CVE-2018-7170 (GCVE-0-2018-7170)

Vulnerability from cvelistv5 – Published: 2018-03-06 20:00 – Updated: 2024-08-05 06:24
VLAI
Summary
ntpd in ntp 4.2.x before 4.2.8p7 and 4.3.x before 4.3.92 allows authenticated users that know the private symmetric key to create arbitrarily-many ephemeral associations in order to win the clock selection of ntpd and modify a victim's clock via a Sybil attack. This issue exists because of an incomplete fix for CVE-2016-1549.
Severity
5.3 (Medium)
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:H/A:N
CWE
  • n/a
Assigner
References
Date Public
2018-02-28 00:00
Show details on NVD website
To clipboard 

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-05T06:24:10.327Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "http://packetstormsecurity.com/files/146631/Slackware-Security-Advisory-ntp-Updates.html"
          },
          {
            "name": "GLSA-201805-12",
            "tags": [
              "vendor-advisory",
              "x_refsource_GENTOO",
              "x_transferred"
            ],
            "url": "https://security.gentoo.org/glsa/201805-12"
          },
          {
            "name": "FreeBSD-SA-18:02",
            "tags": [
              "vendor-advisory",
              "x_refsource_FREEBSD",
              "x_transferred"
            ],
            "url": "https://security.FreeBSD.org/advisories/FreeBSD-SA-18:02.ntp.asc"
          },
          {
            "tags": [
              "x_refsource_CONFIRM",
              "x_transferred"
            ],
            "url": "https://security.netapp.com/advisory/ntap-20180626-0001/"
          },
          {
            "name": "20180301 [Newsletter/Marketing] [slackware-security] ntp (SSA:2018-060-02)",
            "tags": [
              "mailing-list",
              "x_refsource_BUGTRAQ",
              "x_transferred"
            ],
            "url": "http://www.securityfocus.com/archive/1/541824/100/0/threaded"
          },
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1550214"
          },
          {
            "tags": [
              "x_refsource_CONFIRM",
              "x_transferred"
            ],
            "url": "http://support.ntp.org/bin/view/Main/NtpBug3415"
          },
          {
            "tags": [
              "x_refsource_CONFIRM",
              "x_transferred"
            ],
            "url": "https://www.synology.com/support/security/Synology_SA_18_13"
          },
          {
            "name": "103194",
            "tags": [
              "vdb-entry",
              "x_refsource_BID",
              "x_transferred"
            ],
            "url": "http://www.securityfocus.com/bid/103194"
          },
          {
            "tags": [
              "x_refsource_CONFIRM",
              "x_transferred"
            ],
            "url": "https://support.hpe.com/hpsc/doc/public/display?docLocale=en_US\u0026docId=emr_na-hpesbux03962en_us"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "n/a",
          "vendor": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ],
      "datePublic": "2018-02-28T00:00:00.000Z",
      "descriptions": [
        {
          "lang": "en",
          "value": "ntpd in ntp 4.2.x before 4.2.8p7 and 4.3.x before 4.3.92 allows authenticated users that know the private symmetric key to create arbitrarily-many ephemeral associations in order to win the clock selection of ntpd and modify a victim\u0027s clock via a Sybil attack. This issue exists because of an incomplete fix for CVE-2016-1549."
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "description": "n/a",
              "lang": "en",
              "type": "text"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2019-10-31T18:06:16.000Z",
        "orgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
        "shortName": "mitre"
      },
      "references": [
        {
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "http://packetstormsecurity.com/files/146631/Slackware-Security-Advisory-ntp-Updates.html"
        },
        {
          "name": "GLSA-201805-12",
          "tags": [
            "vendor-advisory",
            "x_refsource_GENTOO"
          ],
          "url": "https://security.gentoo.org/glsa/201805-12"
        },
        {
          "name": "FreeBSD-SA-18:02",
          "tags": [
            "vendor-advisory",
            "x_refsource_FREEBSD"
          ],
          "url": "https://security.FreeBSD.org/advisories/FreeBSD-SA-18:02.ntp.asc"
        },
        {
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://security.netapp.com/advisory/ntap-20180626-0001/"
        },
        {
          "name": "20180301 [Newsletter/Marketing] [slackware-security] ntp (SSA:2018-060-02)",
          "tags": [
            "mailing-list",
            "x_refsource_BUGTRAQ"
          ],
          "url": "http://www.securityfocus.com/archive/1/541824/100/0/threaded"
        },
        {
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1550214"
        },
        {
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "http://support.ntp.org/bin/view/Main/NtpBug3415"
        },
        {
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://www.synology.com/support/security/Synology_SA_18_13"
        },
        {
          "name": "103194",
          "tags": [
            "vdb-entry",
            "x_refsource_BID"
          ],
          "url": "http://www.securityfocus.com/bid/103194"
        },
        {
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://support.hpe.com/hpsc/doc/public/display?docLocale=en_US\u0026docId=emr_na-hpesbux03962en_us"
        }
      ],
      "x_legacyV4Record": {
        "CVE_data_meta": {
          "ASSIGNER": "cve@mitre.org",
          "ID": "CVE-2018-7170",
          "STATE": "PUBLIC"
        },
        "affects": {
          "vendor": {
            "vendor_data": [
              {
                "product": {
                  "product_data": [
                    {
                      "product_name": "n/a",
                      "version": {
                        "version_data": [
                          {
                            "version_value": "n/a"
                          }
                        ]
                      }
                    }
                  ]
                },
                "vendor_name": "n/a"
              }
            ]
          }
        },
        "data_format": "MITRE",
        "data_type": "CVE",
        "data_version": "4.0",
        "description": {
          "description_data": [
            {
              "lang": "eng",
              "value": "ntpd in ntp 4.2.x before 4.2.8p7 and 4.3.x before 4.3.92 allows authenticated users that know the private symmetric key to create arbitrarily-many ephemeral associations in order to win the clock selection of ntpd and modify a victim\u0027s clock via a Sybil attack. This issue exists because of an incomplete fix for CVE-2016-1549."
