
      }
    ]
  },
  "id": "VAR-202102-0337",
  "iot": {
    "_id": null,
    "data": true,
    "sources": [
      {
        "db": "VARIoT devices database",
        "id": null
      }
    ],
    "trust": 0.33938984250000004
  },
  "last_update_date": "2024-11-23T23:01:08.941000Z",
  "patch": {
    "_id": null,
    "data": [
      {
        "title": "Security\u00a0Advisory\u00a0for\u00a0Password\u00a0Recovery\u00a0Vulnerabilities\u00a0on\u00a0Some\u00a0Routers",
        "trust": 1.5,
        "url": "https://kb.netgear.com/000062641/Security-Advisory-for-Password-Recovery-Vulnerabilities-on-Some-Routers"
      },
      {
        "title": "Repair measures for multiple product authorization issues",
        "trust": 0.6,
        "url": "http://www.cnnvd.org.cn/web/xxk/bdxqById.tag?id=142372"
      }
    ],
    "sources": [
      {
        "db": "ZDI",
        "id": "ZDI-20-1451"
      },
      {
        "db": "JVNDB",
        "id": "JVNDB-2020-015990"
      },
      {
        "db": "CNNVD",
        "id": "CNNVD-202102-1092"
      }
    ]
  },
  "problemtype_data": {
    "_id": null,
    "data": [
      {
        "problemtype": "CWE-288",
        "trust": 1.0
      },
      {
        "problemtype": "CWE-287",
        "trust": 1.0
      },
      {
        "problemtype": "Improper authentication (CWE-287) [NVD Evaluation ]",
        "trust": 0.8
      }
    ],
    "sources": [
      {
        "db": "JVNDB",
        "id": "JVNDB-2020-015990"
      },
      {
        "db": "NVD",
        "id": "CVE-2020-27866"
      }
    ]
  },
  "references": {
    "_id": null,
    "data": [
      {
        "trust": 2.5,
        "url": "https://www.zerodayinitiative.com/advisories/zdi-20-1451/"
      },
      {
        "trust": 2.4,
        "url": "https://kb.netgear.com/000062641/security-advisory-for-password-recovery-vulnerabilities-on-some-routers"
      },
      {
        "trust": 1.4,
        "url": "https://nvd.nist.gov/vuln/detail/cve-2020-27866"
      },
      {
        "trust": 0.1,
        "url": "https://cwe.mitre.org/data/definitions/288.html"
      },
      {
        "trust": 0.1,
        "url": "https://nvd.nist.gov"
      }
    ],
    "sources": [
      {
        "db": "ZDI",
        "id": "ZDI-20-1451"
      },
      {
        "db": "VULMON",
        "id": "CVE-2020-27866"
      },
      {
        "db": "JVNDB",
        "id": "JVNDB-2020-015990"
      },
      {
        "db": "CNNVD",
        "id": "CNNVD-202102-1092"
      },
      {
        "db": "NVD",
        "id": "CVE-2020-27866"
      }
    ]
  },
  "sources": {
    "_id": null,
    "data": [
      {
        "db": "ZDI",
        "id": "ZDI-20-1451",
        "ident": null
      },
      {
        "db": "VULMON",
        "id": "CVE-2020-27866",
        "ident": null
      },
      {
        "db": "JVNDB",
        "id": "JVNDB-2020-015990",
        "ident": null
      },
      {
        "db": "CNNVD",
        "id": "CNNVD-202102-1092",
        "ident": null
      },
      {
        "db": "NVD",
        "id": "CVE-2020-27866",
        "ident": null
      }
    ]
  },
  "sources_release_date": {
    "_id": null,
    "data": [
      {
        "date": "2020-12-18T00:00:00",
        "db": "ZDI",
        "id": "ZDI-20-1451",
        "ident": null
      },
      {
        "date": "2021-02-12T00:00:00",
        "db": "VULMON",
        "id": "CVE-2020-27866",
        "ident": null
      },
      {
        "date": "2021-10-29T00:00:00",
        "db": "JVNDB",
        "id": "JVNDB-2020-015990",
        "ident": null
      },
      {
        "date": "2021-02-11T00:00:00",
        "db": "CNNVD",
        "id": "CNNVD-202102-1092",
        "ident": null
      },
      {
        "date": "2021-02-12T00:15:12.877000",
        "db": "NVD",
        "id": "CVE-2020-27866",
        "ident": null
      }
    ]
  },
  "sources_update_date": {
    "_id": null,
    "data": [
      {
        "date": "2020-12-18T00:00:00",
        "db": "ZDI",
        "id": "ZDI-20-1451",
        "ident": null
      },
      {
        "date": "2021-03-26T00:00:00",
        "db": "VULMON",
        "id": "CVE-2020-27866",
        "ident": null
      },
      {
        "date": "2021-10-29T09:02:00",
        "db": "JVNDB",
        "id": "JVNDB-2020-015990",
        "ident": null
      },
      {
        "date": "2021-08-16T00:00:00",
        "db": "CNNVD",
        "id": "CNNVD-202102-1092",
        "ident": null
      },
      {
        "date": "2024-11-21T05:21:57.740000",
        "db": "NVD",
        "id": "CVE-2020-27866",
        "ident": null
      }
    ]
  },
  "threat_type": {
    "_id": null,
    "data": "remote or local",
    "sources": [
      {
        "db": "CNNVD",
        "id": "CNNVD-202102-1092"
      }
    ],
    "trust": 0.6
  },
  "title": {
    "_id": null,
    "data": "plural \u00a0NETGEAR\u00a0 Product authentication vulnerabilities",
    "sources": [
      {
        "db": "JVNDB",
        "id": "JVNDB-2020-015990"
      }
    ],
    "trust": 0.8
  },
  "type": {
    "_id": null,
    "data": "authorization issue",
    "sources": [
      {
        "db": "CNNVD",
        "id": "CNNVD-202102-1092"
      }
    ],
    "trust": 0.6
  }
}


Log in or create an account to share your comment.




Tags
Taxonomy of the tags.


Loading…

Loading…

Loading…

Sightings

Author Source Type Date

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
  • Confirmed: The vulnerability is confirmed from an analyst perspective.
  • Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
  • Patched: This vulnerability was successfully patched by the user reporting the sighting.
  • Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
  • Not confirmed: The user expresses doubt about the veracity of the vulnerability.
  • Not patched: This vulnerability was not successfully patched by the user reporting the sighting.