CVE-2022-29854 – Mitel 6800/6900 Series SIP Phones Backdoor Access

https://notcve.org/view.php?id=CVE-2022-29854

A vulnerability in Mitel 6900 Series IP (MiNet) phones excluding 6970, versions 1.8 (1.8.0.12) and earlier, could allow a unauthenticated attacker with physical access to the phone to gain root access due to insufficient access control for test functionality during system startup. A successful exploit could allow access to sensitive information and code execution. Una vulnerabilidad en los teléfonos IP de la serie 6900 de Mitel (MiNet), excepto el 6970, versiones 1.8 (1.8.0.12) y anteriores, podría permitir a un atacante no autenticado con acceso físico al teléfono conseguir acceso de root debido a un control de acceso insuficiente para la funcionalidad test durante el inicio del sistema. Una explotación con éxito podría permitir el acceso a información confidencial y una ejecución de código Mitel 6800/6900 Series SIP Phones excluding 6970 and Mitel 6900 Series IP (MiNet) Phones have a flow to spawn a telnet backdoor on the device with a static root password enabled. Affected versions include Rel 5.1 SP8 (5.1.0.8016) and earlier, Rel 6.0 (6.0.0.368) to 6.1 HF4 (6.1.0.165), and MiNet 1.8.0.12 and earlier. • http://packetstormsecurity.com/files/167547/Mitel-6800-6900-Series-SIP-Phones-Backdoor-Access.html http://seclists.org/fulldisclosure/2022/Jun/32 https://www.mitel.com/support/security-advisories https://www.mitel.com/support/security-advisories/mitel-product-security-advisory-22-0003 https://www.syss.de/pentest-blog/undocumented-functionality-backdoor-in-mitel-desk-phones-syss-2022-021 • CWE-863: Incorrect Authorization •