{"attribution":"This product uses data from the NVD API but is not endorsed or certified by the NVD.","cve":{"id":"CVE-2018-7170","sourceIdentifier":"cve@mitre.org","published":"2018-03-06T20:29:01.297","lastModified":"2026-06-17T02:02:44.027","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's 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 simétrica creen de forma arbitraria muchas asociaciones efímeras para ganar la selección de reloj de ntpd y modifiquen el reloj de una víctima mediante un ataque Sybil. Este problema existe debido a una solución incompleta para CVE-2016-1549."}],"affected":[{"source":"cve@mitre.org","affectedData":[{"vendor":"n/a","product":"n/a","versions":[{"version":"n/a","status":"affected"}]}]}],"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"]}]}}