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CVSS: 8.6EPSS: 0%CPEs: 67EXPL: 0

A vulnerability in the authentication, authorization, and accounting (AAA) implementation of Cisco Firepower Extensible Operating System (FXOS) and NX-OS System Software could allow an unauthenticated, remote attacker to cause an affected device to reload. The vulnerability occurs because AAA processes prevent the NX-OS System Manager from receiving keepalive messages when an affected device receives a high rate of login attempts, such as in a brute-force login attack. System memory can run low on the FXOS devices under the same conditions, which could cause the AAA process to unexpectedly restart or cause the device to reload. An attacker could exploit this vulnerability by performing a brute-force login attack against a device that is configured with AAA security services. A successful exploit could allow the attacker to cause the affected device to reload. • http://www.securityfocus.com/bid/101493 http://www.securitytracker.com/id/1039614 https://support.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-hpesbst03846en_us https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20171018-aaavty • CWE-770: Allocation of Resources Without Limits or Throttling •

CVSS: 5.3EPSS: 0%CPEs: 15EXPL: 0

An Access-Control Filtering Mechanisms Bypass vulnerability in certain access-control filtering mechanisms on Cisco Nexus 7000 Series Switches could allow an unauthenticated, remote attacker to bypass defined traffic configured within an access control list (ACL) on the affected system. More Information: CSCtz59354. Known Affected Releases: 5.2(4) 6.1(3)S5 6.1(3)S6 6.2(1.121)S0 7.2(1)D1(1) 7.3(0)ZN(0.161) 7.3(1)N1(0.1). Known Fixed Releases: 7.3(0)D1(1) 6.2(2) 6.1(5) 8.3(0)KMT(0.24) 8.3(0)CV(0.337) 7.3(1)N1(1) 7.3(0)ZN(0.210) 7.3(0)ZN(0.177) 7.3(0)ZD(0.194) 7.3(0)TSH(0.99) 7.3(0)SC(0.14) 7.3(0)RSP(0.7) 7.3(0)N1(1) 7.3(0)N1(0.193) 7.3(0)IZN(0.13) 7.3(0)IB(0.102) 7.3(0)GLF(0.44) 7.3(0)D1(0.178) 7.1(0)D1(0.14) 7.0(3)ITI2(1.6) 7.0(3)ISH1(2.13) 7.0(3)IFD6(0.78) 7.0(3)IFD6(0) 7.0(3)IDE6(0.12) 7.0(3)IDE6(0) 7.0(3)I2(1) 7.0(3)I2(0.315) 7.0(1)ZD(0.3) 7.0(0)ZD(0.84) 6.2(1.149)S0 6.2(0.285) 6.1(5.32)S0 6.1(4.97)S0 6.1(2.30)S0. Vulnerabilidad en mecanismos de filtrado de control de acceso afecta a ciertos mecanismos de filtrado de control de acceso en los conmutadores Cisco Nexus serie 7000, lo que podría permitir a un atacante remoto no autenticado omitir el tráfico definido configurado en una lista de control de acceso (ACL) del sistema afectado. • http://www.securityfocus.com/bid/96930 http://www.securitytracker.com/id/1038049 https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20170315-cns • CWE-20: Improper Input Validation •

CVSS: 7.1EPSS: 0%CPEs: 65EXPL: 0

Cisco NX-OS 4.0 through 7.3 and 11.0 through 11.2 on 1000v, 2000, 3000, 3500, 5000, 5500, 5600, 6000, 7000, 7700, and 9000 devices allows remote attackers to cause a denial of service (device reload) by leveraging a peer relationship to send a crafted BGP UPDATE message, aka Bug IDs CSCuq77105 and CSCux11417. Cisco NX-OS 4.0 hasta la versión 7.3 y 11.0 hasta la versión 11.2 en dispositivos 1000v, 2000, 3000, 3500, 5000, 5500, 5600, 6000, 7000, 7700 y 9000 permite a atacantes remotos provocar una denegación de servicio (recarga de dispositivo) aprovechando una relación entre iguales para enviar un mensaje BGP UPDATE manipulado, vulnerabilidad también conocida como Bug IDs CSCuq77105 y CSCux11417. • http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20161005-bgp http://www.securityfocus.com/bid/93417 http://www.securitytracker.com/id/1036950 • CWE-20: Improper Input Validation •

CVSS: 9.0EPSS: 0%CPEs: 250EXPL: 0

Cisco NX-OS 4.0 through 7.3 on Multilayer Director and Nexus 1000V, 2000, 3000, 3500, 4000, 5000, 5500, 5600, 6000, 7000, 7700, and 9000 devices allows remote authenticated users to bypass intended AAA restrictions and obtain privileged CLI access via crafted parameters in an SSH connection negotiation, aka Bug IDs CSCum35502, CSCuw78669, CSCuw79754, and CSCux88492. Cisco NX-OS 4.0 hasta la versión 7.3 en Multilayer Director y dispositivos Nexus 1000V, 2000, 3000, 3500, 4000, 5000, 5500, 5600, 6000, 7000, 7700 y 9000 permite a usuarios remotos autenticados eludir restricciones AAA destinadas y obtener un acceso CLI privilegiado a través de parámetros manipulados en una negociación de conexión SSH, vulnerabilidad también conocida como Bug IDs CSCum35502, CSCuw78669, CSCuw79754 y CSCux88492. • http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20161005-nxaaa http://www.securityfocus.com/bid/93410 http://www.securitytracker.com/id/1036947 • CWE-264: Permissions, Privileges, and Access Controls •

CVSS: 7.8EPSS: 0%CPEs: 145EXPL: 0

Cisco NX-OS 4.1 through 7.3 and 11.0 through 11.2 on Nexus 2000, 5000, 5500, 5600, 6000, 7000, 7700, and 9000 devices allows remote attackers to cause a denial of service (device crash) via crafted IPv4 DHCP packets to the (1) DHCPv4 relay agent or (2) smart relay agent, aka Bug IDs CSCuq24603, CSCur93159, CSCus21693, and CSCut76171. Cisco NX-OS 4.1 hasta la versión 7.3 y 11.0 hasta la versión 11.2 en dispositivos Nexus 2000, 5000, 5500, 5600, 6000, 7000, 7700 y 9000 permite a atacantes remotos provocar una denegación de servicio (caída de dispositivo) a través de paquetes DHCP IPv4 manipulados a los agentes de retransmisión (1) DHCPv4 o (2) smart, vulnerabilidad también conocida como Bug IDs CSCuq24603, CSCur93159, CSCus21693 y CSCut76171. • http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20161005-dhcp1 http://www.securityfocus.com/bid/93406 http://www.securitytracker.com/id/1036948 • CWE-399: Resource Management Errors •