CVE-2024-33896

2024-08-0218:16:19

CWE-78

[email protected]

web.nvd.nist.gov

cosy+ devices

code injection

parameter blacklisting

firmware vulnerability

CVSS3

7.2

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

HIGH

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

EPSS

0.002

Percentile

52.4%

JSON

Cosy+ devices running a firmware 21.x below 21.2s10 or a firmware 22.x below 22.1s3 are vulnerable to code injection due to improper parameter blacklisting. This is fixed in version 21.2s10 and 22.1s3.

Affected configurations

Nvd

Node

hms-networksewon_cosy\+_firmwareRange21.0–21.2s10

hms-networksewon_cosy\+_firmwareRange22.0–22.1s3

AND

hms-networksewon_cosy\+_4g_apacMatch-

hms-networksewon_cosy\+_4g_euMatch-

hms-networksewon_cosy\+_4g_jpMatch-

hms-networksewon_cosy\+_4g_naMatch-

hms-networksewon_cosy\+_ethernetMatch-

hms-networksewon_cosy\+_wifiMatch-

VendorProductVersionCPE
hms-networksewon_cosy\+_firmware*cpe:2.3:o:hms-networks:ewon_cosy\+_firmware:*:*:*:*:*:*:*:*
hms-networksewon_cosy\+_4g_apac-cpe:2.3:h:hms-networks:ewon_cosy\+_4g_apac:-:*:*:*:*:*:*:*
hms-networksewon_cosy\+_4g_eu-cpe:2.3:h:hms-networks:ewon_cosy\+_4g_eu:-:*:*:*:*:*:*:*
hms-networksewon_cosy\+_4g_jp-cpe:2.3:h:hms-networks:ewon_cosy\+_4g_jp:-:*:*:*:*:*:*:*
hms-networksewon_cosy\+_4g_na-cpe:2.3:h:hms-networks:ewon_cosy\+_4g_na:-:*:*:*:*:*:*:*
hms-networksewon_cosy\+_ethernet-cpe:2.3:h:hms-networks:ewon_cosy\+_ethernet:-:*:*:*:*:*:*:*
hms-networksewon_cosy\+_wifi-cpe:2.3:h:hms-networks:ewon_cosy\+_wifi:-:*:*:*:*:*:*:*

Vendor	Product	Version	CPE
hms-networks	ewon_cosy\+_firmware	*	cpe:2.3:o:hms-networks:ewon_cosy\+_firmware::::::::
hms-networks	ewon_cosy\+_4g_apac	-	cpe:2.3:h:hms-networks:ewon_cosy\+_4g_apac:-:::::::*
hms-networks	ewon_cosy\+_4g_eu	-	cpe:2.3:h:hms-networks:ewon_cosy\+_4g_eu:-:::::::*
hms-networks	ewon_cosy\+_4g_jp	-	cpe:2.3:h:hms-networks:ewon_cosy\+_4g_jp:-:::::::*
hms-networks	ewon_cosy\+_4g_na	-	cpe:2.3:h:hms-networks:ewon_cosy\+_4g_na:-:::::::*
hms-networks	ewon_cosy\+_ethernet	-	cpe:2.3:h:hms-networks:ewon_cosy\+_ethernet:-:::::::*
hms-networks	ewon_cosy\+_wifi	-	cpe:2.3:h:hms-networks:ewon_cosy\+_wifi:-:::::::*

References

blog.syss.com/posts/hacking-a-secure-industrial-remote-access-gateway/

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

www.ewon.biz/products/cosy/ewon-cosy-wifi

www.hms-networks.com/cyber-security