CVE-2016-9111 – Citrix Receiver/Receiver Desktop Lock 4.5 - Authentication Bypass

https://notcve.org/view.php?id=CVE-2016-9111

Incorrect access control mechanisms in Citrix Receiver Desktop Lock 4.5 allow an attacker to bypass the authentication requirement by leveraging physical access to a VDI for temporary disconnection of a LAN cable. NOTE: as of 20161208, the vendor could not reproduce the issue, stating "the researcher was unable to provide us with information that would allow us to confirm the behaviour and, despite extensive investigation on test deployments of supported products, we were unable to reproduce the behaviour as he described. The researcher has also, despite additional requests for information, ceased to respond to us." Acceso incorrecto a los mecanismos de control en Citrix Receiver Desktop Lock 4.5 permiten a un atacante eludir el requerimiento de autenticación aprovechando acceso físico a un VDI para una desconexión temporal de un cable LAN. NOTA: a partir del 08/12/2016, el fabricante no puede reproducir el problema, afirmando "el investigador no ha sido capaz de darnos información que nos permita confirmar el comportamiento y, a pesar de una extensa investigación en implementaciones de prueba de productos compatibles, no hemos sido capaces de reproducir el comportamiento como fue descrito. • https://www.exploit-db.com/exploits/40686 http://www.securityfocus.com/bid/94229 http://www.securitytracker.com/id/1037176 https://packetstormsecurity.com/files/139493/Citrix-Receiver-Receiver-Desktop-Lock-4.5-Authentication-Bypass.html https://vuldb.com/?id.93250 • CWE-254: 7PK - Security Features CWE-284: Improper Access Control •