VulnerabilityModified
CVE-2024-33896
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.
HIGH 7.2EPSS 4.02%
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (4.02%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
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.
- CVSS 3.1
- 7.2 HIGHCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 4.02% probability · 90th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-78
- Affected
- hms-networks/ewon cosy\+ firmware
- Source
- cve@mitre.org
References
- 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.pdfVendor Advisory
- https://www.ewon.biz/products/cosy/ewon-cosy-wifiProduct
- https://www.hms-networks.com/cyber-securityVendor Advisory
- http://seclists.org/fulldisclosure/2024/Aug/21
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.