Vulnerability Description
A Remote Code Execution (RCE) vulnerability in the WebUI component of the eQ-3 HomeMatic CCU2 firmware up to and including version 2.57.5 and CCU3 firmware up to and including version 3.57.5 allows remote unauthenticated attackers to execute system commands as root via a simple HTTP request.
CVSS Score
CRITICAL
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Eq-3 | Homematic Ccu2 Firmware | <= 2.57.5 |
| Eq-3 | Homematic Ccu2 | - |
| Eq-3 | Homematic Ccu3 Firmware | <= 3.57.5 |
| Eq-3 | Homematic Ccu3 | - |
Related Weaknesses (CWE)
References
- https://novag.github.io/posts/homematic-unauthenticated-remote-code-execution/ExploitThird Party Advisory
- https://www.eq-3.de/downloads/software/HM-CCU2-Firmware_Updates/HM-CCU-2.59.7/HMRelease NotesVendor Advisory
- https://www.eq-3.de/downloads/software/firmware/ccu3-firmware/CCU3-Changelog.3.5Release NotesVendor Advisory
- https://novag.github.io/posts/homematic-unauthenticated-remote-code-execution/ExploitThird Party Advisory
- https://www.eq-3.de/downloads/software/HM-CCU2-Firmware_Updates/HM-CCU-2.59.7/HMRelease NotesVendor Advisory
- https://www.eq-3.de/downloads/software/firmware/ccu3-firmware/CCU3-Changelog.3.5Release NotesVendor Advisory
FAQ
What is CVE-2021-33032?
CVE-2021-33032 is a vulnerability with a CVSS score of 10.0 (CRITICAL). A Remote Code Execution (RCE) vulnerability in the WebUI component of the eQ-3 HomeMatic CCU2 firmware up to and including version 2.57.5 and CCU3 firmware up to and including version 3.57.5 allows re...
How severe is CVE-2021-33032?
CVE-2021-33032 has been rated CRITICAL with a CVSS base score of 10.0/10. This is considered a critical vulnerability requiring immediate attention.
Is there a patch for CVE-2021-33032?
Check the references section above for vendor advisories and patch information. Affected products include: Eq-3 Homematic Ccu2 Firmware, Eq-3 Homematic Ccu2, Eq-3 Homematic Ccu3 Firmware, Eq-3 Homematic Ccu3.