CVE-2021-33032

CVSS V2 High 10 CVSS V3 Critical 10
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.
Overview
  • CVE ID
  • CVE-2021-33032
  • Assigner
  • cve@mitre.org
  • Vulnerability Status
  • Analyzed
  • Published Version
  • 2021-07-22T18:15:23
  • Last Modified Date
  • 2021-09-21T16:18:17
Weakness Enumerations
CWE URL
CWE-78 http://cwe.mitre.org/data/definitions/78.html
CPE Configuration (Product)
CPE Vulnerable Operator Version Start Version End
AND
cpe:2.3:o:eq-3:homematic_ccu2_firmware:*:*:*:*:*:*:*:* 1 OR 2.57.5
cpe:2.3:h:eq-3:homematic_ccu2:-:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:o:eq-3:homematic_ccu3_firmware:*:*:*:*:*:*:*:* 1 OR 3.57.5
cpe:2.3:h:eq-3:homematic_ccu3:-:*:*:*:*:*:*:* 0 OR
CVSS Version 2
  • Version
  • 2.0
  • Vector String
  • AV:N/AC:L/Au:N/C:C/I:C/A:C
  • Access Vector
  • NETWORK
  • Access Compatibility
  • LOW
  • Authentication
  • NONE
  • Confidentiality Impact
  • COMPLETE
  • Integrity Impact
  • COMPLETE
  • Availability Impact
  • COMPLETE
  • Base Score
  • 10
  • Severity
  • HIGH
  • Exploitability Score
  • 10
  • Impact Score
  • 10
CVSS Version 3
  • Version
  • 3.1
  • Vector String
  • CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
  • Attack Vector
  • NETWORK
  • Attack Compatibility
  • LOW
  • Privileges Required
  • NONE
  • User Interaction
  • NONE
  • Scope
  • CHANGED
  • Confidentiality Impact
  • HIGH
  • Availability Impact
  • HIGH
  • Base Score
  • 10
  • Base Severity
  • CRITICAL
  • Exploitability Score
  • 3.9
  • Impact Score
  • 6
References
Reference URL Reference Tags
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
Sources
Source Name Source URL
NIST https://nvd.nist.gov/vuln/detail/CVE-2021-33032
MITRE https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-33032
History
Created Old Value New Value Data Type Notes
2022-05-10 06:54:21 Added to TrackCVE
2022-12-05 06:49:08 2021-07-22T18:15Z 2021-07-22T18:15:23 CVE Published Date updated
2022-12-05 06:49:08 2021-09-21T16:18:17 CVE Modified Date updated
2022-12-05 06:49:08 Analyzed Vulnerability Status updated