CVE-2021-41545
"Siemens Desigo DXR2/PXC3/PXC4/PXC5 BACnet Protocol Denial of Service"
Description
A vulnerability has been identified in Desigo DXR2 (All versions < V01.21.142.5-22), Desigo PXC3 (All versions < V01.21.142.4-18), Desigo PXC4 (All versions < V02.20.142.10-10884), Desigo PXC5 (All versions < V02.20.142.10-10884). When the controller receives a specific BACnet protocol packet, an exception causes the BACnet communication function to go into a “out of work” state and could result in the controller going into a “factory reset” state.
INFO
Published Date :
May 10, 2022, 11:15 a.m.
Last Modified :
May 19, 2022, 5:09 p.m.
Source :
[email protected]
Remotely Exploitable :
Yes !
Impact Score :
3.6
Exploitability Score :
3.9
Affected Products
The following products are affected by CVE-2021-41545
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-2021-41545.
| URL | Resource |
|---|---|
| https://cert-portal.siemens.com/productcert/pdf/ssa-662649.pdf | 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-2021-41545 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2021-41545 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 -
Initial Analysis by [email protected]
May. 19, 2022
Action Type Old Value New Value Added CVSS V2 NIST (AV:N/AC:L/Au:N/C:N/I:N/A:P) Added CVSS V3.1 NIST AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Changed Reference Type https://cert-portal.siemens.com/productcert/pdf/ssa-662649.pdf No Types Assigned https://cert-portal.siemens.com/productcert/pdf/ssa-662649.pdf Vendor Advisory Added CWE NIST NVD-CWE-noinfo Added CPE Configuration AND OR *cpe:2.3:o:siemens:desigo_dxr2_firmware:*:*:*:*:*:*:*:* versions up to (excluding) 01.21.142.5-22 OR cpe:2.3:h:siemens:desigo_dxr2:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:siemens:desigo_pxc3_firmware:*:*:*:*:*:*:*:* versions up to (excluding) 01.21.142.4-18 OR cpe:2.3:h:siemens:desigo_pxc3:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:siemens:desigo_pxc4_firmware:*:*:*:*:*:*:*:* versions up to (excluding) 02.20.142.10-10884 OR cpe:2.3:h:siemens:desigo_pxc4:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:siemens:desigo_pxc5_firmware:*:*:*:*:*:*:*:* versions up to (excluding) 02.20.142.10-10884 OR cpe:2.3:h:siemens:desigo_pxc5:-:*:*:*:*:*:*:*
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2021-41545 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-2021-41545
weaknesses.
Exploit Prediction
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.
0.09 }} 0.00%
score
0.37449
percentile