CVSS: 4.3EPSS: 0%CPEs: 35EXPL: 0CVE-2021-1220 – Cisco IOS XE Software Web UI Denial of Service Vulnerabilities
https://notcve.org/view.php?id=CVE-2021-1220
Multiple vulnerabilities in the web UI of Cisco IOS XE Software could allow an authenticated, remote attacker with read-only privileges to cause the web UI software to become unresponsive and consume vty line instances, resulting in a denial of service (DoS) condition. These vulnerabilities are due to insufficient error handling in the web UI. An attacker could exploit these vulnerabilities by sending crafted HTTP packets to an affected device. A successful exploit could allow the attacker to cause the web UI software to become unresponsive and consume all available vty lines, preventing new session establishment and resulting in a DoS condition. Manual intervention would be required to regain web UI and vty session functionality. • https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-xe-webui-dos-z9yqYQAn • CWE-20: Improper Input Validation •
CVSS: 6.9EPSS: 0%CPEs: 59EXPL: 0CVE-2021-1281 – Cisco IOS XE SD-WAN Software Privilege Escalation Vulnerability
https://notcve.org/view.php?id=CVE-2021-1281
A vulnerability in CLI management in Cisco IOS XE SD-WAN Software could allow an authenticated, local attacker to access the underlying operating system as the root user. This vulnerability is due to the way the software handles concurrent CLI sessions. An attacker could exploit this vulnerability by authenticating to the device as an administrative user and executing a sequence of commands. A successful exploit could allow the attacker to obtain access to the underlying operating system as the root user. Una vulnerabilidad en la administración de la CLI en el Software Cisco IOS XE SD-WAN, podría permitir a un atacante local autenticado acceder al sistema operativo subyacente como usuario root. • https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-sdwan-clipriv-9TO2QGVp • CWE-399: Resource Management Errors •
CVSS: 7.4EPSS: 0%CPEs: 89EXPL: 0CVE-2021-1352 – Cisco IOS XE Software DECnet Phase IV/OSI Denial of Service Vulnerability
https://notcve.org/view.php?id=CVE-2021-1352
A vulnerability in the DECnet Phase IV and DECnet/OSI protocol processing of Cisco IOS XE Software could allow an unauthenticated, adjacent attacker to cause a denial of service (DoS) condition on an affected device. The vulnerability is due to insufficient input validation of DECnet traffic that is received by an affected device. An attacker could exploit this vulnerability by sending DECnet traffic to an affected device. A successful exploit could allow the attacker to cause the affected device to reload, resulting in a DoS condition. Una vulnerabilidad en el procesamiento del protocolo DECnet Phase IV y DECnet/OSI del Software Cisco IOS XE, podría permitir a un atacante adyacente no autenticado causar una condición de denegación de servicio (DoS) en un dispositivo afectado. • https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-iosxe-decnet-dos-cuPWDkyL • CWE-119: Improper Restriction of Operations within the Bounds of a Memory Buffer CWE-823: Use of Out-of-range Pointer Offset •
CVSS: 4.3EPSS: 0%CPEs: 13EXPL: 0CVE-2021-1356 – Cisco IOS XE Software Web UI Denial of Service Vulnerabilities
https://notcve.org/view.php?id=CVE-2021-1356
Multiple vulnerabilities in the web UI of Cisco IOS XE Software could allow an authenticated, remote attacker with read-only privileges to cause the web UI software to become unresponsive and consume vty line instances, resulting in a denial of service (DoS) condition. These vulnerabilities are due to insufficient error handling in the web UI. An attacker could exploit these vulnerabilities by sending crafted HTTP packets to an affected device. A successful exploit could allow the attacker to cause the web UI software to become unresponsive and consume all available vty lines, preventing new session establishment and resulting in a DoS condition. Manual intervention would be required to regain web UI and vty session functionality. • https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-xe-webui-dos-z9yqYQAn • CWE-20: Improper Input Validation CWE-755: Improper Handling of Exceptional Conditions •
CVSS: 4.8EPSS: 0%CPEs: 89EXPL: 0CVE-2021-1374 – Cisco IOS XE Wireless Controller Software for the Catalyst 9000 Family Stored Cross-Site Scripting Vulnerability
https://notcve.org/view.php?id=CVE-2021-1374
A vulnerability in the web-based management interface of Cisco IOS XE Wireless Controller software for the Catalyst 9000 Family of switches could allow an authenticated, remote attacker to conduct a cross-site scripting (XSS) attack against another user of the web-based management interface of an affected device. The vulnerability is due to insufficient validation of user-supplied input by the web-based management interface of an affected device. An attacker could exploit this vulnerability by authenticating to the device as a high-privileged user, adding certain configurations with malicious code in one of its fields, and persuading another user to click on it. A successful exploit could allow the attacker to execute arbitrary script code in the context of the affected interface or to access sensitive, browser-based information. Una vulnerabilidad en la interfaz de administración basada en web del software Cisco IOS XE Wireless Controller para la Familia Catalyst 9000, podría permitir a un atacante remoto autenticado llevar a cabo un ataque de tipo cross-site scripting (XSS) contra otro usuario de la interfaz de administración basada en web de un dispositivo afectado. • https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ewlc-xss-cAfMtCzv • CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') •