CVSS: 7.5EPSS: 9%CPEs: 90EXPL: 0CVE-2015-7979 – ntp: off-path denial of service on authenticated broadcast mode
https://notcve.org/view.php?id=CVE-2015-7979
NTP before 4.2.8p6 and 4.3.x before 4.3.90 allows remote attackers to cause a denial of service (client-server association tear down) by sending broadcast packets with invalid authentication to a broadcast client. NTP en versiones anteriores a 4.2.8p6 y 4.3.x en versiones anteriores a 4.3.90 permite a atacantes remotos causar una denegación de servicio (asociación cliente-servidor) por el envío de paquetes de difusión con autenticación no válida a un cliente transmisor. It was found that when NTP was configured in broadcast mode, a remote attacker could broadcast packets with bad authentication to all clients. The clients, upon receiving the malformed packets, would break the association with the broadcast server, causing them to become out of sync over a longer period of time. • http://lists.fedoraproject.org/pipermail/package-announce/2016-February/177507.html http://lists.fedoraproject.org/pipermail/package-announce/2016-January/176434.html 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&# • CWE-19: Data Processing Errors CWE-20: Improper Input Validation •
CVSS: 6.2EPSS: 0%CPEs: 90EXPL: 0CVE-2015-7975
https://notcve.org/view.php?id=CVE-2015-7975
The nextvar function in NTP before 4.2.8p6 and 4.3.x before 4.3.90 does not properly validate the length of its input, which allows an attacker to cause a denial of service (application crash). La función nextvar en NTP en versiones anteriores a 4.2.8p6 y 4.3.x en versiones anteriores a 4.3.90 no valida correctamente la longitud de su entrada, lo que permite a un atacante provocar una denegación de servicio (caída de la aplicación). • 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-security-announce/2016-07/msg00026.html http://lists.opensuse.org/opensuse-security-announce/2016-08 • CWE-119: Improper Restriction of Operations within the Bounds of a Memory Buffer •
CVSS: 4.3EPSS: 0%CPEs: 108EXPL: 0CVE-2015-7976
https://notcve.org/view.php?id=CVE-2015-7976
The ntpq saveconfig command in NTP 4.1.2, 4.2.x before 4.2.8p6, 4.3, 4.3.25, 4.3.70, and 4.3.77 does not properly filter special characters, which allows attackers to cause unspecified impact via a crafted filename. El comando savconfig ntpq en NTP 4.1.2, 4.2.x en versiones anteriores a 4.2.8p6, 4.3, 4.3.25, 4.3.70 y 4.3.77 no filtra adecuadamente caracteres especiales, lo que permite a atacantes causar un impacto no especificado a través de un nombre de archivo manipulado. • 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-security-announce/2016-07/msg00026.html http://lists.opensuse.org/opensuse-security-announce/2016-08 • CWE-254: 7PK - Security Features •
CVSS: 6.5EPSS: 0%CPEs: 81EXPL: 0CVE-2015-7973
https://notcve.org/view.php?id=CVE-2015-7973
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. NTP en versiones anteriores a 4.2.8p6 y 4.3.x en versiones anteriores a 4.3.90, cuando está configurado en modo de difusión, permite a atacantes man-in-the-middle realizar ataques de repetición rastreando 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-security-announce/2016-07/msg00026.html http://lists.opensuse.org/opensuse-security-announce/2016-08 • CWE-254: 7PK - Security Features •
CVSS: 7.7EPSS: 0%CPEs: 29EXPL: 1CVE-2015-7974 – ntp: missing key check allows impersonation between authenticated peers (VU#357792)
https://notcve.org/view.php?id=CVE-2015-7974
NTP 4.x before 4.2.8p6 and 4.3.x before 4.3.90 do not verify peer associations of symmetric keys when authenticating packets, which might allow remote attackers to conduct impersonation attacks via an arbitrary trusted key, aka a "skeleton key." NTP 4.x en versiones anteriores a 4.2.8p6 y 4.3.x en versiones anteriores a 4.3.90 no verifica las asociaciones del par de las claves simétricas cuando autentica paquetes, lo que podría permitir a atacante remotos llevar a cabo ataques de suplantación de identidad a través de una clave de confianza arbitraria, también conocida como "skeleton key". A flaw was found in the way NTP verified trusted keys during symmetric key authentication. An authenticated client (A) could use this flaw to modify a packet sent between a server (B) and a client (C) using a key that is different from the one known to the client (A). • http://bugs.ntp.org/show_bug.cgi?id=2936 http://rhn.redhat.com/errata/RHSA-2016-2583.html http://support.ntp.org/bin/view/Main/NtpBug2936 http://www.debian.org/security/2016/dsa-3629 http://www.securityfocus.com/bid/81960 http://www.securitytracker.com/id/1034782 http://www.talosintel.com/reports/TALOS-2016-0071 https://cert-portal.siemens.com/productcert/pdf/ssa-497656.pdf https://h20566.www2.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-hpesbhf03750e • CWE-287: Improper Authentication CWE-304: Missing Critical Step in Authentication •