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    CVE-2020-11868

    ntpd in ntp before 4.2.8p14 and 4.3.x before 4.3.100 allows an off-path attacker to block unauthenticated synchronization via a server mode packet with a spoofed source IP address, because transmissions are rescheduled even when a packet lacks a valid origin timestamp.

    Published:Mar 3, 2020
    Last Modified:May 5, 2025
    EPS:Apr 17, 2020
    EPSS Score:0.00896
    CVSS Score:7.5

    Affected Products

    Vendor
    Debian
    Product
    Debian Linux
    Vendor
    Netapp
    Product
    All Flash Fabric-attached Storage 8300
    Vendor
    Netapp
    Product
    All Flash Fabric-attached Storage 8300 Firmware
    Vendor
    Netapp
    Product
    All Flash Fabric-attached Storage 8700
    Vendor
    Netapp
    Product
    All Flash Fabric-attached Storage 8700 Firmware
    Vendor
    Netapp
    Product
    All Flash Fabric-attached Storage A400
    Vendor
    Netapp
    Product
    All Flash Fabric-attached Storage A400 Firmware
    Vendor
    Netapp
    Product
    Clustered Data Ontap
    Vendor
    Netapp
    Product
    Data Ontap
    Vendor
    Netapp
    Product
    Fabric-attached Storage 8300
    Vendor
    Netapp
    Product
    Fabric-attached Storage 8300 Firmware
    Vendor
    Netapp
    Product
    Fabric-attached Storage 8700
    Vendor
    Netapp
    Product
    Fabric-attached Storage 8700 Firmware
    Vendor
    Netapp
    Product
    Fabric-attached Storage A400
    Vendor
    Netapp
    Product
    Fabric-attached Storage A400 Firmware
    Vendor
    Netapp
    Product
    Hci Management Node
    Vendor
    Netapp
    Product
    Hci Storage Node
    Vendor
    Netapp
    Product
    Hci Storage Node Firmware
    Vendor
    Netapp
    Product
    Solidfire
    Vendor
    Netapp
    Product
    Vasa Provider For Clustered Data Ontap
    Vendor
    Netapp
    Product
    Virtual Storage Console
    Vendor
    Ntp
    Product
    Ntp
    Vendor
    Opensuse
    Product
    Leap
    Vendor
    Redhat
    Product
    Enterprise Linux

    Exploits

    No exploit reference

    Common Attack Pattern Enumeration and Classification (CAPEC)

    CAPEC-111 JSON Hijacking (aka JavaScript Hijacking)
    CAPEC-141 Cache Poisoning
    CAPEC-142 DNS Cache Poisoning
    CAPEC-147 XML Ping of the Death
    CAPEC-160 Exploit Script-Based APIs
    CAPEC-21 Exploitation of Trusted Identifiers
    CAPEC-227 Sustained Client Engagement
    CAPEC-384 Application API Message Manipulation via Man-in-the-Middle
    CAPEC-385 Transaction or Event Tampering via Application API Manipulation
    CAPEC-386 Application API Navigation Remapping
    CAPEC-387 Navigation Remapping To Propagate Malicious Content
    CAPEC-388 Application API Button Hijacking
    CAPEC-492 Regular Expression Exponential Blowup
    CAPEC-510 SaaS User Request Forgery
    CAPEC-59 Session Credential Falsification through Prediction
    CAPEC-60 Reusing Session IDs (aka Session Replay)
    CAPEC-75 Manipulating Writeable Configuration Files
    CAPEC-76 Manipulating Web Input to File System Calls
    CAPEC-89 Pharming

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    References

    http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00005.html
    http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00044.html
    http://support.ntp.org/bin/view/Main/NtpBug3592
    https://bugzilla.redhat.com/show_bug.cgi?id=1716665
    https://lists.debian.org/debian-lts-announce/2020/05/msg00004.html
    https://security.gentoo.org/glsa/202007-12
    https://security.netapp.com/advisory/ntap-20200424-0002/
    https://www.oracle.com//security-alerts/cpujul2021.html
    http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00005.html
    http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00044.html
    http://support.ntp.org/bin/view/Main/NtpBug3592
    https://bugzilla.redhat.com/show_bug.cgi?id=1716665
    https://lists.debian.org/debian-lts-announce/2020/05/msg00004.html
    https://security.gentoo.org/glsa/202007-12
    https://security.netapp.com/advisory/ntap-20200424-0002/
    https://www.oracle.com//security-alerts/cpujul2021.html

    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