CVE-2020-8858

Moxa MGate 5105-MB-EIP DestIP Command Injection Remote Code Execution Vulnerability

Severity Score

8.8

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

This vulnerability allows remote attackers to execute arbitrary code on affected installations of Moxa MGate 5105-MB-EIP firmware version 4.1. Authentication is required to exploit this vulnerability. The specific flaw exists within the DestIP parameter within MainPing.asp. The issue results from the lack of proper validation of a user-supplied string before using it to execute a system call. An attacker can leverage this vulnerability to execute code in the context of root. Was ZDI-CAN-9552.

Esta vulnerabilidad permite a atacantes remotos ejecutar código arbitrario en las instalaciones afectadas de Moxa MGate 5105-MB-EIP versión de firmware 4.1. Es requerida una autenticación para explotar esta vulnerabilidad. El fallo específico se presenta dentro del parámetro DestIP dentro del archivo MainPing.asp. El problema resulta de una falta de comprobación apropiada de una cadena suministrada por parte del usuario antes de usarla para ejecutar una llamada al sistema. Un atacante puede aprovechar esta vulnerabilidad para ejecutar código en el contexto de root. Fue ZDI-CAN-9552.

This vulnerability allows remote attackers to execute arbitrary code on affected installations of Moxa MGate 5105-MB-EIP. Authentication is required to exploit this vulnerability.
The specific flaw exists within the DestIP parameter within MainPing.asp. The issue results from the lack of proper validation of a user-supplied string before using it to execute a system call. An attacker can leverage this vulnerability to execute code in the context of root.

*Credits: Dove Chiu, Philippe Lin, Charles Perine, Marco Balduzzi, Ryan Flores, Rainer Vosseler

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Attack Vector

Network

Attack Complexity

Low

Authentication

Single

Confidentiality

Complete

Integrity

Complete

Availability

Complete

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2020-02-11 CVE Reserved
2020-02-11 CVE Published
2024-08-04 CVE Updated
2024-10-10 EPSS Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

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

CAPEC

References (2)

URL	Tag	Source
https://www.zerodayinitiative.com/advisories/ZDI-20-214	Third Party Advisory

URL	Date	SRC

URL	Date	SRC

URL	Date	SRC
https://www.moxa.com/en/support/support/security-advisory/mgate-5105-mb-eip-series-protocol-gateways-vulnerability	2020-02-19

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Moxa Search vendor "Moxa"	Mgate 5105-mb-eip Firmware Search vendor "Moxa" for product "Mgate 5105-mb-eip Firmware"	<= 4.1 Search vendor "Moxa" for product "Mgate 5105-mb-eip Firmware" and version " <= 4.1"	-	Affected	in	Moxa Search vendor "Moxa"	Mgate 5105-mb-eip Search vendor "Moxa" for product "Mgate 5105-mb-eip"	-	-	Safe
Moxa Search vendor "Moxa"	Mgate 5105-mb-eip-t Firmware Search vendor "Moxa" for product "Mgate 5105-mb-eip-t Firmware"	<= 4.1 Search vendor "Moxa" for product "Mgate 5105-mb-eip-t Firmware" and version " <= 4.1"	-	Affected	in	Moxa Search vendor "Moxa"	Mgate 5105-mb-eip-t Search vendor "Moxa" for product "Mgate 5105-mb-eip-t"	-	-	Safe