CVSS: 8.6EPSS: 0%CPEs: 54EXPL: 0CVE-2019-1814 – Cisco Small Business 300 Series Managed Switches DHCP Denial of Service Vulnerability
https://notcve.org/view.php?id=CVE-2019-1814
A vulnerability in the interactions between the DHCP and TFTP features for Cisco Small Business 300 Series (Sx300) Managed Switches could allow an unauthenticated, remote attacker to cause the device to become low on system memory, which in turn could lead to an unexpected reload of the device and result in a denial of service (DoS) condition on an affected device. The vulnerability is due to a failure to free system memory when an unexpected DHCP request is received. An attacker could exploit this vulnerability by sending a crafted DHCP packet to the targeted device. A successful exploit could allow the attacker to cause an unexpected reload of the device. Una vulnerabilidad en las interacciones entre las funciones DHCP y TFTP para Cisco Small Business 300 Series (Sx300) Managed Switches, podría permitir que un atacante remoto no autenticado cause que el dispositivo tenga una disminución sobre la memoria del sistema, que a su vez podría generar una recarga inesperada de el dispositivo resultando en una condición de denegación de servicio (DoS) en el dispositivo afectado. • http://www.securityfocus.com/bid/108344 https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190515-sb300sms-dhcp • CWE-400: Uncontrolled Resource Consumption CWE-770: Allocation of Resources Without Limits or Throttling •
CVSS: 7.7EPSS: 0%CPEs: 210EXPL: 0CVE-2019-1806 – Cisco Small Business Series Switches Simple Network Management Protocol Denial of Service Vulnerability
https://notcve.org/view.php?id=CVE-2019-1806
A vulnerability in the Simple Network Management Protocol (SNMP) input packet processor of Cisco Small Business Sx200, Sx300, Sx500, ESW2 Series Managed Switches and Small Business Sx250, Sx350, Sx550 Series Switches could allow an authenticated, remote attacker to cause the SNMP application of an affected device to cease processing traffic, resulting in the CPU utilization reaching one hundred percent. Manual intervention may be required before a device resumes normal operations. The vulnerability is due to improper validation of SNMP protocol data units (PDUs) in SNMP packets. An attacker could exploit this vulnerability by sending a malicious SNMP packet to an affected device. A successful exploit could allow the attacker to cause the device to cease forwarding traffic, which could result in a denial of service (DoS) condition. • http://www.securityfocus.com/bid/108335 https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190515-sb-snmpdos • CWE-20: Improper Input Validation CWE-770: Allocation of Resources Without Limits or Throttling •
CVSS: 7.2EPSS: 0%CPEs: 228EXPL: 0CVE-2019-1859 – Cisco Small Business Switches Secure Shell Certificate Authentication Bypass Vulnerability
https://notcve.org/view.php?id=CVE-2019-1859
A vulnerability in the Secure Shell (SSH) authentication process of Cisco Small Business Switches software could allow an attacker to bypass client-side certificate authentication and revert to password authentication. The vulnerability exists because OpenSSH mishandles the authentication process. An attacker could exploit this vulnerability by attempting to connect to the device via SSH. A successful exploit could allow the attacker to access the configuration as an administrative user if the default credentials are not changed. There are no workarounds available; however, if client-side certificate authentication is enabled, disable it and use strong password authentication. • https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190501-scbv • CWE-285: Improper Authorization CWE-295: Improper Certificate Validation •
CVSS: 6.1EPSS: 0%CPEs: 54EXPL: 0CVE-2018-0465 – Cisco Small Business 300 Series Managed Switches Cross-Site Scripting Vulnerability
https://notcve.org/view.php?id=CVE-2018-0465
A vulnerability in the web-based management interface of Cisco Small Business 300 Series Managed Switches could allow an unauthenticated, remote attacker to conduct a cross-site scripting (XSS) attack against a user of the interface of an affected system. The vulnerability exists because the affected management interface performs insufficient validation of user-supplied input. An attacker could exploit this vulnerability by persuading a user of the interface to click a malicious link. A successful exploit could allow the attacker to execute arbitrary script code in the context of the affected interface or allow the attacker to access sensitive, browser-based information. Una vulnerabilidad en la interfaz de gestión web de Cisco Small Business 300 Series Managed Switches podría permitir que un atacante remoto no autenticado lleve a cabo un ataque de Cross-Site Scripting (XSS) reflejado contra un usuario de la interfaz de un sistema afectado. • https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20181003-300-switch-xss • CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') •
CVSS: 5.4EPSS: 0%CPEs: 56EXPL: 0CVE-2018-0407
https://notcve.org/view.php?id=CVE-2018-0407
A vulnerability in the web-based management interface of Cisco Small Business 300 Series (Sx300) Managed Switches could allow an authenticated, remote attacker to conduct a persistent cross-site scripting (XSS) attack against a user of the web-based management interface of an affected device. The vulnerability is due to insufficient validation of user-supplied input by the web-based management interface of an affected device. An attacker could exploit this vulnerability by persuading a user of the interface to click a crafted link. A successful exploit could allow the attacker to execute arbitrary script code in the context of the interface or allow the attacker to access sensitive browser-based information. Cisco Bug IDs: CSCvi87326. • http://www.securityfocus.com/bid/104947 https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180801-sb-pxss • CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') •