CVE-2016-8377

Fatek Automation PLC WinProladder Stack-based Buffer Overflow Remote Code Execution Vulnerability

Severity Score

8.0

*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 WinProladder Version 3.11 Build 14701. A stack-based buffer overflow vulnerability exists when the software application connects to a malicious server, resulting in a stack buffer overflow. This causes an exploitable Structured Exception Handler (SEH) overwrite condition that may allow remote code execution.

Ha sido descubierto un problema en Fatek Automation PLC WinProladder Version 3.11 Build 14701. Una vulnerabilidad de desbordamiento de búfer basado en pila existe cuando la aplicación de software se conecta a un servidor malicioso, resultando en un desbordamiento de búfer en pila. Esto provoca una condición de sobreescritura Structured Exception Handler (SEH) explotable que puede permitir la ejecución de código remoto.

This vulnerability allows remote attackers to execute arbitrary code on vulnerable installations of Fatek Automation PLC WinProladder. 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 the parsing of PLC configuration data from a network source. The process does not 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 user.

*Credits: Anonymous

CVSS Scores

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

Required

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Attack Vector

Network

Attack Complexity

Medium

Authentication

Single

Confidentiality

Partial

Integrity

Partial

Availability

Partial

Attack Vector

Local

Attack Complexity

Low

Authentication

Multiple

Confidentiality

Complete

Integrity

Complete

Availability

Complete

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2016-09-28 CVE Reserved
2016-12-15 CVE Published
2017-09-14 First Exploit
2024-08-06 CVE Updated
2025-03-30 EPSS Updated
---------- Exploited in Wild
---------- KEV Due Date

CWE

CWE-119: Improper Restriction of Operations within the Bounds of a Memory Buffer

CAPEC

References (4)

URL	Tag	Source
http://www.securityfocus.com/bid/94938	Third Party Advisory
https://ics-cert.us-cert.gov/advisories/ICSA-16-350-01	Third Party Advisory

URL	Date	SRC
https://packetstorm.news/files/id/144151	2017-09-14
https://www.exploit-db.com/exploits/42700	2024-08-06

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"	Plc Winproladder Firmware Search vendor "Fatek" for product "Plc Winproladder Firmware"	3.11 Search vendor "Fatek" for product "Plc Winproladder Firmware" and version "3.11"	build_14701	Affected	in	Fatek Search vendor "Fatek"	Plc Winproladder Search vendor "Fatek" for product "Plc Winproladder"	-	-	Safe