CVSS: 4.3EPSS: 0%CPEs: 2EXPL: 0CVE-2017-0884
https://notcve.org/view.php?id=CVE-2017-0884
Nextcloud Server before 9.0.55 and 10.0.2 suffers from a creation of folders in read-only folders despite lacking permissions issue. Due to a logical error in the file caching layer an authenticated adversary is able to create empty folders inside a shared folder. Note that this only affects folders and files that the adversary has at least read-only permissions for. Nextcloud Server en versiones anteriores a 9.0.55 y 10.0.2 sufre de una creación de carpetas en carpetas de sólo lectura a pesar del problema de permisos que faltan. Debido a un error lógico en la capa de caché de archivos, un adversario autenticado puede crear carpetas vacías dentro de una carpeta compartida. • https://hackerone.com/reports/169680 https://nextcloud.com/security/advisory/?id=nc-sa-2017-002 • CWE-275: Permission Issues CWE-732: Incorrect Permission Assignment for Critical Resource •
CVSS: 4.3EPSS: 0%CPEs: 2EXPL: 0CVE-2017-0887
https://notcve.org/view.php?id=CVE-2017-0887
Nextcloud Server before 9.0.55 and 10.0.2 suffers from a bypass in the quota limitation. Due to not properly sanitizing values provided by the `OC-Total-Length` HTTP header an authenticated adversary may be able to exceed their configured user quota. Thus using more space than allowed by the administrator. Nextcloud Server en versiones anteriores a 9.0.55 y 10.0.2 Sufre una evasión en la limitación de cuota. Debido a que no se desinfectan correctamente los valores proporcionados por la cabecera "OC-Total-Length" HTTP, un adversario autenticado puede superar su cuota de usuario configurada. • https://hackerone.com/reports/173622 https://nextcloud.com/security/advisory/?id=nc-sa-2017-005 • CWE-20: Improper Input Validation CWE-807: Reliance on Untrusted Inputs in a Security Decision •
CVSS: 6.4EPSS: 0%CPEs: 2EXPL: 0CVE-2017-0883
https://notcve.org/view.php?id=CVE-2017-0883
Nextcloud Server before 9.0.55 and 10.0.2 suffers from a permission increase on re-sharing via OCS API issue. A permission related issue within the OCS sharing API allowed an authenticated adversary to reshare shared files with an increasing permission set. This may allow an attacker to edit files in a share despite having only a 'read' permission set. Note that this only affects folders and files that the adversary has at least read-only permissions for. Nextcloud Server en versiones anteriores a 9.0.55 y 10.0.2 sufre un aumento de permiso al volver a compartir a través del problema de la API de OCS compartiendo API permitió a un adversario autenticado compartir archivos compartidos con un conjunto de permisos creciente. • https://hackerone.com/reports/169680 https://nextcloud.com/security/advisory/?id=nc-sa-2017-001 • CWE-275: Permission Issues CWE-732: Incorrect Permission Assignment for Critical Resource •
CVSS: 4.3EPSS: 0%CPEs: 2EXPL: 0CVE-2017-0885
https://notcve.org/view.php?id=CVE-2017-0885
Nextcloud Server before 9.0.55 and 10.0.2 suffers from a error message disclosing existence of file in write-only share. Due to an error in the application logic an adversary with access to a write-only share may enumerate the names of existing files and subfolders by comparing the exception messages. Nextcloud Server en versiones anteriores a 9.0.55 y 10.0.2 sufre de un mensaje de error que revela la existencia de archivo en el recurso de sólo escritura. Debido a un error en la lógica de la aplicación, un adversario con acceso a un recurso compartido de sólo escritura puede enumerar los nombres de los archivos y subcarpetas existentes comparando los mensajes de excepción. • https://hackerone.com/reports/174524 https://nextcloud.com/security/advisory/?id=nc-sa-2017-003 • CWE-200: Exposure of Sensitive Information to an Unauthorized Actor CWE-209: Generation of Error Message Containing Sensitive Information •
CVSS: 4.3EPSS: 0%CPEs: 2EXPL: 1CVE-2016-9464
https://notcve.org/view.php?id=CVE-2016-9464
Nextcloud Server before 9.0.54 and 10.0.0 suffers from an improper authorization check on removing shares. The Sharing Backend as implemented in Nextcloud does differentiate between shares to users and groups. In case of a received group share, users should be able to unshare the file to themselves but not to the whole group. The previous API implementation simply unshared the file to all users in the group. Nextcloud Server en versiones anteriores a 9.0.54 y 10.0.0 sufre de una verificación de autorización incorrecta de los recursos eliminados. • http://www.securityfocus.com/bid/97287 https://github.com/nextcloud/server/commit/3387e5d00fcf6b2ea6b285a091e5743f545e7202 https://github.com/nextcloud/server/commit/7289cb5ec0b812992ab0dfb889744b94bc0994f0 https://github.com/nextcloud/server/commit/a5471b4a3e3f30e99e4de39c97c0c3b3c2f1618f https://github.com/nextcloud/server/commit/e2c4f4f9aa11bc92e8f2212cce73841b922187e8 https://hackerone.com/reports/153905 https://nextcloud.com/security/advisory/?id=nc-sa-2016-007 • CWE-285: Improper Authorization •