CVSS: 9.8EPSS: 0%CPEs: 74EXPL: 0CVE-2021-35029
https://notcve.org/view.php?id=CVE-2021-35029
An authentication bypasss vulnerability in the web-based management interface of Zyxel USG/Zywall series firmware versions 4.35 through 4.64 and USG Flex, ATP, and VPN series firmware versions 4.35 through 5.01, which could allow a remote attacker to execute arbitrary commands on an affected device. Una vulnerabilidad de omisión de la autenticación en la interfaz de administración basada en web de Zyxel USG/Zywall series versiones de firmware 4.35 hasta 4.64 y USG Flex, ATP, y VPN versiones de firmware 4.35 hasta 5.01, que podría permitir a un atacante remoto ejecutar comandos arbitrarios en un dispositivo afectado • https://www.zyxel.com/support/Zyxel_security_advisory_for_attacks_against_security_appliances.shtml • CWE-287: Improper Authentication •
CVSS: 9.8EPSS: 0%CPEs: 228EXPL: 0CVE-2020-25014
https://notcve.org/view.php?id=CVE-2020-25014
A stack-based buffer overflow in fbwifi_continue.cgi on Zyxel UTM and VPN series of gateways running firmware version V4.30 through to V4.55 allows remote unauthenticated attackers to execute arbitrary code via a crafted http packet. Un desbordamiento de búfer en la región stack de la memoria en el archivo fbwifi_continue.cgi en Zyxel serie UTM y VPN de puertas de enlace que ejecutan la versión de firmware V4.30 hasta la V4.55, lo que permite a atacantes remotos no autenticados ejecutar código arbitrario por medio de un paquete http diseñado • https://businessforum.zyxel.com/categories/security-news-and-release https://www.zyxel.com/support/Zyxel-security-advisory-for-buffer-overflow-vulnerability.shtml • CWE-787: Out-of-bounds Write •
CVSS: 10.0EPSS: 97%CPEs: 54EXPL: 2CVE-2020-9054 – Zyxel Multiple NAS Devices OS Command Injection Vulnerability
https://notcve.org/view.php?id=CVE-2020-9054
Multiple ZyXEL network-attached storage (NAS) devices running firmware version 5.21 contain a pre-authentication command injection vulnerability, which may allow a remote, unauthenticated attacker to execute arbitrary code on a vulnerable device. ZyXEL NAS devices achieve authentication by using the weblogin.cgi CGI executable. This program fails to properly sanitize the username parameter that is passed to it. If the username parameter contains certain characters, it can allow command injection with the privileges of the web server that runs on the ZyXEL device. Although the web server does not run as the root user, ZyXEL devices include a setuid utility that can be leveraged to run any command with root privileges. • https://github.com/darrenmartyn/CVE-2020-9054 https://cwe.mitre.org/data/definitions/78.html https://kb.cert.org/artifacts/cve-2020-9054.html https://kb.cert.org/vuls/id/498544 https://krebsonsecurity.com/2020/02/zyxel-fixes-0day-in-network-storage-devices https://www.zyxel.com/support/remote-code-execution-vulnerability-of-NAS-products.shtml • CWE-78: Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection') •
CVSS: 9.1EPSS: 0%CPEs: 28EXPL: 1CVE-2019-12583
https://notcve.org/view.php?id=CVE-2019-12583
Missing Access Control in the "Free Time" component of several Zyxel UAG, USG, and ZyWall devices allows a remote attacker to generate guest accounts by directly accessing the account generator. This can lead to unauthorised network access or Denial of Service. El control de acceso que falta en el componente "Tiempo libre" de varios dispositivos Zyxel UAG, USG y ZyWall permite que un atacante remoto genere cuentas de invitado al acceder directamente al generador de cuentas. Esto puede llevar a un acceso no autorizado a la red o a una denegación de servicio. • https://n-thumann.de/blog/zyxel-gateways-missing-access-control-in-account-generator-xss https://www.zyxel.com/support/vulnerabilities-related-to-the-Free-Time-feature.shtml • CWE-425: Direct Request ('Forced Browsing') •
CVSS: 6.1EPSS: 3%CPEs: 42EXPL: 2CVE-2019-9955 – Zyxel ZyWall 310 / ZyWall 110 / USG1900 / ATP500 / USG40 - Login Page Cross-Site Scripting
https://notcve.org/view.php?id=CVE-2019-9955
On Zyxel ATP200, ATP500, ATP800, USG20-VPN, USG20W-VPN, USG40, USG40W, USG60, USG60W, USG110, USG210, USG310, USG1100, USG1900, USG2200-VPN, ZyWALL 110, ZyWALL 310, ZyWALL 1100 devices, the security firewall login page is vulnerable to Reflected XSS via the unsanitized 'mp_idx' parameter. En dispositivos Zyxel ATP200, ATP500, ATP800, USG20-VPN, USG20W-VPN, USG40, USG40W, USG60, USG60W, USG110, USG210, USG310, USG1100, USG1900, USG2200-VPN, ZyWALL 110, ZyWALL 310, ZyWALL 1100. La página de inicio de sesión del servidor de seguridad es vulnerable a Reflected XSS por medio del parámetro 'mp_idx' no saneado. ZyWall 310, ZyWall 110, USG1900, ATP500, and USG40 devices suffer from a cross site scripting vulnerability. • https://www.exploit-db.com/exploits/46706 http://packetstormsecurity.com/files/152525/Zyxel-ZyWall-Cross-Site-Scripting.html http://seclists.org/fulldisclosure/2019/Apr/22 https://www.securitymetrics.com/blog/Zyxel-Devices-Vulnerable-Cross-Site-Scripting-Login-page https://www.zyxel.com/support/reflected-cross-site-scripting-vulnerability-of-firewalls.shtml • CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') •