CVSS: 8.8EPSS: 0%CPEs: 26EXPL: 0CVE-2019-1901 – Cisco Nexus 9000 Series ACI Mode Switch Software Link Layer Discovery Protocol Buffer Overflow Vulnerability
https://notcve.org/view.php?id=CVE-2019-1901
A vulnerability in the Link Layer Discovery Protocol (LLDP) subsystem of Cisco Nexus 9000 Series Application Centric Infrastructure (ACI) Mode Switch Software could allow an adjacent, unauthenticated attacker to cause a denial of service (DoS) condition or execute arbitrary code with root privileges. 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 the targeted device. A successful exploit may lead to a buffer overflow condition that could either cause a DoS condition or allow the attacker to execute arbitrary code with root privileges. Note: This vulnerability cannot be exploited by transit traffic through the device; the crafted packet must be targeted to a directly connected interface. • https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190731-nxos-bo • CWE-119: Improper Restriction of Operations within the Bounds of a Memory Buffer •
CVSS: 8.6EPSS: 0%CPEs: 205EXPL: 0CVE-2019-1858 – Cisco FXOS and NX-OS Software Simple Network Management Protocol Denial of Service Vulnerability
https://notcve.org/view.php?id=CVE-2019-1858
A vulnerability in the Simple Network Management Protocol (SNMP) input packet processor of Cisco FXOS Software and Cisco NX-OS Software could allow an unauthenticated, remote attacker to cause the SNMP application to leak system memory, which could cause an affected device to restart unexpectedly. The vulnerability is due to improper error handling when processing inbound SNMP packets. An attacker could exploit this vulnerability by sending multiple crafted SNMP packets to an affected device. A successful exploit could allow the attacker to cause the SNMP application to leak system memory because of an improperly handled error condition during packet processing. Over time, this memory leak could cause the SNMP application to restart multiple times, leading to a system-level restart and a denial of service (DoS) condition. • http://www.securityfocus.com/bid/108358 https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190515-nxos-snmp-dos • CWE-20: Improper Input Validation CWE-755: Improper Handling of Exceptional Conditions •
CVSS: 7.2EPSS: 0%CPEs: 73EXPL: 0CVE-2019-1811 – Cisco NX-OS CLI Command Software Image Signature Verification Vulnerabilities
https://notcve.org/view.php?id=CVE-2019-1811
A vulnerability in the Image Signature Verification feature of Cisco NX-OS Software could allow an authenticated, local attacker with administrator-level credentials to install a malicious software image on an affected device. The vulnerability exists because software digital signatures are not properly verified during CLI command execution. An attacker could exploit this vulnerability to install an unsigned software image on an affected device. Una vulnerabilidad en la función Image Signature Verification del programa Cisco NX-OS podría permitir que un atacante local autenticado con credenciales de administrador para instalar una imagen de programa malintencionado en un dispositivo afectado. La vulnerabilidad se debe a que las firmas digitales del programa no se verifican correctamente durante la ejecución del comando CLI. • http://www.securityfocus.com/bid/108425 https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190515-nxos-sisv2 • CWE-347: Improper Verification of Cryptographic Signature •
CVSS: 7.2EPSS: 0%CPEs: 73EXPL: 0CVE-2019-1812 – Cisco NX-OS CLI Command Software Image Signature Verification Vulnerabilities
https://notcve.org/view.php?id=CVE-2019-1812
A vulnerability in the Image Signature Verification feature of Cisco NX-OS Software could allow an authenticated, local attacker with administrator-level credentials to install a malicious software image on an affected device. The vulnerability exists because software digital signatures are not properly verified during CLI command execution. An attacker could exploit this vulnerability to install an unsigned software image on an affected device. Una vulnerabilidad en la función Image Signature Verification del software Cisco NX-OS podría permitir que un atacante local autenticado con credenciales de administrador para instalar una imagen de software malintencionado en un dispositivo afectado. La vulnerabilidad se debe a que las firmas digitales del software no se verifican correctamente durante la ejecución del comando CLI. • http://www.securityfocus.com/bid/108425 https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190515-nxos-sisv2 • CWE-347: Improper Verification of Cryptographic Signature •
CVSS: 7.2EPSS: 0%CPEs: 73EXPL: 0CVE-2019-1813 – Cisco NX-OS CLI Command Software Image Signature Verification Vulnerability
https://notcve.org/view.php?id=CVE-2019-1813
A vulnerability in the Image Signature Verification feature of Cisco NX-OS Software could allow an authenticated, local attacker with administrator-level credentials to install a malicious software image on an affected device. The vulnerability exists because software digital signatures are not properly verified during CLI command execution. An attacker could exploit this vulnerability to install an unsigned software image on an affected device. Una vulnerabilidad en la función Image Signature Verification del programa NX-OS de Cisco podría permitir que un atacante local autenticado con credenciales de administrador para instalar una imagen de programa malintencionado en un dispositivo afectado. La vulnerabilidad se debe a que las firmas digitales del programa no se verifican correctamente durante la ejecución del comando CLI. • http://www.securityfocus.com/bid/108425 https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190515-nxos-sisv2 • CWE-347: Improper Verification of Cryptographic Signature •