CVE-2020-20741 describes an Incorrect Access Control vulnerability in Beckhoff Automation GmbH & Co. KG CX9020 devices running firmware version CX9020_CB3011_WEC7_HPS_v602_TC31_B4016.6. This flaw allows remote attackers to bypass authentication through the "CE Remote Display Tool" because the device fails to close incoming connections even when incorrect credentials are provided. This vulnerability is rated as Critical with a CVSS score of 9.8, indicating a severe risk. It can be exploited remotely over the network with low attack complexity and no user interaction, potentially leading to complete compromise of confidentiality, integrity, and availability of the affected system. Currently, there is no evidence of active exploitation, and no public exploit code is available in Metasploit, Nuclei, or ExploitDB. However, there is significant community discussion surrounding this CVE, with mentions of a Tenable NASL plugin and a JSON file on GitHub, suggesting active interest in its detection and analysis.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
6.02CPE matchmatch criteria | cpe:2.3:h:beckhoff:cx9020:6.02:build_4016.6:*:*:*:*:*:* |
CVSS version used by this source: 3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.3 Bluesky, 0.3 Mastodon, and 2.4 GitHub mentions.
No media coverage found for this CVE.
The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.
Remediation records are not available for this CVE.