CVE-2021-33032

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 v3.0 10.0 CRITICAL
CVSS v2.0 10.0 HIGH

10.0^/10

CVSS v3.0 : CRITICAL

Vector :

Exploitability : 3.9 / Impact : 6.0

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope CHANGED

10.0^/10

CVSS v2.0 : HIGH

Vector : AV:N/AC:L/Au:N/C:C/I:C/A:C

Exploitability : 10.0 / Impact : 10.0

Access Vector NETWORK

Access Complexity LOW

Authentication NONE

Confidentiality Impact COMPLETE

Integrity Impact COMPLETE

Availability Impact COMPLETE

References

Link	Resource
https://novag.github.io/posts/homematic-unauthenticated-remote-code-execution/	Exploit Third Party Advisory
https://www.eq-3.de/downloads/software/firmware/ccu3-firmware/CCU3-Changelog.3.59.6.pdf	Release Notes Vendor Advisory
https://www.eq-3.de/downloads/software/HM-CCU2-Firmware_Updates/HM-CCU-2.59.7/HM-CCU2-Changelog.2.59.7.pdf	Release Notes Vendor Advisory

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Configurations

Configuration 1 (hide)

AND

cpe:2.3:o:eq-3:homematic_ccu2_firmware:*:*:*:*:*:*:*:*

cpe:2.3:h:eq-3:homematic_ccu2:-:*:*:*:*:*:*:*

Configuration 2 (hide)

AND

cpe:2.3:o:eq-3:homematic_ccu3_firmware:*:*:*:*:*:*:*:*

cpe:2.3:h:eq-3:homematic_ccu3:-:*:*:*:*:*:*:*

Information

Published : 2021-07-22 11:15

Updated : 2021-09-21 09:18

NVD link : CVE-2021-33032

Mitre link : CVE-2021-33032

JSON object : View

CWE

CWE-78

Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')

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Products Affected

eq-3

homematic_ccu2_firmware
homematic_ccu3
homematic_ccu3_firmware
homematic_ccu2

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