            }
          ]
        },
        "problemtype": {
          "problemtype_data": [
            {
              "description": [
                {
                  "lang": "eng",
                  "value": "n/a"
                }
              ]
            }
          ]
        },
        "references": {
          "reference_data": [
            {
              "name": "http://packetstormsecurity.com/files/146631/Slackware-Security-Advisory-ntp-Updates.html",
              "refsource": "MISC",
              "url": "http://packetstormsecurity.com/files/146631/Slackware-Security-Advisory-ntp-Updates.html"
            },
            {
              "name": "GLSA-201805-12",
              "refsource": "GENTOO",
              "url": "https://security.gentoo.org/glsa/201805-12"
            },
            {
              "name": "FreeBSD-SA-18:02",
              "refsource": "FREEBSD",
              "url": "https://security.FreeBSD.org/advisories/FreeBSD-SA-18:02.ntp.asc"
            },
            {
              "name": "https://security.netapp.com/advisory/ntap-20180626-0001/",
              "refsource": "CONFIRM",
              "url": "https://security.netapp.com/advisory/ntap-20180626-0001/"
            },
            {
              "name": "20180301 [Newsletter/Marketing] [slackware-security] ntp (SSA:2018-060-02)",
              "refsource": "BUGTRAQ",
              "url": "http://www.securityfocus.com/archive/1/541824/100/0/threaded"
            },
            {
              "name": "https://bugzilla.redhat.com/show_bug.cgi?id=1550214",
              "refsource": "MISC",
              "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1550214"
            },
            {
              "name": "http://support.ntp.org/bin/view/Main/NtpBug3415",
              "refsource": "CONFIRM",
              "url": "http://support.ntp.org/bin/view/Main/NtpBug3415"
            },
            {
              "name": "https://www.synology.com/support/security/Synology_SA_18_13",
              "refsource": "CONFIRM",
              "url": "https://www.synology.com/support/security/Synology_SA_18_13"
            },
            {
              "name": "103194",
              "refsource": "BID",
              "url": "http://www.securityfocus.com/bid/103194"
            },
            {
              "name": "https://support.hpe.com/hpsc/doc/public/display?docLocale=en_US\u0026docId=emr_na-hpesbux03962en_us",
              "refsource": "CONFIRM",
              "url": "https://support.hpe.com/hpsc/doc/public/display?docLocale=en_US\u0026docId=emr_na-hpesbux03962en_us"
            }
          ]
        }
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
    "assignerShortName": "mitre",
    "cveId": "CVE-2018-7170",
    "datePublished": "2018-03-06T20:00:00.000Z",
    "dateReserved": "2018-02-15T00:00:00.000Z",
    "dateUpdated": "2024-08-05T06:24:10.327Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1",
  "vulnerability-lookup:meta": {
    "epss": {
      "cve": "CVE-2018-7170",
      "date": "2026-07-14",
      "epss": "0.02704",
      "percentile": "0.84219"
    },
    "fkie_nvd": {
