Vulnerability · Published Jun 25, 2021 · Assigned by CERTVDE
CVE-2021-33542Phoenix Contact: Automation Worx Software Suite affected by Remote Code Execution (RCE) vulnerability
High 7.8
In plain English
A high-severity security flaw in Automation Worx Software Suite from Phoenix Contact. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 1.8% (higher than 78% of all known vulnerabilities).
Official 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.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Phoenix Contact | Automation Worx Software Suite | PC Worx – through 1.87PC Worx Express – through 1.87Config+ – through 1.87 |
Weakness: CWE-824 · Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
References
- https://cert.vde.com/en-us/advisories/vde-2021-020 x_refsource_CONFIRM
- https://www.zerodayinitiative.com/advisories/ZDI-21-782/ x_refsource_MISC