CVE-2021-22787

Severity Score

7.5

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

A CWE-20: Improper Input Validation vulnerability exists that could cause denial of service of the device when an attacker sends a specially crafted HTTP request to the web server of the device. Affected Product: Modicon M340 CPUs: BMXP34 (Versions prior to V3.40), Modicon M340 X80 Ethernet Communication Modules: BMXNOE0100 (H), BMXNOE0110 (H), BMXNOC0401, BMXNOR0200H RTU (All Versions), Modicon Premium Processors with integrated Ethernet (Copro): TSXP574634, TSXP575634, TSXP576634 (All Versions), Modicon Quantum Processors with Integrated Ethernet (Copro): 140CPU65xxxxx (All Versions), Modicon Quantum Communication Modules: 140NOE771x1, 140NOC78x00, 140NOC77101 (All Versions), Modicon Premium Communication Modules: TSXETY4103, TSXETY5103 (All Versions)

Una CWE-20: Se presenta una vulnerabilidad de Comprobación de Entrada Inapropiada que podría causar una denegación de servicio del dispositivo cuando un atacante envía una petición HTTP especialmente diseñada al servidor web del dispositivo. Producto afectado: CPUs Modicon M340: BMXP34 (Versiones anteriores a V3.40), Módulos de Comunicación Ethernet Modicon M340 X80: BMXNOE0100 (H), BMXNOE0110 (H), BMXNOC0401, BMXNOR0200H RTU (Todas las versiones), Procesadores Modicon Premium con Ethernet integrada (Copro): TSXP574634, TSXP575634, TSXP576634 (Todas las versiones), Procesadores Modicon Quantum con Ethernet integrado (Copro): 140CPU65xxxxx (Todas las versiones), Módulos de comunicación Modicon Quantum: 140NOE771x1, 140NOC78x00, 140NOC77101 (Todas las versiones), Módulos de comunicación Modicon Premium: TSXETY4103, TSXETY5103 (todas las versiones)

*Credits: N/A

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

High

Attack Vector

Network

Attack Complexity

Low

Authentication

None

Confidentiality

None

Integrity

None

Availability

Partial

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2021-01-06 CVE Reserved
2022-02-11 CVE Published
2023-09-04 EPSS Updated
2024-08-03 CVE Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-20: Improper Input Validation

CAPEC

References (1)

URL	Tag	Source

URL	Date	SRC

URL	Date	SRC
https://download.schneider-electric.com/files?p_Doc_Ref=SEVD-2021-257-02	2024-04-10

URL	Date	SRC

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Schneider-electric Search vendor "Schneider-electric"	Modicon M340 Bmxp342020 Firmware Search vendor "Schneider-electric" for product "Modicon M340 Bmxp342020 Firmware"	< 3.40 Search vendor "Schneider-electric" for product "Modicon M340 Bmxp342020 Firmware" and version " < 3.40"	-	Affected	in	Schneider-electric Search vendor "Schneider-electric"	Modicon M340 Bmxp342020 Search vendor "Schneider-electric" for product "Modicon M340 Bmxp342020"	-	-	Safe
Schneider-electric Search vendor "Schneider-electric"	Bmxnoe0100 Firmware Search vendor "Schneider-electric" for product "Bmxnoe0100 Firmware"	*	-	Affected	in	Schneider-electric Search vendor "Schneider-electric"	Bmxnoe0100 Search vendor "Schneider-electric" for product "Bmxnoe0100"	-	-	Safe
Schneider-electric Search vendor "Schneider-electric"	Bmxnoe0110 Firmware Search vendor "Schneider-electric" for product "Bmxnoe0110 Firmware"	*	-	Affected	in	Schneider-electric Search vendor "Schneider-electric"	Bmxnoe0110 Search vendor "Schneider-electric" for product "Bmxnoe0110"	-	-	Safe
Schneider-electric Search vendor "Schneider-electric"	Bmxnoc0401 Firmware Search vendor "Schneider-electric" for product "Bmxnoc0401 Firmware"	*	-	Affected	in	Schneider-electric Search vendor "Schneider-electric"	Bmxnoc0401 Search vendor "Schneider-electric" for product "Bmxnoc0401"	-	-	Safe
Schneider-electric Search vendor "Schneider-electric"	Bmxnor0200h Rtu Firmware Search vendor "Schneider-electric" for product "Bmxnor0200h Rtu Firmware"	*	-	Affected	in	Schneider-electric Search vendor "Schneider-electric"	Bmxnor0200h Rtu Search vendor "Schneider-electric" for product "Bmxnor0200h Rtu"	-	-	Safe
Schneider-electric Search vendor "Schneider-electric"	Tsxp574634 Firmware Search vendor "Schneider-electric" for product "Tsxp574634 Firmware"	*	-	Affected	in	Schneider-electric Search vendor "Schneider-electric"	Tsxp574634 Search vendor "Schneider-electric" for product "Tsxp574634"	-	-	Safe
Schneider-electric Search vendor "Schneider-electric"	Tsxp575634 Firmware Search vendor "Schneider-electric" for product "Tsxp575634 Firmware"	*	-	Affected	in	Schneider-electric Search vendor "Schneider-electric"	Tsxp575634 Search vendor "Schneider-electric" for product "Tsxp575634"	-	-	Safe
Schneider-electric Search vendor "Schneider-electric"	Tsxp576634 Firmware Search vendor "Schneider-electric" for product "Tsxp576634 Firmware"	*	-	Affected	in	Schneider-electric Search vendor "Schneider-electric"	Tsxp576634 Search vendor "Schneider-electric" for product "Tsxp576634"	-	-	Safe
Schneider-electric Search vendor "Schneider-electric"	140cpu65150 Firmware Search vendor "Schneider-electric" for product "140cpu65150 Firmware"	*	-	Affected	in	Schneider-electric Search vendor "Schneider-electric"	140cpu65150 Search vendor "Schneider-electric" for product "140cpu65150"	-	-	Safe
Schneider-electric Search vendor "Schneider-electric"	140noe771x1 Firmware Search vendor "Schneider-electric" for product "140noe771x1 Firmware"	*	-	Affected	in	Schneider-electric Search vendor "Schneider-electric"	140noe771x1 Search vendor "Schneider-electric" for product "140noe771x1"	-	-	Safe
Schneider-electric Search vendor "Schneider-electric"	140noc78x00 Firmware Search vendor "Schneider-electric" for product "140noc78x00 Firmware"	*	-	Affected	in	Schneider-electric Search vendor "Schneider-electric"	140noc78x00 Search vendor "Schneider-electric" for product "140noc78x00"	-	-	Safe
Schneider-electric Search vendor "Schneider-electric"	140noc77101 Firmware Search vendor "Schneider-electric" for product "140noc77101 Firmware"	*	-	Affected	in	Schneider-electric Search vendor "Schneider-electric"	140noc77101 Search vendor "Schneider-electric" for product "140noc77101"	-	-	Safe
Schneider-electric Search vendor "Schneider-electric"	Tsxety4103 Firmware Search vendor "Schneider-electric" for product "Tsxety4103 Firmware"	*	-	Affected	in	Schneider-electric Search vendor "Schneider-electric"	Tsxety4103 Search vendor "Schneider-electric" for product "Tsxety4103"	-	-	Safe
Schneider-electric Search vendor "Schneider-electric"	Tsxety5103 Firmware Search vendor "Schneider-electric" for product "Tsxety5103 Firmware"	*	-	Affected	in	Schneider-electric Search vendor "Schneider-electric"	Tsxety5103 Search vendor "Schneider-electric" for product "Tsxety5103"	-	-	Safe