CVSS: 8.6EPSS: 0%CPEs: 28EXPL: 0CVE-2022-20678 – Cisco IOS XE Software AppNav-XE Denial of Service Vulnerability
https://notcve.org/view.php?id=CVE-2022-20678
A vulnerability in the AppNav-XE feature of Cisco IOS XE Software could allow an unauthenticated, remote attacker to cause an affected device to reload, resulting in a denial of service (DoS) condition. This vulnerability is due to the incorrect handling of certain TCP segments. An attacker could exploit this vulnerability by sending a stream of crafted TCP traffic at a high rate through an interface of an affected device. That interface would need to have AppNav interception enabled. A successful exploit could allow the attacker to cause the device to reload. • https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-appnav-xe-dos-j5MXTR4 • CWE-413: Improper Resource Locking CWE-755: Improper Handling of Exceptional Conditions •
CVSS: 7.7EPSS: 0%CPEs: 109EXPL: 0CVE-2022-20679 – Cisco IOS XE Software IPSec Denial of Service Vulnerability
https://notcve.org/view.php?id=CVE-2022-20679
A vulnerability in the IPSec decryption routine of Cisco IOS XE Software could allow an unauthenticated, remote attacker to cause an affected device to reload, resulting in a denial of service (DoS) condition. This vulnerability is due to buffer exhaustion that occurs while traffic on a configured IPsec tunnel is being processed. An attacker could exploit this vulnerability by sending traffic to an affected device that has a maximum transmission unit (MTU) of 1800 bytes or greater. A successful exploit could allow the attacker to cause the device to reload. To exploit this vulnerability, the attacker may need access to the trusted network where the affected device is in order to send specific packets to be processed by the device. • https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-qfp-ipsec-GQmqvtqV • CWE-20: Improper Input Validation •
CVSS: 7.8EPSS: 0%CPEs: 67EXPL: 0CVE-2022-20681 – Cisco IOS XE Software for Cisco Catalyst 9000 Family Switches and Catalyst 9000 Family Wireless Controllers Privilege Escalation Vulnerability
https://notcve.org/view.php?id=CVE-2022-20681
A vulnerability in the CLI of Cisco IOS XE Software for Cisco Catalyst 9000 Family Switches and Cisco Catalyst 9000 Family Wireless Controllers could allow an authenticated, local attacker to elevate privileges to level 15 on an affected device. This vulnerability is due to insufficient validation of user privileges after the user executes certain CLI commands. An attacker could exploit this vulnerability by logging in to an affected device as a low-privileged user and then executing certain CLI commands. A successful exploit could allow the attacker to execute arbitrary commands with level 15 privileges on the affected device. Una vulnerabilidad en la CLI del software Cisco IOS XE para Cisco Catalyst 9000 Family Switches and Cisco Catalyst 9000 Family Wireless Controllers podría permitir a un atacante local autenticado elevar los privilegios al nivel 15 en un dispositivo afectado. • https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ewlc-priv-esc-ybvHKO5 • CWE-266: Incorrect Privilege Assignment •
CVSS: 8.6EPSS: 0%CPEs: 62EXPL: 0CVE-2022-20682 – Cisco IOS XE Wireless Controller Software for the Catalyst 9000 Family CAPWAP Denial of Service Vulnerability
https://notcve.org/view.php?id=CVE-2022-20682
A vulnerability in the Control and Provisioning of Wireless Access Points (CAPWAP) protocol processing of Cisco IOS XE Wireless Controller Software for the Catalyst 9000 Family could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on an affected device. This vulnerability is due to inadequate input validation of incoming CAPWAP packets encapsulating multicast DNS (mDNS) queries. An attacker could exploit this vulnerability by connecting to a wireless network and sending a crafted mDNS query, which would flow through and be processed by the wireless controller. A successful exploit could allow the attacker to cause the affected device to crash and reload, resulting in a DoS condition. Una vulnerabilidad en el procesamiento del protocolo de control y aprovisionamiento de puntos de acceso inalámbricos (CAPWAP) de Cisco IOS XE Wireless Controller Software for the Catalyst 9000 Family podría permitir a un atacante remoto no autenticado causar una condición de denegación de servicio (DoS) en un dispositivo afectado. • https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-c9800-capwap-mdns-6PSn7gKU • CWE-476: NULL Pointer Dereference CWE-690: Unchecked Return Value to NULL Pointer Dereference •
CVSS: 8.6EPSS: 0%CPEs: 101EXPL: 0CVE-2022-20683 – Cisco IOS XE Software for Catalyst 9800 Series Wireless Controllers Application Visibility and Control Denial of Service Vulnerability
https://notcve.org/view.php?id=CVE-2022-20683
A vulnerability in the Application Visibility and Control (AVC-FNF) feature of Cisco IOS XE Software for Cisco Catalyst 9800 Series Wireless Controllers could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on an affected device. This vulnerability is due to insufficient packet verification for traffic inspected by the AVC feature. An attacker could exploit this vulnerability by sending crafted packets from the wired network to a wireless client, resulting in the crafted packets being processed by the wireless controller. A successful exploit could allow the attacker to cause a crash and reload of the affected device, resulting in a DoS condition. Una vulnerabilidad en la funcionalidad de visibilidad y control de aplicaciones (AVC-FNF) de Cisco IOS XE Software for Cisco Catalyst 9800 Series Wireless Controllers podría permitir a un atacante remoto no autenticado causar una condición de denegación de servicio (DoS) en un dispositivo afectado. • https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-c9800-fnf-dos-bOL5vLge • CWE-124: Buffer Underwrite ('Buffer Underflow') CWE-787: Out-of-bounds Write •