CVE-2017-6023

Fatek Automation PLC Ethernet Module Configuration Tool Stack-based Buffer Overflow Remote Code Execution Vulnerability

Severity Score

9.8

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

An issue was discovered in Fatek Automation PLC Ethernet Module. The affected Ether_cfg software configuration tool runs on the following Fatek PLCs: CBEH versions prior to V3.6 Build 170215, CBE versions prior to V3.6 Build 170215, CM55E versions prior to V3.6 Build 170215, and CM25E versions prior to V3.6 Build 170215. A stack-based buffer overflow vulnerability has been identified, which may allow remote code execution or crash the affected device.

Se ha descubierto un problema en Fatek Automation PLC Ethernet Module. Las herramientas de configuración del software Ether_cfg afectado en las siguientes versiones de Fatek PLCs: CBEH anteriores a V3.6 Build 170215, CBE versiones anteriores a V3.6 Build 170215, CM55E versiones anteriores a V3.6 Build 170215 y CM25E versiones anteriores a V3.6 Build 170215. Se ha identificado un desbordamiento de búfer basado en pila, lo que podría permitir ejecución remota de código o caída del dispositivo afectado.

This vulnerability allows remote attackers to execute arbitrary code on vulnerable installations of Fatek Automation PLC Ethernet Module Configuration Tool. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file.
The specific flaw exists within ether_cfg.exe. The issue lies in the failure to properly validate the length of user-supplied data prior to copying it to a fixed-length stack-based buffer. An attacker can leverage this vulnerability to execute arbitrary code under the context of the process.

*Credits: Anonymous

CVSS Scores

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

Partial

Integrity

Partial

Availability

Complete

Attack Vector

Network

Attack Complexity

Medium

Authentication

None

Confidentiality

Partial

Integrity

Partial

Availability

Partial

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2017-02-16 CVE Reserved
2017-03-16 CVE Published
2024-08-05 CVE Updated
2024-11-01 EPSS Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-119: Improper Restriction of Operations within the Bounds of a Memory Buffer
CWE-121: Stack-based Buffer Overflow

CAPEC

References (2)

URL	Tag	Source
http://www.securityfocus.com/bid/96892	Third Party Advisory
https://ics-cert.us-cert.gov/advisories/ICSA-17-073-01	Third Party Advisory

URL	Date	SRC

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
Fatek Search vendor "Fatek"	Ethernet Module Configuration Tool Cbe Firmware Search vendor "Fatek" for product "Ethernet Module Configuration Tool Cbe Firmware"	<= 3.5 Search vendor "Fatek" for product "Ethernet Module Configuration Tool Cbe Firmware" and version " <= 3.5"	-	Affected	in	Fatek Search vendor "Fatek"	Plc Ethernet Module Search vendor "Fatek" for product "Plc Ethernet Module"	-	-	Safe
Fatek Search vendor "Fatek"	Ethernet Module Configuration Tool Cbeh Firmware Search vendor "Fatek" for product "Ethernet Module Configuration Tool Cbeh Firmware"	<= 3.5 Search vendor "Fatek" for product "Ethernet Module Configuration Tool Cbeh Firmware" and version " <= 3.5"	-	Affected	in	Fatek Search vendor "Fatek"	Plc Ethernet Module Search vendor "Fatek" for product "Plc Ethernet Module"	-	-	Safe
Fatek Search vendor "Fatek"	Ethernet Module Configuration Tool Cm25e Firmware Search vendor "Fatek" for product "Ethernet Module Configuration Tool Cm25e Firmware"	<= 3.5 Search vendor "Fatek" for product "Ethernet Module Configuration Tool Cm25e Firmware" and version " <= 3.5"	-	Affected	in	Fatek Search vendor "Fatek"	Plc Ethernet Module Search vendor "Fatek" for product "Plc Ethernet Module"	-	-	Safe
Fatek Search vendor "Fatek"	Ethernet Module Configuration Tool Cm55e Firmware Search vendor "Fatek" for product "Ethernet Module Configuration Tool Cm55e Firmware"	<= 3.5 Search vendor "Fatek" for product "Ethernet Module Configuration Tool Cm55e Firmware" and version " <= 3.5"	-	Affected	in	Fatek Search vendor "Fatek"	Plc Ethernet Module Search vendor "Fatek" for product "Plc Ethernet Module"	-	-	Safe