CVE-2021-33542
Phoenix Contact Classic Automation Worx Software Suite Remote Code Execution Vulnerability
Description
Phoenix Contact Classic Automation Worx Software Suite in Version 1.87 and below is affected by a remote code execution vulnerability. Manipulated PC Worx or Config+ projects could lead to a remote code execution when unallocated memory is freed because of incompletely initialized data. The attacker needs to get access to an original bus configuration file (*.bcp) to be able to manipulate data inside. After manipulation the attacker needs to exchange the original file by the manipulated one on the application programming workstation. Availability, integrity, or confidentiality of an application programming workstation might be compromised by attacks using these vulnerabilities. Automated systems in operation which were programmed with one of the above-mentioned products are not affected.
INFO
Published Date :
June 25, 2021, 7:15 p.m.
Last Modified :
Sept. 20, 2021, 6:51 p.m.
Source :
[email protected]
Remotely Exploitable :
No
Impact Score :
5.9
Exploitability Score :
1.8
Affected Products
The following products are affected by CVE-2021-33542
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-2021-33542.
| URL | Resource |
|---|---|
| https://cert.vde.com/en-us/advisories/vde-2021-020 | Third Party Advisory |
| https://www.zerodayinitiative.com/advisories/ZDI-21-782/ | Third Party Advisory VDB Entry |
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-2021-33542 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2021-33542 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. 20, 2021
Action Type Old Value New Value Changed Reference Type https://www.zerodayinitiative.com/advisories/ZDI-21-782/ No Types Assigned https://www.zerodayinitiative.com/advisories/ZDI-21-782/ Third Party Advisory, VDB Entry -
CVE Modified by [email protected]
Jul. 07, 2021
Action Type Old Value New Value Added Reference https://www.zerodayinitiative.com/advisories/ZDI-21-782/ [No Types Assigned] -
Initial Analysis by [email protected]
Jul. 02, 2021
Action Type Old Value New Value Added CVSS V2 Metadata Victim must voluntarily interact with attack mechanism Added CVSS V2 NIST (AV:N/AC:H/Au:N/C:P/I:P/A:P) Added CVSS V3.1 NIST AV:L/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H Changed Reference Type https://cert.vde.com/en-us/advisories/vde-2021-020 No Types Assigned https://cert.vde.com/en-us/advisories/vde-2021-020 Third Party Advisory Added CWE NIST CWE-824 Added CPE Configuration OR *cpe:2.3:a:phoenixcontact:config\+:*:*:*:*:*:*:*:* versions up to (including) 1.87 *cpe:2.3:a:phoenixcontact:pc_worx:*:*:*:*:*:*:*:* versions up to (including) 1.87 *cpe:2.3:a:phoenixcontact:pc_worx_express:*:*:*:*:*:*:*:* versions up to (including) 1.87
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2021-33542 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-2021-33542
weaknesses.
Exploit Prediction
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.
0.21 }} -0.04%
score
0.59658
percentile