CVE-2018-14558

Tenda AC7, AC9, and AC10 Routers Command Injection Vulnerability

Severity Score

9.8

*CVSS v3

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

Yes

*KEV

Decision

*SSVC

Descriptions

An issue was discovered on Tenda AC7 devices with firmware through V15.03.06.44_CN(AC7), AC9 devices with firmware through V15.03.05.19(6318)_CN(AC9), and AC10 devices with firmware through V15.03.06.23_CN(AC10). A command Injection vulnerability allows attackers to execute arbitrary OS commands via a crafted goform/setUsbUnload request. This occurs because the "formsetUsbUnload" function executes a dosystemCmd function with untrusted input.

Se ha descubierto un problema en dispositivos Tenda AC7 con firmware hasta la versión V15.03.06.44_CN(AC7), dispositivos AC9 devices con firmware hasta la versión V15.03.05.19(6318)_CN(AC9) y dispositivos AC10 con firmware hasta la versión V15.03.06.23_CN(AC10). Una vulnerabilidad de inyección de comandos permite que los atacantes ejecuten comandos arbitrarios del sistema operativo mediante una petición goform/setUsbUnload. Esto ocurre debido a que la función "formsetUsbUnload" ejecuta una función dosystemCmd con entradas no fiables.

Tenda AC7, AC9, and AC10 devices contain a command injection vulnerability due to the "formsetUsbUnload" function executes a dosystemCmd function with untrusted input. Successful exploitation allows an attacker to execute OS commands via a crafted goform/setUsbUnload request.

*Credits: N/A

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Attack Vector

Network

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

2018-07-23 CVE Reserved
2018-10-30 CVE Published
2021-11-03 Exploited in Wild
2022-05-03 KEV Due Date
2023-03-07 EPSS Updated
2024-08-05 CVE Updated
2024-08-05 First Exploit

CWE

CWE-78: Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')

CAPEC

References (1)

URL	Tag	Source

URL	Date	SRC
https://github.com/zsjevilhex/iot/blob/master/route/tenda/tenda-01/Tenda.md	2024-08-05

URL	Date	SRC

URL	Date	SRC

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Tenda Search vendor "Tenda"	Ac7 Firmware Search vendor "Tenda" for product "Ac7 Firmware"	<= 15.03.06.44_cn Search vendor "Tenda" for product "Ac7 Firmware" and version " <= 15.03.06.44_cn"	-	Affected	in	Tenda Search vendor "Tenda"	Ac7 Search vendor "Tenda" for product "Ac7"	-	-	Safe
Tenda Search vendor "Tenda"	Ac9 Firmware Search vendor "Tenda" for product "Ac9 Firmware"	<= 15.03.05.19\(6318\)_cn Search vendor "Tenda" for product "Ac9 Firmware" and version " <= 15.03.05.19\(6318\)_cn"	-	Affected	in	Tenda Search vendor "Tenda"	Ac9 Search vendor "Tenda" for product "Ac9"	-	-	Safe
Tenda Search vendor "Tenda"	Ac10 Firmware Search vendor "Tenda" for product "Ac10 Firmware"	<= 15.03.06.23_cn Search vendor "Tenda" for product "Ac10 Firmware" and version " <= 15.03.06.23_cn"	-	Affected	in	Tenda Search vendor "Tenda"	Ac10 Search vendor "Tenda" for product "Ac10"	-	-	Safe