CVE-2021-43556

FATEK Automation WinProladder

Severity Score

7.8

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

FATEK WinProladder Versions 3.30_24518 and prior are vulnerable to a stack-based buffer overflow while processing project files, which may allow an attacker to execute arbitrary code.

Las versiones 3.30_24518 y anteriores de FATEK WinProladder son vulnerables a un desbordamiento del búfer en la región stack de la memoria mientras son procesados archivos de proyecto, lo que puede permitir a un atacante ejecutar código arbitrario

This vulnerability allows remote attackers to execute arbitrary code on affected installations of Fatek Automation 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 PDW files. The issue results from the lack of proper validation of the length of user-supplied data prior to copying it to a stack-based buffer. An attacker can leverage this vulnerability to execute code in the context of the current process.

*Credits: xina1i

Attack Vector

Local

Attack Complexity

Low

Privileges Required

None

User Interaction

Required

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

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

2021-11-08 CVE Reserved
2021-12-28 CVE Published
2024-06-22 EPSS Updated
2024-09-16 CVE Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-121: Stack-based Buffer Overflow
CWE-787: Out-of-bounds Write

CAPEC

References (4)

URL	Tag	Source
https://us-cert.cisa.gov/ics/advisories/icsa-21-320-01	Mitigation
https://www.zerodayinitiative.com/advisories/ZDI-22-029	Third Party Advisory
https://www.zerodayinitiative.com/advisories/ZDI-22-031	Third Party Advisory
https://www.zerodayinitiative.com/advisories/ZDI-22-032	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"		Winproladder Search vendor "Fatek" for product "Winproladder"				<= 3.30_24518 Search vendor "Fatek" for product "Winproladder" and version " <= 3.30_24518"		-		Affected