CVSS: 5.3EPSS: 0%CPEs: 1EXPL: 0CVE-2016-1550 – ntp: libntp message digest disclosure
https://notcve.org/view.php?id=CVE-2016-1550
An exploitable vulnerability exists in the message authentication functionality of libntp in ntp 4.2.8p4 and NTPSec a5fb34b9cc89b92a8fef2f459004865c93bb7f92. An attacker can send a series of crafted messages to attempt to recover the message digest key. Existe una vulnerabilidad explotable en el mensaje de autenticación de la función del libntp en ntp 4.2.8p4 y NTPSec a5fb34b9cc89b92a8fef2f459004865c93bb7f92. Un atacante puede enviar series de mensajes manipulados para intentar el mensaje de dirección de clave. A flaw was found in the way NTP's libntp performed message authentication. • http://lists.fedoraproject.org/pipermail/package-announce/2016-May/183647.html http://lists.fedoraproject.org/pipermail/package-announce/2016-May/184669.html http://lists.opensuse.org/opensuse-security-announce/2016-05/msg00034.html http://lists.opensuse.org/opensuse-security-announce/2016-05/msg00037.html http://lists.opensuse.org/opensuse-security-announce/2016-05/msg00052.html http://lists.opensuse.org/opensuse-security-announce/2016-06/msg00001.html http://lists.opensuse.org/opensuse-security-announce/2016& • CWE-200: Exposure of Sensitive Information to an Unauthorized Actor •
CVSS: 5.3EPSS: 0%CPEs: 93EXPL: 0CVE-2016-2517
https://notcve.org/view.php?id=CVE-2016-2517
NTP before 4.2.8p7 and 4.3.x before 4.3.92 allows remote attackers to cause a denial of service (prevent subsequent authentication) by leveraging knowledge of the controlkey or requestkey and sending a crafted packet to ntpd, which changes the value of trustedkey, controlkey, or requestkey. NOTE: this vulnerability exists because of a CVE-2016-2516 regression. NTP en versiones anteriores a 4.2.8p7 y 4.3.x en versiones anteriores a 4.3.92 permite a los atacantes remotos provocar una denegación de servicio (evitar la posterior autenticación) aprovechando el conocimiento de la clave de control o requestkey y enviando un paquete creado a ntpd, que cambia el valor de trustedkey, Controlkey o requestkey. NOTA: esta vulnerabilidad existe debido a una regresión de la CVE-2016-2516. • http://support.ntp.org/bin/view/Main/NtpBug3010 http://www.oracle.com/technetwork/topics/security/bulletinapr2016-2952098.html http://www.securityfocus.com/bid/88189 http://www.securitytracker.com/id/1035705 https://security.FreeBSD.org/advisories/FreeBSD-SA-16:16.ntp.asc https://security.gentoo.org/glsa/201607-15 https://security.netapp.com/advisory/ntap-20171004-0002 https://www.kb.cert.org/vuls/id/718152 • CWE-20: Improper Input Validation •
CVSS: 7.2EPSS: 0%CPEs: 1EXPL: 1CVE-2016-1548 – ntp: ntpd switching to interleaved mode with spoofed packets
https://notcve.org/view.php?id=CVE-2016-1548
An attacker can spoof a packet from a legitimate ntpd server with an origin timestamp that matches the peer->dst timestamp recorded for that server. After making this switch, the client in NTP 4.2.8p4 and earlier and NTPSec aa48d001683e5b791a743ec9c575aaf7d867a2b0c will reject all future legitimate server responses. It is possible to force the victim client to move time after the mode has been changed. ntpq gives no indication that the mode has been switched. Un atacante puede suplantar un paquete de un servidor ntpd legítimo con una marca de tiempo de origen que coincida con la marca de tiempo peer->dst registrada para ese servidor. Después de hacer este cambio, el cliente en NTP 4.2.8p4 y versiones anteriores y NTPSec aa48d001683e5b791a743ec9c575aaf7d867a2b0c rechazarán todas las futuras respuestas legítimas del servidor. • http://lists.fedoraproject.org/pipermail/package-announce/2016-May/183647.html http://lists.fedoraproject.org/pipermail/package-announce/2016-May/184669.html http://lists.opensuse.org/opensuse-security-announce/2016-05/msg00034.html http://lists.opensuse.org/opensuse-security-announce/2016-05/msg00037.html http://lists.opensuse.org/opensuse-security-announce/2016-05/msg00052.html http://lists.opensuse.org/opensuse-security-announce/2016-06/msg00001.html http://lists.opensuse.org/opensuse-security-announce/2016& • CWE-19: Data Processing Errors •
CVSS: 6.5EPSS: 0%CPEs: 1EXPL: 0CVE-2016-1549
https://notcve.org/view.php?id=CVE-2016-1549
A malicious authenticated peer can create arbitrarily-many ephemeral associations in order to win the clock selection algorithm in ntpd in NTP 4.2.8p4 and earlier and NTPsec 3e160db8dc248a0bcb053b56a80167dc742d2b74 and a5fb34b9cc89b92a8fef2f459004865c93bb7f92 and modify a victim's clock. Un par malicioso autenticado puede crear arbitrariamente muchas asociaciones efímeras para ganar el algoritmo de selección de reloj en ntpd en NTP 4.2.8p4 y versiones anteriores y NTPsec 3e160db8dc248a0bcb053b56a80167dc742d2b74 y a5fb34b9cc89b92a8fef2f459004865c93bb7f92 y modificar un reloj de una víctima. • http://www.oracle.com/technetwork/topics/security/bulletinapr2016-2952098.html http://www.securityfocus.com/bid/88200 http://www.securitytracker.com/id/1035705 http://www.talosintelligence.com/reports/TALOS-2016-0083 https://security.FreeBSD.org/advisories/FreeBSD-SA-16:16.ntp.asc https://security.gentoo.org/glsa/201607-15 https://security.netapp.com/advisory/ntap-20171004-0002 https://support.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-hpesbux03962en_us https://www.synolo • CWE-19: Data Processing Errors •
CVSS: 5.3EPSS: 0%CPEs: 1EXPL: 0CVE-2016-1547 – ntp: crypto-NAK preemptable association denial of service
https://notcve.org/view.php?id=CVE-2016-1547
An off-path attacker can cause a preemptible client association to be demobilized in NTP 4.2.8p4 and earlier and NTPSec a5fb34b9cc89b92a8fef2f459004865c93bb7f92 by sending a crypto NAK packet to a victim client with a spoofed source address of an existing associated peer. This is true even if authentication is enabled. Un atacante fuera de ruta puede provocar que una asociación de clientes preventiva sea desmovilizada en NTP 4.2.8p4 y versiones anteriores y NTPSec a5fb34b9cc89b92a8fef2f459004865c93bb7f92 enviando un paquete NAK encriptado a un cliente víctima con una dirección fuente suplantada de un asociado existente. Esto es cierto incluso si la autenticación está habilitada. A denial of service flaw was found in the way NTP handled preemptable client associations. • http://rhn.redhat.com/errata/RHSA-2016-1552.html http://www.debian.org/security/2016/dsa-3629 http://www.oracle.com/technetwork/topics/security/bulletinapr2016-2952098.html http://www.oracle.com/technetwork/topics/security/linuxbulletinapr2016-2952096.html http://www.securityfocus.com/bid/88276 http://www.securitytracker.com/id/1035705 http://www.talosintelligence.com/reports/TALOS-2016-0081 https://access.redhat.com/errata/RHSA-2016:1141 https://cert-portal.siemens.com/productcert/pdf/ssa- • CWE-20: Improper Input Validation •