CVSS: 6.0EPSS: 0%CPEs: 128EXPL: 0CVE-2020-3503 – Cisco IOS XE Software Guest Shell Unauthorized File System Access Vulnerability
https://notcve.org/view.php?id=CVE-2020-3503
A vulnerability in the file system permissions of Cisco IOS XE Software could allow an authenticated, local attacker to obtain read and write access to critical configuration or system files. The vulnerability is due to insufficient file system permissions on an affected device. An attacker could exploit this vulnerability by connecting to an affected device's guest shell, and accessing or modifying restricted files. A successful exploit could allow the attacker to view or modify restricted information or configurations that are normally not accessible to system administrators. Una vulnerabilidad en los permisos del sistema de archivos de Cisco IOS XE Software, podría permitir a un atacante local autenticado conseguir acceso de lectura y escritura a la configuración crítica o archivos del sistema. • https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-unauth-file-access-eBTWkKVW • CWE-284: Improper Access Control CWE-732: Incorrect Permission Assignment for Critical Resource •
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: 19EXPL: 0CVE-2019-12654 – Cisco IOS and IOS XE Software Session Initiation Protocol Denial of Service Vulnerability
https://notcve.org/view.php?id=CVE-2019-12654
A vulnerability in the common Session Initiation Protocol (SIP) library of Cisco IOS and 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 an internal data structure. An attacker could exploit this vulnerability by sending a sequence of malicious SIP messages to an affected device. An exploit could allow the attacker to cause a NULL pointer dereference, resulting in a crash of the iosd process. This triggers a reload of the device. • https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190925-sip-dos • CWE-476: NULL Pointer Dereference •
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: 8.6EPSS: 0%CPEs: 29EXPL: 0CVE-2019-12647 – Cisco IOS and IOS XE Software IP Ident Denial of Service Vulnerability
https://notcve.org/view.php?id=CVE-2019-12647
A vulnerability in the Ident protocol handler of Cisco IOS and IOS XE Software could allow an unauthenticated, remote attacker to cause an affected device to reload. The vulnerability exists because the affected software incorrectly handles memory structures, leading to a NULL pointer dereference. An attacker could exploit this vulnerability by opening a TCP connection to specific ports and sending traffic over that connection. A successful exploit could allow the attacker to cause the affected device to reload, resulting in a denial of service (DoS) condition. Una vulnerabilidad en el manejador del protocolo Ident de los Software Cisco IOS y IOS XE, podría permitir a un atacante remoto no autenticado causar la recarga de un dispositivo afectado. • https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190925-identd-dos • CWE-476: NULL Pointer Dereference •