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CVSS: 7.4EPSS: 0%CPEs: 77EXPL: 0

A vulnerability in the Cisco ACI Multi-Site CloudSec encryption feature of Cisco Nexus 9000 Series Fabric Switches in ACI mode could allow an unauthenticated, remote attacker to read or modify intersite encrypted traffic. This vulnerability is due to an issue with the implementation of the ciphers that are used by the CloudSec encryption feature on affected switches. An attacker with an on-path position between the ACI sites could exploit this vulnerability by intercepting intersite encrypted traffic and using cryptanalytic techniques to break the encryption. A successful exploit could allow the attacker to read or modify the traffic that is transmitted between the sites. Cisco has not released and will not release software updates that address this vulnerability. • https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-aci-cloudsec-enc-Vs5Wn2sX • CWE-326: Inadequate Encryption Strength CWE-330: Use of Insufficiently Random Values •

CVSS: 7.4EPSS: 0%CPEs: 62EXPL: 0

A vulnerability in the Link Layer Discovery Protocol (LLDP) feature for Cisco Nexus 9000 Series Fabric Switches in Application Centric Infrastructure (ACI) Mode could allow an unauthenticated, adjacent attacker to cause a memory leak, which could result in an unexpected reload of the device. This vulnerability is due to incorrect error checking when parsing ingress LLDP packets. An attacker could exploit this vulnerability by sending a steady stream of crafted LLDP packets to an affected device. A successful exploit could allow the attacker to cause a memory leak, which could result in a denial of service (DoS) condition when the device unexpectedly reloads. Note: This vulnerability cannot be exploited by transit traffic through the device. • https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-aci-lldp-dos-ySCNZOpX • CWE-401: Missing Release of Memory after Effective Lifetime CWE-789: Memory Allocation with Excessive Size Value •

CVSS: 8.8EPSS: 0%CPEs: 17EXPL: 0

A vulnerability in the Link Layer Discovery Protocol (LLDP) implementation for Cisco FXOS Software and Cisco NX-OS Software could allow an unauthenticated, adjacent attacker to cause a denial of service (DoS) condition when the device unexpectedly reloads. The vulnerability is due to improper input validation of certain type, length, value (TLV) fields of the LLDP frame header. An attacker could exploit this vulnerability by sending a crafted LLDP packet to an interface on the targeted device. A successful exploit could allow the attacker to cause the switch to reload unexpectedly. Una vulnerabilidad en la implementación LLDP (Link Layer Discovery Protocol) para Cisco FXOS Software y Cisco NX-OS Software podría permitir que un atacante adyacente no autenticado cree una condición de denegación de servicio (DoS) cuando el dispositivo se recarga inesperadamente. • http://www.securityfocus.com/bid/105674 http://www.securitytracker.com/id/1041919 https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20181017-fxnx-os-dos • CWE-20: Improper Input Validation •

CVSS: 4.2EPSS: 0%CPEs: 3788EXPL: 0

Cisco IOS 12.0 through 15.6, Adaptive Security Appliance (ASA) Software 7.0.1 through 9.7.1.2, NX-OS 4.0 through 12.0, and IOS XE 3.6 through 3.18 are affected by a vulnerability involving the Open Shortest Path First (OSPF) Routing Protocol Link State Advertisement (LSA) database. This vulnerability could allow an unauthenticated, remote attacker to take full control of the OSPF Autonomous System (AS) domain routing table, allowing the attacker to intercept or black-hole traffic. The attacker could exploit this vulnerability by injecting crafted OSPF packets. Successful exploitation could cause the targeted router to flush its routing table and propagate the crafted OSPF LSA type 1 update throughout the OSPF AS domain. To exploit this vulnerability, an attacker must accurately determine certain parameters within the LSA database on the target router. • http://www.securityfocus.com/bid/100005 http://www.securitytracker.com/id/1039005 http://www.securitytracker.com/id/1039006 http://www.securitytracker.com/id/1039007 https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20170727-ospf • 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 •