CVSS: 7.2EPSS: 0%CPEs: 138EXPL: 0CVE-2019-12662 – Cisco NX-OS and IOS XE Software Virtual Service Image Signature Bypass Vulnerability
https://notcve.org/view.php?id=CVE-2019-12662
A vulnerability in Cisco NX-OS Software and Cisco IOS XE Software could allow an authenticated, local attacker with valid administrator or privilege level 15 credentials to load a virtual service image and bypass signature verification on an affected device. The vulnerability is due to improper signature verification during the installation of an Open Virtual Appliance (OVA) image. An authenticated, local attacker could exploit this vulnerability and load a malicious, unsigned OVA image on an affected device. A successful exploit could allow an attacker to perform code execution on a crafted software OVA image. Una vulnerabilidad en el Software Cisco NX-OS y el Software Cisco IOS XE, podría permitir que un atacante local autenticado con credenciales válidas de administrador o nivel de privilegio 15 cargue una imagen de servicio virtual y omita la comprobación de firma en un dispositivo afectado. • https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190925-vman • CWE-347: Improper Verification of Cryptographic Signature •
CVSS: 8.6EPSS: 0%CPEs: 152EXPL: 0CVE-2019-12658 – Cisco IOS XE Software Filesystem Exhaustion Denial of Service Vulnerability
https://notcve.org/view.php?id=CVE-2019-12658
A vulnerability in the filesystem resource management code of Cisco IOS XE Software could allow an unauthenticated, remote attacker to exhaust filesystem resources on an affected device and cause a denial of service (DoS) condition. The vulnerability is due to ineffective management of the underlying filesystem resources. An attacker could exploit this vulnerability by performing specific actions that result in messages being sent to specific operating system log files. A successful exploit could allow the attacker to exhaust available filesystem space on an affected device. This could cause the device to crash and reload, resulting in a DoS condition for clients whose network traffic is transiting the device. • https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190925-iosxe-fsdos • CWE-400: Uncontrolled Resource Consumption •
CVSS: 8.6EPSS: 0%CPEs: 118EXPL: 0CVE-2019-12657 – Cisco IOS XE Software Unified Threat Defense Denial of Service Vulnerability
https://notcve.org/view.php?id=CVE-2019-12657
A vulnerability in Unified Threat Defense (UTD) in Cisco IOS XE Software could allow an unauthenticated, remote attacker to cause an affected device to reload. The vulnerability is due to improper validation of IPv6 packets through the UTD feature. An attacker could exploit this vulnerability by sending IPv6 traffic through an affected device that is configured with UTD. A successful exploit could allow the attacker to cause the device to reload, resulting in a denial of service (DoS) condition. Una vulnerabilidad en Unified Threat Defense (UTD) en el Software Cisco IOS XE, podría permitir a un atacante remoto no autenticado causar que un dispositivo afectado se recargue. • https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190925-utd • CWE-20: Improper Input Validation •
CVSS: 7.2EPSS: 0%CPEs: 87EXPL: 0CVE-2019-12649 – Cisco IOS XE Software Digital Signature Verification Bypass Vulnerability
https://notcve.org/view.php?id=CVE-2019-12649
A vulnerability in the Image Verification feature of Cisco IOS XE Software could allow an authenticated, local attacker to install and boot a malicious software image or execute unsigned binaries on an affected device. The vulnerability exists because, under certain circumstances, an affected device can be configured to not verify the digital signatures of system image files during the boot process. An attacker could exploit this vulnerability by abusing a specific feature that is part of the device boot process. A successful exploit could allow the attacker to install and boot a malicious software image or execute unsigned binaries on the targeted device. Una vulnerabilidad en la funcionalidad de Comprobación de Imagen del Software Cisco IOS XE, podría permitir a un atacante local autenticado instalar y arrancar una imagen de software malicioso o ejecutar archivos binarios sin firmar en un dispositivo afectado. • https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190925-iosxe-digsig-bypass • CWE-347: Improper Verification of Cryptographic Signature •
CVSS: 5.5EPSS: 0%CPEs: 32EXPL: 0CVE-2019-1842 – Cisco IOS XR Software Secure Shell Authentication Vulnerability
https://notcve.org/view.php?id=CVE-2019-1842
A vulnerability in the Secure Shell (SSH) authentication function of Cisco IOS XR Software could allow an authenticated, remote attacker to successfully log in to an affected device using two distinct usernames. The vulnerability is due to a logic error that may occur when certain sequences of actions are processed during an SSH login event on the affected device. An attacker could exploit this vulnerability by initiating an SSH session to the device with a specific sequence that presents the two usernames. A successful exploit could result in logging data misrepresentation, user enumeration, or, in certain circumstances, a command authorization bypass. See the Details section for more information. • http://www.securityfocus.com/bid/108687 https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190605-iosxr-ssh • CWE-285: Improper Authorization CWE-287: Improper Authentication •