En mars 2018, Sysdream a découvert plusieurs vulnérabilités sur le téléphone IP AudioCodes 420HD (version du logiciel embarqué : 2.2.12.126).
Ces vulnérabilités ont été publiées et chacune d'entre elles est associée à un identifiant CVE :
Dans cet article, nous allons nous concentrer sur la vulnérabilité d'injection de commandes.
In March 2018, Sysdream have discovered several vulnerabilities in the 420HD IP phone (firmware version: 2.2.12.126). This article describes the exploitation steps.
The AudioCodes 400HD series of IP phones is a range of easy-to-use, feature-rich desktop devices for the service provider hosted services, enterprise IP telephony and contact center markets.
Most of user inputs in the CGI interface are not protected against XSS injections.
These vulnerabilities have only been tested on the 420HD phone.
The AudioCodes 400HD series of IP phones consists in a range of easy-to-use, feature-rich desktop devices for the service provider hosted services, enterprise IP telephony and contact center markets.
The CGI scripts used on the 420HD phone (web interface) do not filter user inputs correctly. Consequently, an authenticated attacker could inject arbitrary commands (Remote Code Execution) and takes full control over the device. For example, it is possible to intercept live communications.
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