      "configurations": "[{\"nodes\": [{\"operator\": \"OR\", \"negate\": false, \"cpeMatch\": [{\"vulnerable\": true, \"criteria\": \"cpe:2.3:a:ntp:ntp:*:*:*:*:*:*:*:*\", \"versionStartIncluding\": \"4.2.0\", \"versionEndExcluding\": \"4.2.8\", \"matchCriteriaId\": \"C240BAAB-8C12-4501-9DC6-FB877304E908\"}, {\"vulnerable\": true, \"criteria\": \"cpe:2.3:a:ntp:ntp:*:*:*:*:*:*:*:*\", \"versionStartIncluding\": \"4.3.0\", \"versionEndExcluding\": \"4.3.92\", \"matchCriteriaId\": \"2A5D4FE7-07FC-4869-84F2-4FA767490A73\"}, {\"vulnerable\": true, \"criteria\": \"cpe:2.3:a:ntp:ntp:4.2.8:-:*:*:*:*:*:*\", \"matchCriteriaId\": \"EEA51D83-5841-4335-AF07-7A43C118CAAE\"}, {\"vulnerable\": true, \"criteria\": \"cpe:2.3:a:ntp:ntp:4.2.8:p1:*:*:*:*:*:*\", \"matchCriteriaId\": \"C855BBD2-2B38-4EFF-9DBE-CA61CCACD0DE\"}, {\"vulnerable\": true, \"criteria\": \"cpe:2.3:a:ntp:ntp:4.2.8:p1-beta1:*:*:*:*:*:*\", \"matchCriteriaId\": \"49ADE0C3-F75C-4EC0-8805-56013F0EB92C\"}, {\"vulnerable\": true, \"criteria\": \"cpe:2.3:a:ntp:ntp:4.2.8:p1-beta2:*:*:*:*:*:*\", \"matchCriteriaId\": \"D8FF625A-EFA3-43D1-8698-4A37AE31A07C\"}, {\"vulnerable\": true, \"criteria\": \"cpe:2.3:a:ntp:ntp:4.2.8:p1-beta3:*:*:*:*:*:*\", \"matchCriteriaId\": \"E3B99BBD-97FE-4615-905A-A614592226F8\"}, {\"vulnerable\": true, \"criteria\": \"cpe:2.3:a:ntp:ntp:4.2.8:p1-beta4:*:*:*:*:*:*\", \"matchCriteriaId\": \"E7A9AD3A-F030-4331-B52A-518BD963AB8A\"}, {\"vulnerable\": true, \"criteria\": \"cpe:2.3:a:ntp:ntp:4.2.8:p1-beta5:*:*:*:*:*:*\", \"matchCriteriaId\": \"C293B8BE-6691-4944-BCD6-25EB98CABC73\"}, {\"vulnerable\": true, \"criteria\": \"cpe:2.3:a:ntp:ntp:4.2.8:p1-rc1:*:*:*:*:*:*\", \"matchCriteriaId\": \"CEA650F8-2576-494A-A861-61572CA319D0\"}, {\"vulnerable\": true, \"criteria\": \"cpe:2.3:a:ntp:ntp:4.2.8:p1-rc2:*:*:*:*:*:*\", \"matchCriteriaId\": \"4ED21EE8-7CBF-4BC5-BFC3-185D41296238\"}, {\"vulnerable\": true, \"criteria\": \"cpe:2.3:a:ntp:ntp:4.2.8:p2:*:*:*:*:*:*\", \"matchCriteriaId\": \"C76A0B44-13DE-4173-8D05-DA54F6A71759\"}, {\"vulnerable\": true, \"criteria\": \"cpe:2.3:a:ntp:ntp:4.2.8:p2-rc1:*:*:*:*:*:*\", \"matchCriteriaId\": \"1450241C-2F6D-4122-B33C-D78D065BA403\"}, {\"vulnerable\": true, \"criteria\": \"cpe:2.3:a:ntp:ntp:4.2.8:p2-rc2:*:*:*:*:*:*\", \"matchCriteriaId\": \"721AFD22-91D3-488E-A5E6-DD84C86E412B\"}, {\"vulnerable\": true, \"criteria\": \"cpe:2.3:a:ntp:ntp:4.2.8:p2-rc3:*:*:*:*:*:*\", \"matchCriteriaId\": \"8D6ADDB1-2E96-4FF6-AE95-4B06654D38B0\"}, {\"vulnerable\": true, \"criteria\": \"cpe:2.3:a:ntp:ntp:4.2.8:p3:*:*:*:*:*:*\", \"matchCriteriaId\": \"41E44E9F-6383-4E12-AEDC-B653FEA77A48\"}, {\"vulnerable\": true, \"criteria\": \"cpe:2.3:a:ntp:ntp:4.2.8:p3-rc1:*:*:*:*:*:*\", \"matchCriteriaId\": \"466D9A37-2658-4695-9429-0C6BF4A631C2\"}, {\"vulnerable\": true, \"criteria\": \"cpe:2.3:a:ntp:ntp:4.2.8:p3-rc2:*:*:*:*:*:*\", \"matchCriteriaId\": \"99774181-5F12-446C-AC2C-DB1C52295EED\"}, {\"vulnerable\": true, \"criteria\": \"cpe:2.3:a:ntp:ntp:4.2.8:p3-rc3:*:*:*:*:*:*\", \"matchCriteriaId\": \"4427EE6D-3F79-4FF5-B3EC-EE6BD01562CE\"}, {\"vulnerable\": true, \"criteria\": \"cpe:2.3:a:ntp:ntp:4.2.8:p4:*:*:*:*:*:*\", \"matchCriteriaId\": \"99C71C00-7222-483B-AEFB-159337BD3C92\"}, {\"vulnerable\": true, \"criteria\": \"cpe:2.3:a:ntp:ntp:4.2.8:p5:*:*:*:*:*:*\", \"matchCriteriaId\": \"75A9AA28-1B20-44BB-815C-7294A53E910E\"}, {\"vulnerable\": true, \"criteria\": \"cpe:2.3:a:ntp:ntp:4.2.8:p6:*:*:*:*:*:*\", \"matchCriteriaId\": \"8C213794-111D-41F3-916C-AD97F731D600\"}]}]}, {\"nodes\": [{\"operator\": \"OR\", \"negate\": false, \"cpeMatch\": [{\"vulnerable\": true, \"criteria\": \"cpe:2.3:a:synology:diskstation_manager:*:*:*:*:*:*:*:*\", \"versionStartIncluding\": \"5.2\", \"versionEndExcluding\": \"6.1.6-15266\", \"matchCriteriaId\": \"3C5CFA3F-BC6D-4E0C-A311-A42514178E5F\"}, {\"vulnerable\": true, \"criteria\": \"cpe:2.3:a:synology:router_manager:*:*:*:*:*:*:*:*\", \"versionStartIncluding\": \"1.1\", \"versionEndExcluding\": \"1.1.6-6931-3\", \"matchCriteriaId\": \"B7B0AEDA-4FC3-4AD8-ADE3-356A4498AF95\"}, {\"vulnerable\": true, \"criteria\": \"cpe:2.3:a:synology