CVE-2021-22764 : A CWE-287: Improper Authentication vulnerability exists in PowerLogic PM55xx, Po

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.

Published 2021-06-11 16:15:10

Updated 2024-11-24 15:15:05

Source Schneider Electric SE

View at NVD, CVE.org

Products affected by CVE-2021-22764

Schneider-electric » Powerlogic Pm5560 Firmware
Versions before (<) 2.7.8
cpe:2.3:o:schneider-electric:powerlogic_pm5560_firmware:*:*:*:*:*:*:*:*
Matching versions
When used together with: Schneider-electric » Powerlogic Pm5560 » Version: N/A
Schneider-electric » Powerlogic Pm5561 Firmware
Versions before (<) 10.7.3
cpe:2.3:o:schneider-electric:powerlogic_pm5561_firmware:*:*:*:*:*:*:*:*
Matching versions
When used together with: Schneider-electric » Powerlogic Pm5561 » Version: N/A
Schneider-electric » Powerlogic Pm5562 Firmware
Versions up to, including, (<=) 2.5.4
cpe:2.3:o:schneider-electric:powerlogic_pm5562_firmware:*:*:*:*:*:*:*:*
Matching versions
When used together with: Schneider-electric » Powerlogic Pm5562 » Version: N/A
Schneider-electric » Powerlogic Pm5563 Firmware
Versions before (<) 2.7.8
cpe:2.3:o:schneider-electric:powerlogic_pm5563_firmware:*:*:*:*:*:*:*:*
Matching versions
When used together with: Schneider-electric » Powerlogic Pm5563 » Version: N/A

Exploit prediction scoring system (EPSS) score for CVE-2021-22764

EPSS FAQ

0.48%

Probability of exploitation activity in the next 30 days EPSS Score History

~ 63 %

Percentile, the proportion of vulnerabilities that are scored at or less

CVSS scores for CVE-2021-22764

Base Score	Base Severity	CVSS Vector	Exploitability Score	Impact Score	Score Source
5.0	MEDIUM	AV:N/AC:L/Au:N/C:N/I:N/A:P	10.0	2.9	NIST
Access Vector: Network Access Complexity: Low Authentication: None Confidentiality Impact: None Integrity Impact: None Availability Impact: Partial
5.3	MEDIUM	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L	3.9	1.4	NIST
Attack Vector: Network Attack Complexity: Low Privileges Required: None User Interaction: None Scope: Unchanged Confidentiality: None Integrity: None Availability: Low

CWE ids for CVE-2021-22764

CWE-287 Improper Authentication

When an actor claims to have a given identity, the product does not prove or insufficiently proves that the claim is correct.

Assigned by: cybersecurity@se.com (Secondary)

References for CVE-2021-22764

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Vulnerability Details : CVE-2021-22764

Products affected by CVE-2021-22764

Exploit prediction scoring system (EPSS) score for CVE-2021-22764

CVSS scores for CVE-2021-22764

CWE ids for CVE-2021-22764

References for CVE-2021-22764