CVE-2020-20741 — CRITICAL (9.8)

Vulnerability Description

Incorrect Access Control in Beckhoff Automation GmbH & Co. KG CX9020 with firmware version CX9020_CB3011_WEC7_HPS_v602_TC31_B4016.6 allows remote attackers to bypass authentication via the "CE Remote Display Tool" as it does not close the incoming connection on the Windows CE side if the credentials are incorrect.

CVSS Score

9.8

CRITICAL

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality

HIGH

Integrity

HIGH

Availability

HIGH

Affected Products

Vendor	Product	Versions
Beckhoff	Cx9020	6.02

References

https://download.beckhoff.com/download/Document/product-security/Advisories/adviMitigationPatchVendor Advisory
https://download.beckhoff.com/download/Document/product-security/Advisories/adviMitigationPatchVendor Advisory

FAQ

What is CVE-2020-20741?

CVE-2020-20741 is a vulnerability with a CVSS score of 9.8 (CRITICAL). Incorrect Access Control in Beckhoff Automation GmbH & Co. KG CX9020 with firmware version CX9020_CB3011_WEC7_HPS_v602_TC31_B4016.6 allows remote attackers to bypass authentication via the "CE Remote ...

How severe is CVE-2020-20741?

CVE-2020-20741 has been rated CRITICAL with a CVSS base score of 9.8/10. This is considered a critical vulnerability requiring immediate attention.

Is there a patch for CVE-2020-20741?

Check the references section above for vendor advisories and patch information. Affected products include: Beckhoff Cx9020.