Vulnerability identifier: #VU48918

Vulnerability risk: Low

CVSSv3.1: 6.5 [CVSS:3.1/AV:A/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:U/RC:C]

CVE-ID: CVE-2020-7565

CWE-ID: CWE-326

Exploitation vector: Local network

Exploit availability: No

Vulnerable software:
Modicon M221
Hardware solutions / Firmware

Vendor: Schneider Electric

Description

The vulnerability allows a remote attacker to compromise the target system.

The vulnerability exists due to an inadequate encryption strength issue. A remote attacker on the local network can break the encryption key.

Mitigation
Cybersecurity Help is currently unaware of any official solution to address this vulnerability.

Vulnerable software versions

Modicon M221: All versions

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External links
http://www.se.com/ww/en/download/document/SEVD-2020-315-05/
http://us-cert.cisa.gov/ics/advisories/icsa-20-343-04

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Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the local network (LAN).

Is there known malware, which exploits this vulnerability?

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