CVE-2021-33032

  1. OpenCVE
  2. Vulnerabilities (CVE)
  3. 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.

10.0 /10

CVSS v3 : CRITICAL

V3 Legend

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

V2 Legend

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

21 Nov 2024, 06:08

Type Values Removed Values Added
References () https://novag.github.io/posts/homematic-unauthenticated-remote-code-execution/ - Exploit, Third Party Advisory () https://novag.github.io/posts/homematic-unauthenticated-remote-code-execution/ - Exploit, Third Party Advisory
References () 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 () 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
References () 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/firmware/ccu3-firmware/CCU3-Changelog.3.59.6.pdf - Release Notes, Vendor Advisory

30 Jul 2021, 21:15

Type Values Removed Values Added
Summary eQ-3 HomeMatic CCU2 2.57.5 and CCU3 3.57.5 devices allow remote code execution. 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.

27 Jul 2021, 15:17

Type Values Removed Values Added
CPE cpe:2.3:o:eq-3:homematic_ccu2_firmware:*:*:*:*:*:*:*:*
cpe:2.3:h:eq-3:homematic_ccu2:-:*:*:*:*:*:*:*
cpe:2.3:h:eq-3:homematic_ccu3:-:*:*:*:*:*:*:*
cpe:2.3:o:eq-3:homematic_ccu3_firmware:*:*:*:*:*:*:*:*
CWE CWE-78
CVSS v2 : unknown
v3 : unknown 		v2 : 10.0
v3 : 10.0
References (MISC) https://novag.github.io/posts/homematic-unauthenticated-remote-code-execution/ - (MISC) https://novag.github.io/posts/homematic-unauthenticated-remote-code-execution/ - Exploit, Third Party Advisory
References (MISC) https://www.eq-3.de/downloads/software/firmware/ccu3-firmware/CCU3-Changelog.3.59.6.pdf - (MISC) https://www.eq-3.de/downloads/software/firmware/ccu3-firmware/CCU3-Changelog.3.59.6.pdf - Release Notes, Vendor Advisory
References (MISC) https://www.eq-3.de/downloads/software/HM-CCU2-Firmware_Updates/HM-CCU-2.59.7/HM-CCU2-Changelog.2.59.7.pdf - (MISC) 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

22 Jul 2021, 18:43

Type Values Removed Values Added
New CVE
Information

Published : 2021-07-22 18:15

Updated : 2024-11-21 06:08

NVD link : CVE-2021-33032

Mitre link : CVE-2021-33032

CVE.ORG link : CVE-2021-33032

JSON object : View

Products Affected

eq-3

  • homematic_ccu2_firmware
  • homematic_ccu3
  • homematic_ccu3_firmware
  • homematic_ccu2
CWE
CWE-78

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