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') •
CVE-2017-0890
https://notcve.org/view.php?id=CVE-2017-0890
Nextcloud Server before 11.0.3 is vulnerable to an inadequate escaping leading to a XSS vulnerability in the search module. To be exploitable a user has to write or paste malicious content into the search dialogue. Nextcloud Server anterior a 11.0.3 es vulnerable a un escape inadecuado lo que produce una vulnerabilidad XSS en el módulo de búsqueda. Para ser explotable un usuario tiene que escribir o pegar contenido malicioso en el diálogo de búsqueda. • https://hackerone.com/reports/213227 https://nextcloud.com/security/advisory/?id=nc-sa-2017-007 • CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') •
CVE-2017-0893
https://notcve.org/view.php?id=CVE-2017-0893
Nextcloud Server before 9.0.58 and 10.0.5 and 11.0.3 are shipping a vulnerable JavaScript library for sanitizing untrusted user-input which suffered from a XSS vulnerability caused by a behaviour change in Safari 10.1 and 10.2. Note that Nextcloud employs a strict Content-Security-Policy preventing exploitation of this XSS issue on modern web browsers. Nextcloud Server anterior a 9.0.58, a 10.0.5, y a 11.0.3 utiliza una biblioteca de JavaScript vulnerable para desinfectar la entrada de usuario no confiable que sufrió una vulnerabilidad XSS causada por un cambio de comportamiento en Safari 10.1 y 10.2. Tenga en cuenta que Nextcloud emplea una estricta política de seguridad de contenido que impide la explotación de este problema XSS en los navegadores web modernos. • https://hackerone.com/reports/222838 https://nextcloud.com/security/advisory/?id=nc-sa-2017-010 • CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') •
CVE-2017-0888
https://notcve.org/view.php?id=CVE-2017-0888
Nextcloud Server before 9.0.55 and 10.0.2 suffers from a Content-Spoofing vulnerability in the "files" app. The top navigation bar displayed in the files list contained partially user-controllable input leading to a potential misrepresentation of information. Nextcloud Server en versiones anteriores a 9.0.55 y 10.0.2 sufre una vulnerabilidad de Content-Spoofing en la aplicación "files". La barra de navegación superior mostrada en la lista de archivos contenía entradas parcialmente controlables por el usuario que conducían a una posible representación errónea de la información. • http://www.securityfocus.com/bid/97491 https://hackerone.com/reports/179073 https://nextcloud.com/security/advisory/?id=nc-sa-2017-006 • CWE-20: Improper Input Validation CWE-451: User Interface (UI) Misrepresentation of Critical Information •
CVE-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 •