CVE-2024-33892

· HIGHModified

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CVSS v3.1

7.5

EPSS

0.45%

Published

Aug 2, 2024

Modified

Nov 4, 2025

Public PoC / Exploit (1)

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Links to public security research (Exploit-DB, Nuclei, Trickest, GitHub) for defensive use only.

Description

Insecure Permissions vulnerability in Cosy+ devices running a firmware 21.x below 21.2s10 or a firmware 22.x below 22.1s3 are susceptible to leaking information through cookies. This is fixed in version 21.2s10 and 22.1s3

CVSS Vector

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

Weaknesses (CWE)

CWE-312CWE-281

Affected Products (8)

hms-networks · ewon_cosy\+_firmware (up to 21.2s10)vulnerable

hms-networks · ewon_cosy\+_firmware (up to 22.1s3)vulnerable

hms-networks · ewon_cosy\+_4g_apac

hms-networks · ewon_cosy\+_4g_eu

hms-networks · ewon_cosy\+_4g_jp

hms-networks · ewon_cosy\+_4g_na

hms-networks · ewon_cosy\+_ethernet

hms-networks · ewon_cosy\+_wifi

References (5)

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

ExploitThird 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

Product

http://seclists.org/fulldisclosure/2024/Aug/20

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