CVE-2021-22764 MEDIUM

Published: 2021-06-11 | Last Modified: 2026-05-29 | Status: Modified

Description

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.

Additional Descriptions (1)

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

CVSS Metrics

Base Score: 5.3 (MEDIUM)

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

Attack Vector	NETWORK
Attack Complexity	LOW
Privileges Required	NONE
User Interaction	NONE
Scope	UNCHANGED
Confidentiality Impact	NONE
Integrity Impact	NONE
Availability Impact	LOW

Source: [email protected]

Type: Primary

Exploitability Score: 3.9

Impact Score: 1.4

Base Score: 5.0 (MEDIUM)

AV:N/AC:L/Au:N/C:N/I:N/A:P

Access Vector	NETWORK
Access Complexity	LOW
Authentication	NONE
Confidentiality Impact	NONE
Integrity Impact	NONE
Availability Impact	PARTIAL

Source: [email protected]

Type: Primary

Exploitability Score: 10.0

Impact Score: 2.9

Weaknesses

Source	Type	Description
[email protected]	Secondary	en CWE-287

Affected Products

Vendor	Product	Version	Update	Type
schneider-electric	powerlogic_pm5560_firmware	*	<built-in method update of dict object at 0x7e6111c1f200>	Operating System
schneider-electric	powerlogic_pm5561_firmware	*	<built-in method update of dict object at 0x7e6111c1f800>	Operating System
schneider-electric	powerlogic_pm5562_firmware	*	<built-in method update of dict object at 0x7e60bacd42c0>	Operating System
schneider-electric	powerlogic_pm5563_firmware	*	<built-in method update of dict object at 0x7e61123919c0>	Operating System

Affected Configurations

Operator: OR

Vulnerable	CPE
Yes	`cpe:2.3:o:schneider-electric:powerlogic_pm5560_firmware::::::::`

Operator: OR

Vulnerable	CPE
No	`cpe:2.3:h:schneider-electric:powerlogic_pm5560:-:::::::*`

Operator: OR

Vulnerable	CPE
Yes	`cpe:2.3:o:schneider-electric:powerlogic_pm5561_firmware::::::::`

Operator: OR

Vulnerable	CPE
No	`cpe:2.3:h:schneider-electric:powerlogic_pm5561:-:::::::*`

Operator: OR

Vulnerable	CPE
Yes	`cpe:2.3:o:schneider-electric:powerlogic_pm5562_firmware::::::::`

Operator: OR

Vulnerable	CPE
No	`cpe:2.3:h:schneider-electric:powerlogic_pm5562:-:::::::*`

Operator: OR

Vulnerable	CPE
Yes	`cpe:2.3:o:schneider-electric:powerlogic_pm5563_firmware::::::::`

Operator: OR

Vulnerable	CPE
No	`cpe:2.3:h:schneider-electric:powerlogic_pm5563:-:::::::*`

References

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
Source: [email protected]
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
Source: af854a3a-2127-422b-91ae-364da2661108