CVE-2022-29854

Mitel 6800/6900 Series SIP Phones Backdoor Access

Severity Score

6.8

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

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.

*Credits: N/A

Attack Vector

Physical

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Attack Vector

Local

Attack Complexity

Low

Authentication

None

Confidentiality

Complete

Integrity

Complete

Availability

Complete

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2022-04-27 CVE Reserved
2022-05-13 CVE Published
2024-03-01 EPSS Updated
2024-08-03 CVE Updated
2024-08-03 First Exploit
---------- Exploited in Wild
---------- KEV Due Date

CWE

CWE-863: Incorrect Authorization

CAPEC

References (5)

URL	Tag	Source
https://www.syss.de/pentest-blog/undocumented-functionality-backdoor-in-mitel-desk-phones-syss-2022-021	Third Party Advisory

URL	Date	SRC
http://packetstormsecurity.com/files/167547/Mitel-6800-6900-Series-SIP-Phones-Backdoor-Access.html	2024-08-03
http://seclists.org/fulldisclosure/2022/Jun/32	2024-08-03

URL	Date	SRC

URL	Date	SRC
https://www.mitel.com/support/security-advisories	2022-10-29
https://www.mitel.com/support/security-advisories/mitel-product-security-advisory-22-0003	2022-10-29

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Mitel Search vendor "Mitel"	Minet Firmware Search vendor "Mitel" for product "Minet Firmware"	<= 1.8.0.12 Search vendor "Mitel" for product "Minet Firmware" and version " <= 1.8.0.12"	-	Affected	in	Mitel Search vendor "Mitel"	6905 Search vendor "Mitel" for product "6905"	-	-	Safe
Mitel Search vendor "Mitel"	Minet Firmware Search vendor "Mitel" for product "Minet Firmware"	<= 1.8.0.12 Search vendor "Mitel" for product "Minet Firmware" and version " <= 1.8.0.12"	-	Affected	in	Mitel Search vendor "Mitel"	6910 Search vendor "Mitel" for product "6910"	-	-	Safe
Mitel Search vendor "Mitel"	Minet Firmware Search vendor "Mitel" for product "Minet Firmware"	<= 1.8.0.12 Search vendor "Mitel" for product "Minet Firmware" and version " <= 1.8.0.12"	-	Affected	in	Mitel Search vendor "Mitel"	6920 Search vendor "Mitel" for product "6920"	-	-	Safe
Mitel Search vendor "Mitel"	Minet Firmware Search vendor "Mitel" for product "Minet Firmware"	<= 1.8.0.12 Search vendor "Mitel" for product "Minet Firmware" and version " <= 1.8.0.12"	-	Affected	in	Mitel Search vendor "Mitel"	6930 Search vendor "Mitel" for product "6930"	-	-	Safe
Mitel Search vendor "Mitel"	Minet Firmware Search vendor "Mitel" for product "Minet Firmware"	<= 1.8.0.12 Search vendor "Mitel" for product "Minet Firmware" and version " <= 1.8.0.12"	-	Affected	in	Mitel Search vendor "Mitel"	6930 Sip Search vendor "Mitel" for product "6930 Sip"	-	-	Safe
Mitel Search vendor "Mitel"	Minet Firmware Search vendor "Mitel" for product "Minet Firmware"	<= 1.8.0.12 Search vendor "Mitel" for product "Minet Firmware" and version " <= 1.8.0.12"	-	Affected	in	Mitel Search vendor "Mitel"	6940 Search vendor "Mitel" for product "6940"	-	-	Safe
Mitel Search vendor "Mitel"	Minet Firmware Search vendor "Mitel" for product "Minet Firmware"	<= 1.8.0.12 Search vendor "Mitel" for product "Minet Firmware" and version " <= 1.8.0.12"	-	Affected	in	Mitel Search vendor "Mitel"	6940 Sip Search vendor "Mitel" for product "6940 Sip"	-	-	Safe