CVE-2018-3762
https://notcve.org/view.php?id=CVE-2018-3762
Nextcloud Server before 12.0.8 and 13.0.3 suffers from improper checks of dropped permissions for incoming shares allowing a user to still request previews for files it should not have access to. Nextcloud Server en versiones anteriores a la 12.0.8 y la 13.0.3 sufre de comprobaciones incorrectas de permisos abandonados para comparticiones entrantes, lo que permite que un usuario pueda seguir solicitando previsualizaciones de archivos a los que no debería tener acceso. • https://hackerone.com/reports/358339 https://nextcloud.com/security/advisory/?id=nc-sa-2018-002 • CWE-281: Improper Preservation of Permissions CWE-284: Improper Access Control •
CVE-2017-0936
https://notcve.org/view.php?id=CVE-2017-0936
Nextcloud Server before 11.0.7 and 12.0.5 suffers from an Authorization Bypass Through User-Controlled Key vulnerability. A missing ownership check allowed logged-in users to change the scope of app passwords of other users. Note that the app passwords themselves where neither disclosed nor could the error be misused to identify as another user. Nextcloud Server en versiones anteriores a la 11.0.7 y versiones 12.0.5 contiene una vulnerabilidad de omisión de autorización mediante una clave controlada por el usuario. La falta de una verificación de propiedad permitía a los usuarios con sesión iniciada modificar el alcance de las contraseñas de la aplicación de otros usuarios. • https://hackerone.com/reports/297751 https://nextcloud.com/security/advisory/?id=nc-sa-2018-001 • CWE-639: Authorization Bypass Through User-Controlled Key •
CVE-2017-0894
https://notcve.org/view.php?id=CVE-2017-0894
Nextcloud Server before 11.0.3 is vulnerable to disclosure of valid share tokens for public calendars due to a logical error. Thus granting an attacker potentially access to publicly shared calendars without knowing the share token. Nextcloud Server anterior a 11.0.3 es vulnerable a una divulgación de tokens de acciones válidos para los calendarios públicos debido a un error lógico. Por lo tanto, esto permite a un potencial atacante el acceso a calendarios compartidos públicamente sin conocer el token compartido. • https://hackerone.com/reports/218876 https://nextcloud.com/security/advisory/?id=nc-sa-2017-011 • CWE-285: Improper Authorization CWE-863: Incorrect Authorization •
CVE-2017-0892
https://notcve.org/view.php?id=CVE-2017-0892
Nextcloud Server before 11.0.3 is vulnerable to an improper session handling allowed an application specific password without permission to the files access to the users file. Nextcloud Server anterior a 11.0.3 es vulnerable a una manipulación incorrecta de la sesión, lo que permite especificar una contraseña a la aplicación sin permiso de acceso a ficheros o al fichero de usuarios • https://hackerone.com/reports/191979 https://nextcloud.com/security/advisory/?id=nc-sa-2017-009 • CWE-285: Improper Authorization CWE-384: Session Fixation •
CVE-2017-0891 – NextCloud / OwnCloud Cross Site Scripting
https://notcve.org/view.php?id=CVE-2017-0891
Nextcloud Server before 9.0.58 and 10.0.5 and 11.0.3 are vulnerable to an inadequate escaping of error messages leading to XSS vulnerabilities in multiple components. Nextcloud Server anterior a 9.0.58 a 10.0.5 y a 11.0.3 son vulnerables a un escape inadecuado de mensajes de error que conducen a vulnerabilidades XSS en múltiples componentes. NextCloud and OwnCloud suffer from a cross site scripting vulnerability in their error pages. OwnCloud versions 9.1.5 and below are affected. NextCloud versions prior to 11.0.3, 10.0.5, and 9.0.58 are affected. • https://hackerone.com/reports/216812 https://nextcloud.com/security/advisory/?id=nc-sa-2017-008 • CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') •