:skynas:*:*:*:*:*:*:*:*\", \"versionEndExcluding\": \"6.1.5-15254\", \"matchCriteriaId\": \"C114627A-7D1E-4B0C-B004-9CFAC78F2F0F\"}, {\"vulnerable\": true, \"criteria\": \"cpe:2.3:a:synology:virtual_diskstation_manager:*:*:*:*:*:*:*:*\", \"versionEndExcluding\": \"6.1.6-15266\", \"matchCriteriaId\": \"E65C1F9D-C457-49E8-A46B-9B15D5FCE5C7\"}]}]}, {\"operator\": \"AND\", \"nodes\": [{\"operator\": \"OR\", \"negate\": false, \"cpeMatch\": [{\"vulnerable\": true, \"criteria\": \"cpe:2.3:o:synology:vs960hd_firmware:*:*:*:*:*:*:*:*\", \"versionEndExcluding\": \"2.2.3-1505\", \"matchCriteriaId\": \"2A606357-7469-43AD-8B5A-152C43D017DF\"}]}, {\"operator\": \"OR\", \"negate\": false, \"cpeMatch\": [{\"vulnerable\": false, \"criteria\": \"cpe:2.3:h:synology:vs960hd:-:*:*:*:*:*:*:*\", \"matchCriteriaId\": \"1CCBDFF9-AF42-4681-879B-CF789EBAD130\"}]}]}, {\"nodes\": [{\"operator\": \"OR\", \"negate\": false, \"cpeMatch\": [{\"vulnerable\": true, \"criteria\": \"cpe:2.3:a:netapp:hci:-:*:*:*:*:*:*:*\", \"matchCriteriaId\": \"8A6E548F-62E9-40CB-85DA-FDAA0F0096C6\"}, {\"vulnerable\": true, \"criteria\": \"cpe:2.3:a:netapp:solidfire:-:*:*:*:*:*:*:*\", \"matchCriteriaId\": \"A6E9EF0C-AFA8-4F7B-9FDC-1E0F7C26E737\"}]}]}, {\"nodes\": [{\"operator\": \"OR\", \"negate\": false, \"cpeMatch\": [{\"vulnerable\": true, \"criteria\": \"cpe:2.3:a:hpe:hpux-ntp:*:*:*:*:*:*:*:*\", \"versionEndExcluding\": \"c.4.2.8.4.0\", \"matchCriteriaId\": \"F1A1FDA7-BE46-4FAB-A3FD-9A40C770C4AB\"}]}]}]",
      "descriptions": "[{\"lang\": \"en\", \"value\": \"ntpd in ntp 4.2.x before 4.2.8p7 and 4.3.x before 4.3.92 allows authenticated users that know the private symmetric key to create arbitrarily-many ephemeral associations in order to win the clock selection of ntpd and modify a victim\u0027s clock via a Sybil attack. This issue exists because of an incomplete fix for CVE-2016-1549.\"}, {\"lang\": \"es\", \"value\": \"ntpd en ntp, en versiones 4.2.x anteriores a la 4.2.8p7 y versiones 4.3.x anteriores a la 4.3.92, permite que usuarios autenticados que conozcan la clave privada sim\\u00e9trica creen de forma arbitraria muchas asociaciones ef\\u00edmeras para ganar la selecci\\u00f3n de reloj de ntpd y modifiquen el reloj de una v\\u00edctima mediante un ataque Sybil. Este problema existe debido a una soluci\\u00f3n incompleta para CVE-2016-1549.\"}]",
      "id": "CVE-2018-7170",
      "lastModified": "2024-11-21T04:11:42.873",
      "metrics": "{\"cvssMetricV31\": [{\"source\": \"nvd@nist.gov\", \"type\": \"Primary\", \"cvssData\": {\"version\": \"3.1\", \"vectorString\": \"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:H/A:N\", \"baseScore\": 5.3, \"baseSeverity\": \"MEDIUM\", \"attackVector\": \"NETWORK\", \"attackComplexity\": \"HIGH\", \"privilegesRequired\": \"LOW\", \"userInteraction\": \"NONE\", \"scope\": \"UNCHANGED\", \"confidentialityImpact\": \"NONE\", \"integrityImpact\": \"HIGH\", \"availabilityImpact\": \"NONE\"}, \"exploitabilityScore\": 1.6, \"impactScore\": 3.6}], \"cvssMetricV2\": [{\"source\": \"nvd@nist.gov\", \"type\": \"Primary\", \"cvssData\": {\"version\": \"2.0\", \"vectorString\": \"AV:N/AC:M/Au:S/C:N/I:P/A:N\", \"baseScore\": 3.5, \"accessVector\": \"NETWORK\", \"accessComplexity\": \"MEDIUM\", \"authentication\": \"SINGLE\", \"confidentialityImpact\": \"NONE\", \"integrityImpact\": \"PARTIAL\", \"availabilityImpact\": \"NONE\"}, \"baseSeverity\": \"LOW\", \"exploitabilityScore\": 6.8, \"impactScore\": 2.9, \"acInsufInfo\": false, \"obtainAllPrivilege\": false, \"obtainUserPrivilege\": false, \"obtainOtherPrivilege\": false, \"userInteractionRequired\": false}]}",
