CVE-2021-22764

Severity Score

5.3

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

A CWE-287: Improper Authentication vulnerability exists in PowerLogic PM55xx, PowerLogic PM8ECC, PowerLogic EGX100 and PowerLogic EGX300 (see security notification for version infromation) that could cause loss of connectivity to the device via Modbus TCP protocol when an attacker sends a specially crafted HTTP request.

Un CWE-287: Se presenta una vulnerabilidad de autenticación inapropiada en PowerLogic PM55xx, PowerLogic PM8ECC, PowerLogic EGX100 y PowerLogic EGX300 (véase la notificación de seguridad para obtener información sobre la versión) que podría causar la pérdida de conectividad con el dispositivo por medio del protocolo Modbus TCP cuando un atacante envía una petición HTTP especialmente diseñada

*Credits: N/A

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

Low

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
2021-06-11 CVE Published
2024-04-19 EPSS Updated
2024-11-24 CVE Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-287: Improper Authentication

CAPEC

References (2)

URL	Tag	Source
http://download.schneider-electric.com/files?p_Doc_Ref=SEVD-2021-159-02%2Chttp://download.schneider-electric.com/files?p_Doc_Ref=SEVD-2021-159-03
https://download.schneider-electric.com/files?p_Doc_Ref=SEVD-2021-159-02&p_enDocType=Security+and+Safety+Notice&p_File_Name=SEVD-2021-159-02.pdf	X_refsource_misc

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
Schneider-electric Search vendor "Schneider-electric"	Powerlogic Pm5560 Firmware Search vendor "Schneider-electric" for product "Powerlogic Pm5560 Firmware"	< 2.7.8 Search vendor "Schneider-electric" for product "Powerlogic Pm5560 Firmware" and version " < 2.7.8"	-	Affected	in	Schneider-electric Search vendor "Schneider-electric"	Powerlogic Pm5560 Search vendor "Schneider-electric" for product "Powerlogic Pm5560"	-	-	Safe
Schneider-electric Search vendor "Schneider-electric"	Powerlogic Pm5561 Firmware Search vendor "Schneider-electric" for product "Powerlogic Pm5561 Firmware"	< 10.7.3 Search vendor "Schneider-electric" for product "Powerlogic Pm5561 Firmware" and version " < 10.7.3"	-	Affected	in	Schneider-electric Search vendor "Schneider-electric"	Powerlogic Pm5561 Search vendor "Schneider-electric" for product "Powerlogic Pm5561"	-	-	Safe
Schneider-electric Search vendor "Schneider-electric"	Powerlogic Pm5562 Firmware Search vendor "Schneider-electric" for product "Powerlogic Pm5562 Firmware"	<= 2.5.4 Search vendor "Schneider-electric" for product "Powerlogic Pm5562 Firmware" and version " <= 2.5.4"	-	Affected	in	Schneider-electric Search vendor "Schneider-electric"	Powerlogic Pm5562 Search vendor "Schneider-electric" for product "Powerlogic Pm5562"	-	-	Safe
Schneider-electric Search vendor "Schneider-electric"	Powerlogic Pm5563 Firmware Search vendor "Schneider-electric" for product "Powerlogic Pm5563 Firmware"	< 2.7.8 Search vendor "Schneider-electric" for product "Powerlogic Pm5563 Firmware" and version " < 2.7.8"	-	Affected	in	Schneider-electric Search vendor "Schneider-electric"	Powerlogic Pm5563 Search vendor "Schneider-electric" for product "Powerlogic Pm5563"	-	-	Safe