CVE-2019-13209
https://notcve.org/view.php?id=CVE-2019-13209
Rancher 2 through 2.2.4 is vulnerable to a Cross-Site Websocket Hijacking attack that allows an exploiter to gain access to clusters managed by Rancher. The attack requires a victim to be logged into a Rancher server, and then to access a third-party site hosted by the exploiter. Once that is accomplished, the exploiter is able to execute commands against the cluster's Kubernetes API with the permissions and identity of the victim. Rancher versiones 2 hasta 2.2.4, es vulnerable a un ataque de tipo Cross-Site Websocket Hijacking, que permite a un explotador conseguir acceso a los clústeres administrados por Rancher. El ataque requiere que una víctima este registrada dentro de un servidor de Rancher y luego acceda a un sitio de terceros alojado por el explotador. • https://forums.rancher.com/c/announcements https://forums.rancher.com/t/rancher-release-v2-2-5-addresses-rancher-cve-2019-13209/14801 • CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') •
CVE-2019-11202
https://notcve.org/view.php?id=CVE-2019-11202
An issue was discovered that affects the following versions of Rancher: v2.0.0 through v2.0.13, v2.1.0 through v2.1.8, and v2.2.0 through 2.2.1. When Rancher starts for the first time, it creates a default admin user with a well-known password. After initial setup, the Rancher administrator may choose to delete this default admin user. If Rancher is restarted, the default admin user will be recreated with the well-known default password. An attacker could exploit this by logging in with the default admin credentials. • https://forums.rancher.com/c/announcements https://rancher.com/docs/rancher/v2.x/en/security • CWE-287: Improper Authentication •
CVE-2019-11881
https://notcve.org/view.php?id=CVE-2019-11881
A vulnerability exists in Rancher 2.1.4 in the login component, where the errorMsg parameter can be tampered to display arbitrary content, filtering tags but not special characters or symbols. There's no other limitation of the message, allowing malicious users to lure legitimate users to visit phishing sites with scare tactics, e.g., displaying a "This version of Rancher is outdated, please visit https://malicious.rancher.site/upgrading" message. Existe una vulnerabilidad Rancher 2.1.4 en el componente de inicio de sesión, donde el parámetro errorMsg puede ser manipularse para mostrar contenido arbitrario, filtrando etiquetas pero caracteres especiales o símbolos. No hay otra limitación del mensaje, permitiendo a usuarios maliciosos atraer a usuarios para visitar con tácticas de miedo. por ejemplo, mostrando un mensaje "Esta versión de Rancher está desactualizada, visite https://malicious.rancher.site/upgrading" . • https://github.com/MauroEldritch/VanCleef https://github.com/rancher/rancher/issues/20216 •
CVE-2019-12274
https://notcve.org/view.php?id=CVE-2019-12274
In Rancher 1 and 2 through 2.2.3, unprivileged users (if allowed to deploy nodes) can gain admin access to the Rancher management plane because node driver options intentionally allow posting certain data to the cloud. The problem is that a user could choose to post a sensitive file such as /root/.kube/config or /var/lib/rancher/management-state/cred/kubeconfig-system.yaml. En Rancher versión 1 y versión 2 hasta 2.2.3, usuarios sin privilegios (si se les permite desplegar nodos) pueden obtener acceso de administrador al plano de administración Rancher ya que las opciones de controladores de nodo permiten intencionalmente publicar ciertos datos en la nube. El problema es que un usuario puede elegir publicar un archivo confidencial como /root/.kube/config o /var/lib/rancher/management-state/cred/kubeconfig-system.yaml • https://forums.rancher.com/c/announcements https://forums.rancher.com/t/rancher-release-v2-2-4-addresses-rancher-cve-2019-12274-and-cve-2019-12303/14466 • CWE-668: Exposure of Resource to Wrong Sphere CWE-862: Missing Authorization •
CVE-2019-12303
https://notcve.org/view.php?id=CVE-2019-12303
In Rancher 2 through 2.2.3, Project owners can inject additional fluentd configuration to read files or execute arbitrary commands inside the fluentd container. En Rancher versión 2 hasta 2.2.3, los propietarios del proyecto pueden inyectar una configuración fluentd adicional para leer archivos o ejecutar comandos arbitrarios dentro del contenedor fluentd. • https://forums.rancher.com/c/announcements https://forums.rancher.com/t/rancher-release-v2-2-4-addresses-rancher-cve-2019-12274-and-cve-2019-12303/14466 • CWE-74: Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection') •