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CVE-2021-33032

Published: Jul 22, 2021Updated: Nov 21, 2024 Sources: CVE List NVDCWE-78
NVD MITRE
10.0CVSSCRITICAL
EPSS Score
52.2%
Top 1.2%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available

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 Vector Breakdown

AV:NAC:LPR:NUI:NS:CC:HI:HA:H
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:NPrivileges Required
None
UI:NUser Interaction
None
Scope
S:CScope
Changed
Impact
C:HConfidentiality
High
I:HIntegrity
High
A:HAvailability
High
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Weaknesses

CWE-78

Affected Products

n/an/a
homematic ccu2 firmwareeq-3
Embedded
ICS / OT / IoT / smart-home
homematic ccu3 firmwareeq-3
Embedded
ICS / OT / IoT / smart-home
eq-3commercialDEICS / OT / IoTaka homematic

Attack Graph

Products CVE Techniques Tactics

Click technique nodes to view MITRE ATT&CK details. Scroll to zoom, drag to pan.

Exploitability

Official Patch Available

MITRE ATT&CK

1 technique
Execution
View detailed technique mapping

References

https://novag.github.io/posts/homematic-unauthenticated-remote-code-execution/
novag.github.io
https://www.eq-3.de/downloads/software/HM-CCU2-Firmware_Updates/HM-CCU-2.59.7/HM-CCU2-Changelog.2.59.7.pdf
eq-3.de
https://www.eq-3.de/downloads/software/firmware/ccu3-firmware/CCU3-Changelog.3.59.6.pdf
eq-3.de

Timeline

Published
Jul 22, 2021
Last Updated
Nov 21, 2024

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