      "published": "2018-03-06T20:29:01.297",
      "references": "[{\"url\": \"http://packetstormsecurity.com/files/146631/Slackware-Security-Advisory-ntp-Updates.html\", \"source\": \"cve@mitre.org\", \"tags\": [\"Third Party Advisory\", \"VDB Entry\"]}, {\"url\": \"http://support.ntp.org/bin/view/Main/NtpBug3415\", \"source\": \"cve@mitre.org\", \"tags\": [\"Third Party Advisory\"]}, {\"url\": \"http://www.securityfocus.com/archive/1/541824/100/0/threaded\", \"source\": \"cve@mitre.org\", \"tags\": [\"Third Party Advisory\", \"VDB Entry\"]}, {\"url\": \"http://www.securityfocus.com/bid/103194\", \"source\": \"cve@mitre.org\", \"tags\": [\"Third Party Advisory\", \"VDB Entry\"]}, {\"url\": \"https://bugzilla.redhat.com/show_bug.cgi?id=1550214\", \"source\": \"cve@mitre.org\", \"tags\": [\"Issue Tracking\", \"Third Party Advisory\"]}, {\"url\": \"https://security.FreeBSD.org/advisories/FreeBSD-SA-18:02.ntp.asc\", \"source\": \"cve@mitre.org\", \"tags\": [\"Third Party Advisory\"]}, {\"url\": \"https://security.gentoo.org/glsa/201805-12\", \"source\": \"cve@mitre.org\", \"tags\": [\"Third Party Advisory\"]}, {\"url\": \"https://security.netapp.com/advisory/ntap-20180626-0001/\", \"source\": \"cve@mitre.org\", \"tags\": [\"Third Party Advisory\"]}, {\"url\": \"https://support.hpe.com/hpsc/doc/public/display?docLocale=en_US\u0026docId=emr_na-hpesbux03962en_us\", \"source\": \"cve@mitre.org\", \"tags\": [\"Third Party Advisory\"]}, {\"url\": \"https://www.synology.com/support/security/Synology_SA_18_13\", \"source\": \"cve@mitre.org\", \"tags\": [\"Third Party Advisory\"]}, {\"url\": \"http://packetstormsecurity.com/files/146631/Slackware-Security-Advisory-ntp-Updates.html\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\", \"tags\": [\"Third Party Advisory\", \"VDB Entry\"]}, {\"url\": \"http://support.ntp.org/bin/view/Main/NtpBug3415\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\", \"tags\": [\"Third Party Advisory\"]}, {\"url\": \"http://www.securityfocus.com/archive/1/541824/100/0/threaded\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\", \"tags\": [\"Third Party Advisory\", \"VDB Entry\"]}, {\"url\": \"http://www.securityfocus.com/bid/103194\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\", \"tags\": [\"Third Party Advisory\", \"VDB Entry\"]}, {\"url\": \"https://bugzilla.redhat.com/show_bug.cgi?id=1550214\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\", \"tags\": [\"Issue Tracking\", \"Third Party Advisory\"]}, {\"url\": \"https://security.FreeBSD.org/advisories/FreeBSD-SA-18:02.ntp.asc\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\", \"tags\": [\"Third Party Advisory\"]}, {\"url\": \"https://security.gentoo.org/glsa/201805-12\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\", \"tags\": [\"Third Party Advisory\"]}, {\"url\": \"https://security.netapp.com/advisory/ntap-20180626-0001/\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\", \"tags\": [\"Third Party Advisory\"]}, {\"url\": \"https://support.hpe.com/hpsc/doc/public/display?docLocale=en_US\u0026docId=emr_na-hpesbux03962en_us\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\", \"tags\": [\"Third Party Advisory\"]}, {\"url\": \"https://www.synology.com/support/security/Synology_SA_18_13\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\", \"tags\": [\"Third Party Advisory\"]}]",
      "sourceIdentifier": "cve@mitre.org",
      "vulnStatus": "Modified",
      "weaknesses": "[{\"source\": \"nvd@nist.gov\", \"type\": \"Primary\", \"description\": [{\"lang\": \"en\", \"value\": \"NVD-CWE-noinfo\"}]}]"
    },
