CVSS: 6.7EPSS: 0%CPEs: 12EXPL: 0CVE-2019-1810 – Cisco Nexus 3000 Series and 9000 Series Switches in NX-OS Mode CLI Command Software Image Signature Verification Vulnerability
https://notcve.org/view.php?id=CVE-2019-1810
A vulnerability in the Image Signature Verification feature used in an NX-OS CLI command in Cisco Nexus 3000 Series and 9000 Series Switches 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. Note: If the device has not been patched for the vulnerability previously disclosed in the Cisco Security Advisory cisco-sa-20190306-nxos-sig-verif, a successful exploit could allow the attacker to boot a malicious software image. Una vulnerabilidad en la función Image Signature Verification utilizada en un comando CLI de NX-OS en los switches de las series Nexus 3000 y 9000 de Cisco podría permitir a un atacante local autenticado con credenciales de administrador para instalar una imagen de programa malicioso en un dispositivo afectado. • http://www.securityfocus.com/bid/108431 https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190515-nxos-sisv • CWE-347: Improper Verification of Cryptographic Signature •
CVSS: 7.2EPSS: 0%CPEs: 211EXPL: 0CVE-2019-1649 – Cisco Secure Boot Hardware Tampering Vulnerability
https://notcve.org/view.php?id=CVE-2019-1649
A vulnerability in the logic that handles access control to one of the hardware components in Cisco's proprietary Secure Boot implementation could allow an authenticated, local attacker to write a modified firmware image to the component. This vulnerability affects multiple Cisco products that support hardware-based Secure Boot functionality. The vulnerability is due to an improper check on the area of code that manages on-premise updates to a Field Programmable Gate Array (FPGA) part of the Secure Boot hardware implementation. An attacker with elevated privileges and access to the underlying operating system that is running on the affected device could exploit this vulnerability by writing a modified firmware image to the FPGA. A successful exploit could either cause the device to become unusable (and require a hardware replacement) or allow tampering with the Secure Boot verification process, which under some circumstances may allow the attacker to install and boot a malicious software image. • http://www.securityfocus.com/bid/108350 https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190513-secureboot https://www.kb.cert.org/vuls/id/400865 https://www.us-cert.gov/ics/advisories/icsa-20-072-03 • CWE-284: Improper Access Control CWE-667: Improper Locking •
CVSS: 4.6EPSS: 0%CPEs: 28EXPL: 0CVE-2019-1589 – Cisco Nexus 9000 Series Fabric Switches Application Centric Infrastructure Mode Unmeasured Boot Vulnerability
https://notcve.org/view.php?id=CVE-2019-1589
A vulnerability in the Trusted Platform Module (TPM) functionality of software for Cisco Nexus 9000 Series Fabric Switches in Application Centric Infrastructure (ACI) mode could allow an unauthenticated, local attacker with physical access to view sensitive information on an affected device. The vulnerability is due to a lack of proper data-protection mechanisms for disk encryption keys that are used within the partitions on an affected device hard drive. An attacker could exploit this vulnerability by obtaining physical access to the affected device to view certain cleartext keys. A successful exploit could allow the attacker to execute a custom boot process or conduct further attacks on an affected device. Una vulnerabilidad en la funcionalidad de Trusted Platform Module (TPM) del software para Nexus 9000 Series Fabric Switches de Cisco en modo Application Centric Infrastructure (ACI), podría permitir que un atacante local no autenticado con acceso físico pueda ver información confidencial en un dispositivo afectado. • http://www.securityfocus.com/bid/108175 https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190501-aci-unmeasured-boot • CWE-200: Exposure of Sensitive Information to an Unauthorized Actor CWE-311: Missing Encryption of Sensitive Data •
CVSS: 8.1EPSS: 0%CPEs: 29EXPL: 0CVE-2019-1590 – Cisco Nexus 9000 Series Fabric Switches Application Centric Infrastructure Mode Insecure Fabric Authentication Vulnerability
https://notcve.org/view.php?id=CVE-2019-1590
A vulnerability in the Transport Layer Security (TLS) certificate validation functionality of Cisco Nexus 9000 Series Application Centric Infrastructure (ACI) Mode Switch Software could allow an unauthenticated, remote attacker to perform insecure TLS client authentication on an affected device. The vulnerability is due to insufficient TLS client certificate validations for certificates sent between the various components of an ACI fabric. An attacker who has possession of a certificate that is trusted by the Cisco Manufacturing CA and the corresponding private key could exploit this vulnerability by presenting a valid certificate while attempting to connect to the targeted device. An exploit could allow the attacker to gain full control of all other components within the ACI fabric of an affected device. Una vulnerabilidad en la funcionalidad de validación de certificados de Transport Layer Security (TLS) del software Nexus 9000 Series Switch de Cisco en modo Application Centric Infrastructure (ACI), podría permitir a un atacante remoto no autenticado realizar una autenticación no segura del cliente TLS en un dispositivo afectado. • https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190501-aci-insecure-fabric • CWE-295: Improper Certificate Validation •
CVSS: 4.3EPSS: 0%CPEs: 28EXPL: 0CVE-2019-1587 – Cisco Nexus 9000 Series Fabric Switches Application Centric Infrastructure Mode Filter Query Information Disclosure Vulnerability
https://notcve.org/view.php?id=CVE-2019-1587
A vulnerability in Cisco Nexus 9000 Series Fabric Switches in Application Centric Infrastructure (ACI) mode could allow an authenticated, remote attacker to access sensitive information. The vulnerability occurs because the affected software does not properly validate user-supplied input. An attacker could exploit this vulnerability by issuing certain commands with filtered query results on the device. This action may cause returned messages to display confidential system information. A successful exploit could allow the attacker to read sensitive information on the device. • https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190501-aci-filter-query • CWE-20: Improper Input Validation CWE-399: Resource Management Errors •