CVSS: 4.7EPSS: 0%CPEs: 22EXPL: 0CVE-2020-3231 – Cisco IOS Software for Catalyst 2960-L Series Switches and Catalyst CDB-8P Switches 802.1X Authentication Bypass Vulnerability
https://notcve.org/view.php?id=CVE-2020-3231
A vulnerability in the 802.1X feature of Cisco Catalyst 2960-L Series Switches and Cisco Catalyst CDB-8P Switches could allow an unauthenticated, adjacent attacker to forward broadcast traffic before being authenticated on the port. The vulnerability exists because broadcast traffic that is received on the 802.1X-enabled port is mishandled. An attacker could exploit this vulnerability by sending broadcast traffic on the port before being authenticated. A successful exploit could allow the attacker to send and receive broadcast traffic on the 802.1X-enabled port before authentication. Una vulnerabilidad en la funcionalidad 802.1X de Cisco Catalyst 2960-L Series Switches y Cisco Catalyst CDB-8P Switches, podría permitir a un atacante adyacente no autenticado reenviar el tráfico de difusión antes de ser autenticado en el puerto. • https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-c2960L-DpWA9Re4 • CWE-284: Improper Access Control CWE-863: Incorrect Authorization •
CVSS: 7.5EPSS: 0%CPEs: 792EXPL: 0CVE-2020-3230 – Cisco IOS and IOS XE Software Internet Key Exchange Version 2 Denial of Service Vulnerability
https://notcve.org/view.php?id=CVE-2020-3230
A vulnerability in the Internet Key Exchange Version 2 (IKEv2) implementation in Cisco IOS Software and Cisco IOS XE Software could allow an unauthenticated, remote attacker to prevent IKEv2 from establishing new security associations. The vulnerability is due to incorrect handling of crafted IKEv2 SA-Init packets. An attacker could exploit this vulnerability by sending crafted IKEv2 SA-Init packets to the affected device. An exploit could allow the attacker to cause the affected device to reach the maximum incoming negotiation limits and prevent further IKEv2 security associations from being formed. Una vulnerabilidad en la implementación de Internet Key Exchange Versión 2 (IKEv2) en Cisco IOS Software y Cisco IOS XE Software, podría permitir a un atacante remoto no autenticado impedir que IKEv2 establezca nuevas asociaciones de seguridad. • https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ikev2-9p23Jj2a • CWE-20: Improper Input Validation •
CVSS: 8.6EPSS: 0%CPEs: 260EXPL: 0CVE-2020-3226 – Cisco IOS and IOS XE Software Session Initiation Protocol Denial of Service Vulnerability
https://notcve.org/view.php?id=CVE-2020-3226
A vulnerability in the Session Initiation Protocol (SIP) library of Cisco IOS Software and Cisco IOS XE Software could allow an unauthenticated, remote attacker to trigger a reload of an affected device, resulting in a denial of service (DoS) condition. The vulnerability is due to insufficient sanity checks on received SIP messages. An attacker could exploit this vulnerability by sending crafted SIP messages to an affected device. A successful exploit could allow the attacker to cause the affected device to reload, resulting in a denial of service condition. Una vulnerabilidad en la biblioteca Session Initiation Protocol (SIP) de Cisco IOS Software y Cisco IOS XE Software, podría permitir que un atacante remoto no autenticado desencadene una recarga de un dispositivo afectado, resultando en una condición de denegación de servicio (DoS). • https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-sip-Cv28sQw2 • CWE-20: Improper Input Validation •
CVSS: 8.6EPSS: 0%CPEs: 278EXPL: 0CVE-2020-3225 – Cisco IOS and IOS XE Software Common Industrial Protocol Denial of Service Vulnerabilities
https://notcve.org/view.php?id=CVE-2020-3225
Multiple vulnerabilities in the implementation of the Common Industrial Protocol (CIP) feature of Cisco IOS Software and Cisco IOS XE Software could allow an unauthenticated, remote attacker to cause an affected device to reload, resulting in a denial of service (DoS) condition. The vulnerabilities are due to insufficient input processing of CIP traffic. An attacker could exploit these vulnerabilities by sending crafted CIP traffic to be processed by an affected device. A successful exploit could allow the attacker to cause the affected device to reload, resulting in a DoS condition. Múltiples vulnerabilidades en la implementación de la funcionalidad Common Industrial Protocol (CIP) de Cisco IOS Software y Cisco IOS XE Software, podrían permitir a un atacante remoto no autenticado causar la recarga de un dispositivo afectado, resultando en una condición de denegación de servicio (DoS). • https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-cipdos-hkfTZXEx • CWE-20: Improper Input Validation •
CVSS: 8.8EPSS: 0%CPEs: 679EXPL: 0CVE-2020-3217 – Cisco IOS, IOS XE, IOS XR, and NX-OS Software One Platform Kit Remote Code Execution Vulnerability
https://notcve.org/view.php?id=CVE-2020-3217
A vulnerability in the Topology Discovery Service of Cisco One Platform Kit (onePK) in Cisco IOS Software, Cisco IOS XE Software, Cisco IOS XR Software, and Cisco NX-OS Software could allow an unauthenticated, adjacent attacker to execute arbitrary code or cause a denial of service (DoS) condition on an affected device. The vulnerability is due to insufficient length restrictions when the onePK Topology Discovery Service parses Cisco Discovery Protocol messages. An attacker could exploit this vulnerability by sending a malicious Cisco Discovery Protocol message to an affected device. An exploit could allow the attacker to cause a stack overflow, which could allow the attacker to execute arbitrary code with administrative privileges, or to cause a process crash, which could result in a reload of the device and cause a DoS condition. Una vulnerabilidad en el Topology Discovery Service de Cisco One Platform Kit (onePK) en Cisco IOS Software, Cisco IOS XE Software, Cisco IOS XR Software, y Cisco NX-OS Software, podría permitir a un atacante adyacente no autenticado ejecutar código arbitrario o causar una condición de denegación de servicio (DoS) sobre un dispositivo afectado. • https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ios-nxos-onepk-rce-6Hhyt4dC • CWE-20: Improper Input Validation •