{
  "id": "CVE-2016-7431",
  "sourceIdentifier": "cve@mitre.org",
  "published": "2017-01-13T16:59:00.467",
  "lastModified": "2021-07-12T17:15:08.380",
  "vulnStatus": "Modified",
  "descriptions": [
    {
      "lang": "en",
      "value": "NTP before 4.2.8p9 allows remote attackers to bypass the origin timestamp protection mechanism via an origin timestamp of zero.  NOTE: this vulnerability exists because of a CVE-2015-8138 regression."
    },
    {
      "lang": "es",
      "value": "NTP en versiones anteriores a 4.2.8p9 permite a atacantes remotos eludir el mecanismo de protecci\u00f3n de la marca de tiempo de origen a trav\u00e9s de una marca de tiempo de origen de cero. NOTA: esta vulnerabilidad existe debido a una regresi\u00f3n de CVE-2015-8138."
    }
  ],
  "metrics": {
    "cvssMetricV30": [
      {
        "source": "nvd@nist.gov",
        "type": "Primary",
        "cvssData": {
          "version": "3.0",
          "vectorString": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N",
          "attackVector": "NETWORK",
          "attackComplexity": "LOW",
          "privilegesRequired": "NONE",
          "userInteraction": "NONE",
          "scope": "UNCHANGED",
          "confidentialityImpact": "NONE",
          "integrityImpact": "LOW",
          "availabilityImpact": "NONE",
          "baseScore": 5.3,
          "baseSeverity": "MEDIUM"
        },
        "exploitabilityScore": 3.9,
        "impactScore": 1.4
      }
    ],
    "cvssMetricV2": [
      {
        "source": "nvd@nist.gov",
        "type": "Primary",
        "cvssData": {
          "version": "2.0",
          "vectorString": "AV:N/AC:L/Au:N/C:N/I:P/A:N",
          "accessVector": "NETWORK",
          "accessComplexity": "LOW",
          "authentication": "NONE",
          "confidentialityImpact": "NONE",
          "integrityImpact": "PARTIAL",
          "availabilityImpact": "NONE",
          "baseScore": 5.0
        },
        "baseSeverity": "MEDIUM",
        "exploitabilityScore": 10.0,
        "impactScore": 2.9,
        "acInsufInfo": false,
        "obtainAllPrivilege": false,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": false
      }
    ]
  },
  "weaknesses": [
    {
      "source": "nvd@nist.gov",
      "type": "Primary",
      "description": [
        {
          "lang": "en",
          "value": "CWE-20"
        }
      ]
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "operator": "OR",
          "negate": false,
          "cpeMatch": [
            {
              "vulnerable": true,
              "criteria": "cpe:2.3:a:ntp:ntp:4.2.8:p8:*:*:*:*:*:*",
              "matchCriteriaId": "F12E4CF5-536C-416B-AD8D-6AE7CBE22C71"
            }
          ]
        }
      ]
    }
  ],
  "references": [
    {
      "url": "http://lists.opensuse.org/opensuse-updates/2016-12/msg00153.html",
      "source": "cve@mitre.org"
    },
    {
      "url": "http://nwtime.org/ntp428p9_release/",
      "source": "cve@mitre.org",
      "tags": [
        "Release Notes",
        "Vendor Advisory"
      ]
    },
    {
      "url": "http://packetstormsecurity.com/files/140240/FreeBSD-Security-Advisory-FreeBSD-SA-16.39.ntp.html",
      "source": "cve@mitre.org"
    },
    {
      "url": "http://support.ntp.org/bin/view/Main/NtpBug3102",
      "source": "cve@mitre.org",
      "tags": [
        "Issue Tracking",
        "Mitigation",
        "Vendor Advisory"
      ]
    },
    {
      "url": "http://support.ntp.org/bin/view/Main/SecurityNotice#Recent_Vulnerabilities",
      "source": "cve@mitre.org",
      "tags": [
        "Vendor Advisory"
      ]
    },
    {
      "url": "http://www.huawei.com/en/psirt/security-advisories/huawei-sa-20171129-01-ntpd-en",
      "source": "cve@mitre.org"
    },
    {
      "url": "http://www.oracle.com/technetwork/security-advisory/cpuoct2017-3236626.html",
      "source": "cve@mitre.org"
    },
    {
      "url": "http://www.securityfocus.com/archive/1/539955/100/0/threaded",
      "source": "cve@mitre.org"
    },
    {
      "url": "http://www.securityfocus.com/archive/1/540254/100/0/threaded",
      "source": "cve@mitre.org"
    },
    {
      "url": "http://www.securityfocus.com/archive/1/archive/1/539955/100/0/threaded",
      "source": "cve@mitre.org"
    },
    {
      "url": "http://www.securityfocus.com/archive/1/archive/1/540254/100/0/threaded",
      "source": "cve@mitre.org"
    },
    {
      "url": "http://www.securityfocus.com/bid/94454",
      "source": "cve@mitre.org"
    },
    {
      "url": "http://www.securitytracker.com/id/1037354",
      "source": "cve@mitre.org"
    },
    {
      "url": "http://www.ubuntu.com/usn/USN-3349-1",
      "source": "cve@mitre.org"
    },
    {
      "url": "https://bto.bluecoat.com/security-advisory/sa139",
      "source": "cve@mitre.org"
    },
    {
      "url": "https://cert-portal.siemens.com/productcert/pdf/ssa-211752.pdf",
      "source": "cve@mitre.org"
    },
    {
      "url": "https://h20566.www2.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-hpesbux03706en_us",
      "source": "cve@mitre.org"
    },
    {
      "url": "https://security.FreeBSD.org/advisories/FreeBSD-SA-16:39.ntp.asc",
      "source": "cve@mitre.org"
    },
    {
      "url": "https://support.hpe.com/hpsc/doc/public/display?docLocale=en&docId=emr_na-hpesbhf03883en_us",
      "source": "cve@mitre.org"
    },
    {
      "url": "https://support.hpe.com/hpsc/doc/public/display?docLocale=en&docId=emr_na-hpesbhf03899en_us",
      "source": "cve@mitre.org"
    },
    {
      "url": "https://support.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-hpesbhf03883en_us",
      "source": "cve@mitre.org"
    },
    {
      "url": "https://support.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-hpesbhf03899en_us",
      "source": "cve@mitre.org"
    },
    {
      "url": "https://us-cert.cisa.gov/ics/advisories/icsa-21-159-11",
      "source": "cve@mitre.org"
    },
    {
      "url": "https://www.broadcom.com/support/fibre-channel-networking/security-advisories/brocade-security-advisory-2017-223/",
      "source": "cve@mitre.org"
    },
    {
      "url": "https://www.kb.cert.org/vuls/id/633847",
      "source": "cve@mitre.org",
      "tags": [
        "Third Party Advisory",
        "US Government Resource"
      ]
    }
  ]
}