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    CVE-2018-7170

    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.

    Published:Feb 27, 2018
    Last Modified:Jan 14, 2025
    EPS:Mar 6, 2018
    EPSS Score:0.00563
    CVSS Score:5.3

    Affected Products

    Vendor
    Hpe
    Product
    Hpux-ntp
    Vendor
    Netapp
    Product
    Hci
    Vendor
    Netapp
    Product
    Solidfire
    Vendor
    Ntp
    Product
    Ntp
    Vendor
    Synology
    Product
    Diskstation Manager
    Vendor
    Synology
    Product
    Router Manager
    Vendor
    Synology
    Product
    Skynas
    Vendor
    Synology
    Product
    Virtual Diskstation Manager
    Vendor
    Synology
    Product
    Vs960hd
    Vendor
    Synology
    Product
    Vs960hd Firmware

    Exploits

    No exploit reference

    Common Weakness Enumeration

    No CWE recorded yet

    Common Attack Pattern Enumeration and Classification (CAPEC)

    No CAPEC recorded yet

    Related CVEs

    CVE-2019-8936 (CVSS 7.5) — NTP through 4.2.8p12 has a NULL Pointer Dereference.…
    CVE-2018-7185 (CVSS 7.5) — The protocol engine in ntp 4.2.6 before 4.2.8p11 allows a remote attackers to cause a denial of service (disru…
    CVE-2016-9042 (CVSS 5.9) — An exploitable denial of service vulnerability exists in the origin timestamp check functionality of ntpd 4.2.…
    CVE-2017-6458 (CVSS 8.8) — Multiple buffer overflows in the ctl_put* functions in NTP before 4.2.8p10 and 4.3.x before 4.3.94 allow remot…
    CVE-2016-7426 (CVSS 7.5) — NTP before 4.2.8p9 rate limits responses received from the configured sources when rate limiting for all assoc…
    CVE-2016-7434 (CVSS 7.5) — The read_mru_list function in NTP before 4.2.8p9 allows remote attackers to cause a denial of service (crash) …

    References

    http://packetstormsecurity.com/files/146631/Slackware-Security-Advisory-ntp-Updates.html
    http://support.ntp.org/bin/view/Main/NtpBug3415
    http://www.securityfocus.com/archive/1/541824/100/0/threaded
    http://www.securityfocus.com/bid/103194
    https://bugzilla.redhat.com/show_bug.cgi?id=1550214
    https://security.FreeBSD.org/advisories/FreeBSD-SA-18:02.ntp.asc
    https://security.gentoo.org/glsa/201805-12
    https://security.netapp.com/advisory/ntap-20180626-0001/
    https://support.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-hpesbux03962en_us
    https://www.synology.com/support/security/Synology_SA_18_13
    http://packetstormsecurity.com/files/146631/Slackware-Security-Advisory-ntp-Updates.html
    http://support.ntp.org/bin/view/Main/NtpBug3415
    http://www.securityfocus.com/archive/1/541824/100/0/threaded
    http://www.securityfocus.com/bid/103194
    https://bugzilla.redhat.com/show_bug.cgi?id=1550214
    https://security.FreeBSD.org/advisories/FreeBSD-SA-18:02.ntp.asc
    https://security.gentoo.org/glsa/201805-12
    https://security.netapp.com/advisory/ntap-20180626-0001/
    https://support.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-hpesbux03962en_us
    https://www.synology.com/support/security/Synology_SA_18_13

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High