CVE-2024-33896

HIGH

Hms-networks Ewon Cosy+ Firmware < 21.2s10 - OS Command Injection

Title source: rule

Description

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.

Exploits (1)

exploitdb WORKING POC

by CodeB0ss · pythonhardwaremultiple

https://www.exploit-db.com/exploits/52160

View Code ZIP pw:eip

References (5)

[Exploit, Third Party Advisory] https://blog.syss.com/posts/hacking-a-secure-industrial-remote-access-gateway/

[Vendor 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

[Product] https://www.ewon.biz/products/cosy/ewon-cosy-wifi

[Vendor Advisory] https://www.hms-networks.com/cyber-security

[Mailing List] http://seclists.org/fulldisclosure/2024/Aug/21

Scores

CVSS v3 7.2

EPSS 0.1886

EPSS Percentile 95.3%

Attack Vector NETWORK

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

Details

CWE

CWE-78

Status published

Products (1)

hms-networks/ewon_cosy\+_firmware 21.0 - 21.2s10

Published Aug 02, 2024

Tracked Since Feb 18, 2026