CVE-2021-33542

Published Jun 25, 2021

Last updated 3 years ago

Overview

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.
Source
info@cert.vde.com
NVD status
Analyzed

Risk scores

CVSS 3.1

Type
Primary
Base score
7
Impact score
5.9
Exploitability score
1
Vector string
CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H
Severity
HIGH

CVSS 2.0

Type
Primary
Base score
5.1
Impact score
6.4
Exploitability score
4.9
Vector string
AV:N/AC:H/Au:N/C:P/I:P/A:P

Weaknesses

info@cert.vde.com
CWE-824
nvd@nist.gov
CWE-824

Social media

Hype score
Not currently trending

Configurations