    "nvd": "{\"cve\":{\"id\":\"CVE-2018-7170\",\"sourceIdentifier\":\"cve@mitre.org\",\"published\":\"2018-03-06T20:29:01.297\",\"lastModified\":\"2025-01-14T19:29:55.853\",\"vulnStatus\":\"Modified\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"ntpd in ntp 4.2.x before 4.2.8p7 and 4.3.x before 4.3.92 allows authenticated users that know the private symmetric key to create arbitrarily-many ephemeral associations in order to win the clock selection of ntpd and modify a victim\u0027s clock via a Sybil attack. This issue exists because of an incomplete fix for CVE-2016-1549.\"},{\"lang\":\"es\",\"value\":\"ntpd en ntp, en versiones 4.2.x anteriores a la 4.2.8p7 y versiones 4.3.x anteriores a la 4.3.92, permite que usuarios autenticados que conozcan la clave privada sim\u00e9trica creen de forma arbitraria muchas asociaciones ef\u00edmeras para ganar la selecci\u00f3n de reloj de ntpd y modifiquen el reloj de una v\u00edctima mediante un ataque Sybil. Este problema existe debido a una soluci\u00f3n incompleta para CVE-2016-1549.\"}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:H/A:N\",\"baseScore\":5.3,\"baseSeverity\":\"MEDIUM\",\"attackVector\":\"NETWORK\",\"attackComplexity\":\"HIGH\",\"privilegesRequired\":\"LOW\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"NONE\",\"integrityImpact\":\"HIGH\",\"availabilityImpact\":\"NONE\"},\"exploitabilityScore\":1.6,\"impactScore\":3.6}],\"cvssMetricV2\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"2.0\",\"vectorString\":\"AV:N/AC:M/Au:S/C:N/I:P/A:N\",\"baseScore\":3.5,\"accessVector\":\"NETWORK\",\"accessComplexity\":\"MEDIUM\",\"authentication\":\"SINGLE\",\"confidentialityImpact\":\"NONE\",\"integrityImpact\":\"PARTIAL\",\"availabilityImpact\":\"NONE\"},\"baseSeverity\":\"LOW\",\"exploitabilityScore\":6.8,\"impactScore\":2.9,\"acInsufInfo\":false,\"obtainAllPrivilege\":false,\"obtainUserPrivilege\":false,\"obtainOtherPrivilege\":false,\"userInteractionRequired\":false}]},\"weaknesses\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"NVD-CWE-noinfo\"}]}],\"configurations\":[{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:ntp:ntp:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"4.2.0\",\"versionEndExcluding\":\"4.2.8\",\"matchCriteriaId\":\"C240BAAB-8C12-4501-9DC6-FB877304E908\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:ntp:ntp:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"4.3.0\",\"versionEndExcluding\":\"4.3.92\",\"matchCriteriaId\":\"2A5D4FE7-07FC-4869-84F2-4FA767490A73\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:ntp:ntp:4.2.8:-:*:*:*:*:*:*\",\"matchCriteriaId\":\"EEA51D83-5841-4335-AF07-7A43C118CAAE\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:ntp:ntp:4.2.8:p1:*:*:*:*:*:*\",\"matchCriteriaId\":\"C855BBD2-2B38-4EFF-9DBE-CA61CCACD0DE\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:ntp:ntp:4.2.8:p1-beta1:*:*:*:*:*:*\",\"matchCriteriaId\":\"49ADE0C3-F75C-4EC0-8805-56013F0EB92C\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:ntp:ntp:4.2.8:p1-beta2:*:*:*:*:*:*\",\"matchCriteriaId\":\"D8FF625A-EFA3-43D1-8698-4A37AE31A07C\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:ntp:ntp:4.2.8:p1-beta3:*:*:*:*:*:*\",\"matchCriteriaId\":\"E3B99BBD-97FE-4615-905A-A614592226F8\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:ntp:ntp:4.2.8:p1-beta4:*:*:*:*:*:*\",\"matchCriteriaId\":\"E7A9AD3A-F030-4331-B52A-518BD963AB8A\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:ntp:ntp:4.2.8:p1-beta5:*:*:*:*:*:*\",\"matchCriteriaId\":\"C293B8BE-6691-4944-BCD6-25EB98CABC73\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:ntp:ntp:4.2.8:p1-rc1:*:*:*