CVE-2021-33032
HomeMatic CCU2/CCU3 WebUI Remote Code Execution
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.
INFO
Published Date :
July 22, 2021, 6:15 p.m.
Last Modified :
Sept. 21, 2021, 4:18 p.m.
Source :
[email protected]
Remotely Exploitable :
Yes !
Impact Score :
6.0
Exploitability Score :
3.9
Affected Products
The following products are affected by CVE-2021-33032
vulnerability.
Even if cvefeed.io is aware of the exact versions of the
products
that
are
affected, the information is not represented in the table below.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2021-33032.
| URL | 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 |
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2021-33032 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2021-33032 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
CVE Modified by [email protected]
May. 14, 2024
Action Type Old Value New Value -
Modified Analysis by [email protected]
Sep. 21, 2021
Action Type Old Value New Value -
CVE Modified by [email protected]
Jul. 30, 2021
Action Type Old Value New Value Changed Description 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. -
Initial Analysis by [email protected]
Jul. 27, 2021
Action Type Old Value New Value Added CVSS V2 NIST (AV:N/AC:L/Au:N/C:C/I:C/A:C) Added CVSS V3.1 NIST AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H Changed Reference Type https://novag.github.io/posts/homematic-unauthenticated-remote-code-execution/ No Types Assigned https://novag.github.io/posts/homematic-unauthenticated-remote-code-execution/ Exploit, Third Party Advisory Changed Reference Type https://www.eq-3.de/downloads/software/firmware/ccu3-firmware/CCU3-Changelog.3.59.6.pdf No Types Assigned https://www.eq-3.de/downloads/software/firmware/ccu3-firmware/CCU3-Changelog.3.59.6.pdf Release Notes, Vendor Advisory Changed Reference Type https://www.eq-3.de/downloads/software/HM-CCU2-Firmware_Updates/HM-CCU-2.59.7/HM-CCU2-Changelog.2.59.7.pdf No Types Assigned 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 Added CWE NIST CWE-78 Added CPE Configuration AND OR *cpe:2.3:o:eq-3:homematic_ccu2_firmware:*:*:*:*:*:*:*:* versions up to (including) 2.57.5 OR cpe:2.3:h:eq-3:homematic_ccu2:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:eq-3:homematic_ccu3_firmware:*:*:*:*:*:*:*:* versions up to (including) 3.57.5 OR cpe:2.3:h:eq-3:homematic_ccu3:-:*:*:*:*:*:*:*
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2021-33032 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2021-33032
weaknesses.
Exploit Prediction
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.
3.43 }} 0.19%
score
0.91620
percentile