CVE-2022-29855 – Mitel 6800/6900 Series SIP Phones Backdoor Access

https://notcve.org/view.php?id=CVE-2022-29855

Mitel 6800 and 6900 Series SIP phone devices through 2022-04-27 have "undocumented functionality." A vulnerability in Mitel 6800 Series and 6900 Series SIP phones excluding 6970, versions 5.1 SP8 (5.1.0.8016) and earlier, and 6.0 (6.0.0.368) through 6.1 HF4 (6.1.0.165), 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. Los dispositivos telefónicos SIP de las series 6800 y 6900 de Mitel versiones hasta 27-04-2022, presentan una "funcionalidad no documentada". Una vulnerabilidad en los teléfonos SIP de las series 6800 y 6900 de Mitel, excepto el 6970, versiones 5.1 SP8 (5.1.0.8016) y anteriores, y 6.0 (6.0.0.368) hasta 6.1 HF4 (6.1.0.165), podría permitir a un atacante no autenticado con acceso físico al teléfono conseguir acceso root debido a un control de acceso insuficiente para la funcionalidad test durante el inicio del sistema. • 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-22-0004 https://www.syss.de/pentest-blog/undocumented-functionality-backdoor-in-mitel-desk-phones-syss-2022-021 •