:*:*:*\",\"matchCriteriaId\":\"CEA650F8-2576-494A-A861-61572CA319D0\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:ntp:ntp:4.2.8:p1-rc2:*:*:*:*:*:*\",\"matchCriteriaId\":\"4ED21EE8-7CBF-4BC5-BFC3-185D41296238\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:ntp:ntp:4.2.8:p2:*:*:*:*:*:*\",\"matchCriteriaId\":\"C76A0B44-13DE-4173-8D05-DA54F6A71759\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:ntp:ntp:4.2.8:p2-rc1:*:*:*:*:*:*\",\"matchCriteriaId\":\"1450241C-2F6D-4122-B33C-D78D065BA403\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:ntp:ntp:4.2.8:p2-rc2:*:*:*:*:*:*\",\"matchCriteriaId\":\"721AFD22-91D3-488E-A5E6-DD84C86E412B\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:ntp:ntp:4.2.8:p2-rc3:*:*:*:*:*:*\",\"matchCriteriaId\":\"8D6ADDB1-2E96-4FF6-AE95-4B06654D38B0\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:ntp:ntp:4.2.8:p3:*:*:*:*:*:*\",\"matchCriteriaId\":\"41E44E9F-6383-4E12-AEDC-B653FEA77A48\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:ntp:ntp:4.2.8:p3-rc1:*:*:*:*:*:*\",\"matchCriteriaId\":\"466D9A37-2658-4695-9429-0C6BF4A631C2\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:ntp:ntp:4.2.8:p3-rc2:*:*:*:*:*:*\",\"matchCriteriaId\":\"99774181-5F12-446C-AC2C-DB1C52295EED\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:ntp:ntp:4.2.8:p3-rc3:*:*:*:*:*:*\",\"matchCriteriaId\":\"4427EE6D-3F79-4FF5-B3EC-EE6BD01562CE\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:ntp:ntp:4.2.8:p4:*:*:*:*:*:*\",\"matchCriteriaId\":\"99C71C00-7222-483B-AEFB-159337BD3C92\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:ntp:ntp:4.2.8:p5:*:*:*:*:*:*\",\"matchCriteriaId\":\"75A9AA28-1B20-44BB-815C-7294A53E910E\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:ntp:ntp:4.2.8:p6:*:*:*:*:*:*\",\"matchCriteriaId\":\"8C213794-111D-41F3-916C-AD97F731D600\"}]}]},{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:synology:router_manager:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"1.1\",\"versionEndExcluding\":\"1.1.6-6931-3\",\"matchCriteriaId\":\"B7B0AEDA-4FC3-4AD8-ADE3-356A4498AF95\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:synology:skynas:*:*:*:*:*:*:*:*\",\"versionEndExcluding\":\"6.1.5-15254\",\"matchCriteriaId\":\"C114627A-7D1E-4B0C-B004-9CFAC78F2F0F\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:synology:virtual_diskstation_manager:*:*:*:*:*:*:*:*\",\"versionEndExcluding\":\"6.1.6-15266\",\"matchCriteriaId\":\"E65C1F9D-C457-49E8-A46B-9B15D5FCE5C7\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:synology:diskstation_manager:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"5.2\",\"versionEndExcluding\":\"6.1.6-15266\",\"matchCriteriaId\":\"B270650E-B819-4CE6-B129-BF90CE8B2A03\"}]}]},{\"operator\":\"AND\",\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:synology:vs960hd_firmware:*:*:*:*:*:*:*:*\",\"versionEndExcluding\":\"2.2.3-1505\",\"matchCriteriaId\":\"2A606357-7469-43AD-8B5A-152C43D017DF\"}]},{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":false,\"criteria\":\"cpe:2.3:h:synology:vs960hd:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"1CCBDFF9-AF42-4681-879B-CF789EBAD130\"}]}]},{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:netapp:hci:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"8A6E548F-62E9-40CB-85DA-FDAA0F0096C6\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:netapp:solidfire:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"A6E9EF0C-AFA8-4F7B-9FDC-1E0F7C26E737\"}]}]},{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:hpe:hpux-ntp:*:*:*:*:*:*:*:*\",\"versionEndExcluding\":\"c.4.2.8.4.0\",\"matchCriteriaId\":\"F1A1FDA7-BE46-4FAB-A3FD-9A40C770C4AB\"}]}]}],\"references\":[{\"url\":\"http://packetstormsecurity.com/files/146631/Slackware-Security-Advisory-ntp-Updates.html\",\"source\":\"cve@mitre.org\",\"tags\":[\"Third