Vulnerability identifier: #VU48963

Vulnerability risk: Low

CVSSv3.1: 6.4 [CVSS:3.1/AV:L/AC:L/PR:H/UI:R/S:C/C:H/I:H/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2020-28211

CWE-ID: CWE-285

Exploitation vector: Local

Exploit availability: No

Vulnerable software:
PLC Simulator for EcoStruxure Control Expert
Other software / Other software solutions
PLC Simulator for Unity Pro
Other software / Other software solutions
EcoStruxure Control Expert
Server applications / SCADA systems

Vendor: Schneider Electric

Description

The vulnerability allows a local user to bypass authorization checks.

The vulnerability exists due to improper authorization check. A local administrator can bypass authentication when overwriting memory using a debugger.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

PLC Simulator for EcoStruxure Control Expert: 14.1

PLC Simulator for Unity Pro: All versions

EcoStruxure Control Expert: All versions

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External links
http://www.se.com/ww/en/download/document/SEVD-2020-315-07

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Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.