CVE-2024-33895

Cosy+ devices running a firmware 21.x below 21.2s10 or a firmware 22.x below 22.1s3 use a unique key to encrypt the configuration parameters. This is fixed in version 21.2s10 and 22.1s3, the key is now unique per device.

CVSS v3 6.6 MEDIUM

6.6^/10

CVSS v3 : MEDIUM

V3 Legend

Vector :

Exploitability : 0.7 / Impact : 5.9

Attack Vector PHYSICAL

Attack Complexity LOW

Privileges Required NONE

User Interaction REQUIRED

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://blog.syss.com/posts/hacking-a-secure-industrial-remote-access-gateway/	Exploit Third Party Advisory
https://hmsnetworks.blob.core.windows.net/nlw/docs/default-source/products/cybersecurity/security-advisory/hms-security-advisory-2024-07-29-001--ewon-several-cosy--vulnerabilities.pdf	Vendor Advisory
https://www.ewon.biz/products/cosy/ewon-cosy-wifi	Product
https://www.hms-networks.com/cyber-security	Vendor Advisory

Configurations

Configuration 1 (hide)

AND

OR	cpe:2.3:o:hms-networks:ewon_cosy\+_firmware::::::::
	cpe:2.3:o:hms-networks:ewon_cosy\+_firmware::::::::

OR	cpe:2.3:h:hms-networks:ewon_cosy\+_4g_apac:-:::::::*
	cpe:2.3:h:hms-networks:ewon_cosy\+_4g_eu:-:::::::*
	cpe:2.3:h:hms-networks:ewon_cosy\+_4g_jp:-:::::::*
	cpe:2.3:h:hms-networks:ewon_cosy\+_4g_na:-:::::::*
	cpe:2.3:h:hms-networks:ewon_cosy\+_ethernet:-:::::::*
	cpe:2.3:h:hms-networks:ewon_cosy\+_wifi:-:::::::*

History

03 Sep 2024, 19:02

Type	Values Removed	Values Added
CPE		cpe:2.3:h:hms-networks:ewon_cosy\+_ethernet:-:::::::* cpe:2.3:o:hms-networks:ewon_cosy\+_firmware:::::::: cpe:2.3:h:hms-networks:ewon_cosy\+_4g_eu:-:::::::* cpe:2.3:h:hms-networks:ewon_cosy\+_wifi:-:::::::* cpe:2.3:h:hms-networks:ewon_cosy\+_4g_na:-:::::::* cpe:2.3:h:hms-networks:ewon_cosy\+_4g_jp:-:::::::* cpe:2.3:h:hms-networks:ewon_cosy\+_4g_apac:-:::::::*
CVSS	v2 : ~~unknown~~ v3 : ~~unknown~~	v2 : unknown v3 : 6.6
References	~~() https://blog.syss.com/posts/hacking-a-secure-industrial-remote-access-gateway/ -~~	() https://blog.syss.com/posts/hacking-a-secure-industrial-remote-access-gateway/ - Exploit, Third Party Advisory
References	~~() https://hmsnetworks.blob.core.windows.net/nlw/docs/default-source/products/cybersecurity/security-advisory/hms-security-advisory-2024-07-29-001--ewon-several-cosy--vulnerabilities.pdf -~~	() https://hmsnetworks.blob.core.windows.net/nlw/docs/default-source/products/cybersecurity/security-advisory/hms-security-advisory-2024-07-29-001--ewon-several-cosy--vulnerabilities.pdf - Vendor Advisory
References	~~() https://www.ewon.biz/products/cosy/ewon-cosy-wifi -~~	() https://www.ewon.biz/products/cosy/ewon-cosy-wifi - Product
References	~~() https://www.hms-networks.com/cyber-security -~~	() https://www.hms-networks.com/cyber-security - Vendor Advisory
First Time		Hms-networks ewon Cosy\+ 4g Na Hms-networks ewon Cosy\+ Wifi Hms-networks ewon Cosy\+ 4g Apac Hms-networks ewon Cosy\+ 4g Jp Hms-networks ewon Cosy\+ Firmware Hms-networks ewon Cosy\+ 4g Eu Hms-networks ewon Cosy\+ Ethernet Hms-networks
CWE		CWE-798

12 Aug 2024, 16:15

Type	Values Removed	Values Added
References		() https://blog.syss.com/posts/hacking-a-secure-industrial-remote-access-gateway/ -

05 Aug 2024, 12:41

Type	Values Removed	Values Added
Summary		(es) Los dispositivos Cosy+ que ejecutan un firmware 21.x inferior a 21.2s10 o un firmware 22.x inferior a 22.1s3 utilizan una clave única para cifrar los parámetros de configuración. Esto se solucionó en las versiones 21.2s10 y 22.1s3, la clave ahora es única por dispositivo.

02 Aug 2024, 18:16

Type	Values Removed	Values Added
New CVE

Information

Published : 2024-08-02 18:16

Updated : 2024-09-03 19:02

NVD link : CVE-2024-33895

Mitre link : CVE-2024-33895

CVE.ORG link : CVE-2024-33895

JSON object : View

Products Affected

hms-networks

ewon_cosy\+_4g_eu
ewon_cosy\+_4g_apac
ewon_cosy\+_4g_jp
ewon_cosy\+_wifi
ewon_cosy\+_firmware
ewon_cosy\+_4g_na
ewon_cosy\+_ethernet

CWE

CWE-798

Use of Hard-coded Credentials

6.6 /10