Party Advisory\",\"VDB Entry\"]},{\"url\":\"http://support.ntp.org/bin/view/Main/NtpBug3415\",\"source\":\"cve@mitre.org\",\"tags\":[\"Third Party Advisory\"]},{\"url\":\"http://www.securityfocus.com/archive/1/541824/100/0/threaded\",\"source\":\"cve@mitre.org\",\"tags\":[\"Third Party Advisory\",\"VDB Entry\"]},{\"url\":\"http://www.securityfocus.com/bid/103194\",\"source\":\"cve@mitre.org\",\"tags\":[\"Third Party Advisory\",\"VDB Entry\"]},{\"url\":\"https://bugzilla.redhat.com/show_bug.cgi?id=1550214\",\"source\":\"cve@mitre.org\",\"tags\":[\"Issue Tracking\",\"Third Party Advisory\"]},{\"url\":\"https://security.FreeBSD.org/advisories/FreeBSD-SA-18:02.ntp.asc\",\"source\":\"cve@mitre.org\",\"tags\":[\"Third Party Advisory\"]},{\"url\":\"https://security.gentoo.org/glsa/201805-12\",\"source\":\"cve@mitre.org\",\"tags\":[\"Third Party Advisory\"]},{\"url\":\"https://security.netapp.com/advisory/ntap-20180626-0001/\",\"source\":\"cve@mitre.org\",\"tags\":[\"Third Party Advisory\"]},{\"url\":\"https://support.hpe.com/hpsc/doc/public/display?docLocale=en_US\u0026docId=emr_na-hpesbux03962en_us\",\"source\":\"cve@mitre.org\",\"tags\":[\"Third Party Advisory\"]},{\"url\":\"https://www.synology.com/support/security/Synology_SA_18_13\",\"source\":\"cve@mitre.org\",\"tags\":[\"Third Party Advisory\"]},{\"url\":\"http://packetstormsecurity.com/files/146631/Slackware-Security-Advisory-ntp-Updates.html\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Third Party Advisory\",\"VDB Entry\"]},{\"url\":\"http://support.ntp.org/bin/view/Main/NtpBug3415\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Third Party Advisory\"]},{\"url\":\"http://www.securityfocus.com/archive/1/541824/100/0/threaded\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Third Party Advisory\",\"VDB Entry\"]},{\"url\":\"http://www.securityfocus.com/bid/103194\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Third Party Advisory\",\"VDB Entry\"]},{\"url\":\"https://bugzilla.redhat.com/show_bug.cgi?id=1550214\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Issue Tracking\",\"Third Party Advisory\"]},{\"url\":\"https://security.FreeBSD.org/advisories/FreeBSD-SA-18:02.ntp.asc\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Third Party Advisory\"]},{\"url\":\"https://security.gentoo.org/glsa/201805-12\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Third Party Advisory\"]},{\"url\":\"https://security.netapp.com/advisory/ntap-20180626-0001/\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Third Party Advisory\"]},{\"url\":\"https://support.hpe.com/hpsc/doc/public/display?docLocale=en_US\u0026docId=emr_na-hpesbux03962en_us\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Third Party Advisory\"]},{\"url\":\"https://www.synology.com/support/security/Synology_SA_18_13\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Third Party Advisory\"]}]}}",
    "redhat_vex": {
      "aggregate_severity": "Low",
      "current_release_date": "2025-11-21T14:02:08+00:00",
      "cve": "CVE-2018-7170",
      "id": "CVE-2018-7170",
      "initial_release_date": "2018-02-27T00:00:00+00:00",
      "product_status:known_affected": "13",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "ntp: Ephemeral association time spoofing additional protection",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2018/cve-2018-7170.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.