CVSS: 6.5EPSS: 0%CPEs: 2EXPL: 0CVE-2017-0886
https://notcve.org/view.php?id=CVE-2017-0886
Nextcloud Server before 9.0.55 and 10.0.2 suffers from a Denial of Service attack. Due to an error in the application logic an authenticated adversary may trigger an endless recursion in the application leading to a potential Denial of Service. Nextcloud Server en versiones anteriores a 9.0.55 y 10.0.2 sufre de un ataque de denegación de servicio. Debido a un error en la lógica de la aplicación, un adversario autenticado puede desencadenar una recursión interminable en la aplicación que conduce a una posible denegación de servicio. • https://hackerone.com/reports/174524 https://nextcloud.com/security/advisory/?id=nc-sa-2017-004 • CWE-674: Uncontrolled Recursion •
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: 1CVE-2016-9462
https://notcve.org/view.php?id=CVE-2016-9462
Nextcloud Server before 9.0.52 & ownCloud Server before 9.0.4 are not properly verifying restore privileges when restoring a file. The restore capability of Nextcloud/ownCloud was not verifying whether a user has only read-only access to a share. Thus a user with read-only access was able to restore old versions. Nextcloud Server en versiones anteriores a 9.0.52 & ownCloud Server en versiones anteriores a 9.0.4 no están verificando correctamente los privilegios de restauración al restaurar un archivo. La capacidad de restauración de Nextcloud/ownCloud no estaba verificando si un usuario sólo tiene acceso de sólo lectura a un recurso compartido. • http://www.securityfocus.com/bid/97285 https://github.com/nextcloud/server/commit/1208953ba1d4d55a18a639846bbcdd66a2d5bc5e https://github.com/owncloud/core/commit/23383080731d092e079986464a8c4c9ffcb79f4c https://github.com/owncloud/core/commit/3b056fa68ce502ceb0db9b446dab3b9e7b10dd13 https://github.com/owncloud/core/commit/c93eca49c32428ece03dd67042772d5fa62c8d6e https://github.com/owncloud/core/commit/d31720b6f1e8c8dfeb5e8805ab35ad7c8000b2f1 https://hackerone.com/reports/146067 https://nextcloud.com/security/advisory/?id=nc-sa-2016-005 https:// • CWE-275: Permission Issues CWE-284: Improper Access Control •
CVSS: 6.1EPSS: 0%CPEs: 2EXPL: 1CVE-2016-9459
https://notcve.org/view.php?id=CVE-2016-9459
Nextcloud Server before 9.0.52 & ownCloud Server before 9.0.4 are vulnerable to a log pollution vulnerability potentially leading to a local XSS. The download log functionality in the admin screen is delivering the log in JSON format to the end-user. The file was delivered with an attachment disposition forcing the browser to download the document. However, Firefox running on Microsoft Windows would offer the user to open the data in the browser as an HTML document. Thus any injected data in the log would be executed. • http://www.securityfocus.com/bid/97284 https://github.com/nextcloud/server/commit/94975af6db1551c2d23136c2ea22866a5b416070 https://github.com/owncloud/core/commit/044ee072a647636b1a17c89265c7233b35371335 https://github.com/owncloud/core/commit/b7fa2c5dc945b40bc6ed0a9a0e47c282ebf043e1 https://github.com/owncloud/core/commit/efa35d621dc7ff975468e636a5d1c153511296dc https://hackerone.com/reports/146278 https://nextcloud.com/security/advisory/?id=nc-sa-2016-002 https://owncloud.org/security/advisory?id=oc-sa-2016-012 • CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') CWE-209: Generation of Error Message Containing Sensitive Information •
CVSS: 8.1EPSS: 0%CPEs: 5EXPL: 2CVE-2016-9463
https://notcve.org/view.php?id=CVE-2016-9463
Nextcloud Server before 9.0.54 and 10.0.1 & ownCloud Server before 9.1.2, 9.0.6, and 8.2.9 suffer from SMB User Authentication Bypass. Nextcloud/ownCloud include an optional and not by default enabled SMB authentication component that allows authenticating users against an SMB server. This backend is implemented in a way that tries to connect to a SMB server and if that succeeded consider the user logged-in. The backend did not properly take into account SMB servers that have any kind of anonymous auth configured. This is the default on SMB servers nowadays and allows an unauthenticated attacker to gain access to an account without valid credentials. • https://github.com/nextcloud/apps/commit/b85ace6840b8a6704641086bc3b8eb8e81cb2274 https://github.com/nextcloud/apps/commit/decb91fd31f4ffab191cbf09ce4e5c55c67a4087 https://github.com/owncloud/apps/commit/16cbccfc946c8711721fa684d78135ca1fb64791 https://github.com/owncloud/apps/commit/5d47e7b52646cf79edadd78ce10c754290cbb732 https://github.com/owncloud/apps/commit/a0e07b7ddd5a5fd850a6e07f8457d05b76a300b3 https://hackerone.com/reports/148151 https://nextcloud.com/security/advisory/?id=nc-sa-2016-006 https://owncloud.org/security/advisory/?id=oc-sa- • CWE-287: Improper Authentication CWE-303: Incorrect Implementation of Authentication Algorithm •