CVSS: 7.5EPSS: 5%CPEs: 92EXPL: 0CVE-2016-7426 – ntp: Client rate limiting and server responses
https://notcve.org/view.php?id=CVE-2016-7426
NTP before 4.2.8p9 rate limits responses received from the configured sources when rate limiting for all associations is enabled, which allows remote attackers to cause a denial of service (prevent responses from the sources) by sending responses with a spoofed source address. NTP en versiones anteriores a 4.2.8p9 limita la clasificación de respuestas recibidas desde las fuentes configuradas cuando la limitación de clasificación para todas las asociaciones está habilitado, lo que permite a atacantes remotos provocar una denegación de servicio (prevenir las respuestas de las fuentes) enviando respuestas con una dirección de origen suplantada. It was found that when ntp is configured with rate limiting for all associations the limits are also applied to responses received from its configured sources. A remote attacker who knows the sources can cause a denial of service by preventing ntpd from accepting valid responses from its sources. • http://nwtime.org/ntp428p9_release http://rhn.redhat.com/errata/RHSA-2017-0252.html http://support.ntp.org/bin/view/Main/NtpBug3071 http://support.ntp.org/bin/view/Main/SecurityNotice#Recent_Vulnerabilities http://www.securityfocus.com/bid/94451 http://www.securitytracker.com/id/1037354 https://bto.bluecoat.com/security-advisory/sa139 https://h20566.www2.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-hpesbux03706en_us https://security.FreeBSD.org/advisories/FreeBSD-SA- • CWE-400: Uncontrolled Resource Consumption •
CVSS: 5.3EPSS: 1%CPEs: 1EXPL: 0CVE-2015-8139
https://notcve.org/view.php?id=CVE-2015-8139
ntpq in NTP before 4.2.8p7 allows remote attackers to obtain origin timestamps and then impersonate peers via unspecified vectors. ntpq en NTP en versiones anteriores a 4.2.8p7 permite a atacantes remotos obtener timestamps de origen y luego suplantar a sus pares a través de vectores no especificados. • http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00059.html http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00060.html http://lists.opensuse.org/opensuse-security-announce/2016-05/msg00020.html http://lists.opensuse.org/opensuse-security-announce/2016-05/msg00038.html http://lists.opensuse.org/opensuse-security-announce/2016-05/msg00048.html http://lists.opensuse.org/opensuse-updates/2016-05/msg00114.html http://support.ntp.org/bin/view/Main/NtpBug2946 http://tools&# • CWE-284: Improper Access Control •
CVSS: 5.8EPSS: 3%CPEs: 1EXPL: 0CVE-2015-8140
https://notcve.org/view.php?id=CVE-2015-8140
The ntpq protocol in NTP before 4.2.8p7 allows remote attackers to conduct replay attacks by sniffing the network. El protocolo ntpq en NTP en versiones anteriores a 4.2.8p7 permite a los atacantes remotos realizar ataques de repetición para rastrear la red. • http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00059.html http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00060.html http://lists.opensuse.org/opensuse-security-announce/2016-05/msg00020.html http://lists.opensuse.org/opensuse-security-announce/2016-05/msg00038.html http://lists.opensuse.org/opensuse-security-announce/2016-05/msg00048.html http://lists.opensuse.org/opensuse-updates/2016-05/msg00114.html http://support.ntp.org/bin/view/Main/NtpBug2947 http://tools&# • CWE-284: Improper Access Control •
CVSS: 7.5EPSS: 3%CPEs: 41EXPL: 0CVE-2016-4953
https://notcve.org/view.php?id=CVE-2016-4953
ntpd in NTP 4.x before 4.2.8p8 allows remote attackers to cause a denial of service (ephemeral-association demobilization) by sending a spoofed crypto-NAK packet with incorrect authentication data at a certain time. ntpd en NTP 4.x en versiones anteriores a 4.2.8p8 permite a atacantes remotos provocar una denegación de servicio (desmovilización de asociación efímera) mediante el envío de un paquete crypto-NAK falsificado con datos de autenticación incorrectos en un momento determinado. • http://bugs.ntp.org/3045 http://lists.opensuse.org/opensuse-security-announce/2016-06/msg00018.html http://lists.opensuse.org/opensuse-security-announce/2016-06/msg00020.html http://lists.opensuse.org/opensuse-security-announce/2016-06/msg00023.html http://lists.opensuse.org/opensuse-security-announce/2016-06/msg00024.html http://lists.opensuse.org/opensuse-security-announce/2016-06/msg00028.html http://lists.opensuse.org/opensuse-security-announce/2016-06/msg00040.html http://lists.opensuse.org/ • CWE-287: Improper Authentication •
CVSS: 7.5EPSS: 2%CPEs: 41EXPL: 0CVE-2016-4954
https://notcve.org/view.php?id=CVE-2016-4954
The process_packet function in ntp_proto.c in ntpd in NTP 4.x before 4.2.8p8 allows remote attackers to cause a denial of service (peer-variable modification) by sending spoofed packets from many source IP addresses in a certain scenario, as demonstrated by triggering an incorrect leap indication. La función process_packet en ntp_proto.c en ntpd en NTP 4.x en versiones anteriores a 4.2.8p8 permite a atacantes remotos provocar una denegación de servicio (modificación de par variable) enviando paquetes falsificados desde muchas direcciones IP de origen en un determinado escenario, según lo demostrado desencadenando una indicación de salto incorrecta. • http://bugs.ntp.org/3044 http://lists.opensuse.org/opensuse-security-announce/2016-06/msg00018.html http://lists.opensuse.org/opensuse-security-announce/2016-06/msg00020.html http://lists.opensuse.org/opensuse-security-announce/2016-06/msg00023.html http://lists.opensuse.org/opensuse-security-announce/2016-06/msg00024.html http://lists.opensuse.org/opensuse-security-announce/2016-06/msg00028.html http://lists.opensuse.org/opensuse-security-announce/2016-06/msg00040.html http://lists.opensuse.org/ • CWE-362: Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition') •