NTP before 4.2.8p6 and 4.3.x before 4.3.90, when configured in broadcast mode, allows man-in-the-middle attackers to conduct replay attacks by sniffing the network.
https://www.kb.cert.org/vuls/id/718152
https://security.gentoo.org/glsa/201607-15
https://bto.bluecoat.com/security-advisory/sa113
http://www.ubuntu.com/usn/USN-3096-1
http://www.securitytracker.com/id/1034782
http://www.securityfocus.com/bid/81963
http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20160127-ntpd
http://support.ntp.org/bin/view/Main/NtpBug2935
http://lists.opensuse.org/opensuse-updates/2016-05/msg00114.html
http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00042.html
http://lists.opensuse.org/opensuse-security-announce/2016-07/msg00026.html
http://lists.opensuse.org/opensuse-security-announce/2016-05/msg00048.html
http://lists.opensuse.org/opensuse-security-announce/2016-05/msg00038.html
http://lists.opensuse.org/opensuse-security-announce/2016-05/msg00020.html
http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00060.html
http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00059.html
https://h20566.www2.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-hpesbhf03750en_us
https://h20566.www2.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-hpesbhf03766en_us
https://security.netapp.com/advisory/ntap-20171031-0001/
https://security.FreeBSD.org/advisories/FreeBSD-SA-16:09.ntp.asc
https://cert-portal.siemens.com/productcert/pdf/ssa-497656.pdf
Source: MITRE
Published: 2017-01-30
Updated: 2021-04-26
Type: CWE-254
Base Score: 5.8
Vector: AV:N/AC:M/Au:N/C:N/I:P/A:P
Impact Score: 4.9
Exploitability Score: 8.6
Severity: MEDIUM
Base Score: 6.5
Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:H
Impact Score: 4.2
Exploitability Score: 2.2
Severity: MEDIUM