Vulnerability identifier: #VU22591

Vulnerability risk: Medium

CVSSv3.1: 6.9 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N/E:U/RL:U/RC:C]

CVE-ID: CVE-2019-6849

CWE-ID: CWE-200

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Modicon M580
Hardware solutions / Firmware
Modicon BMENOC0311
Hardware solutions / Firmware
Modicon BMENOC0321
Hardware solutions / Firmware

Vendor: Schneider Electric

Description

The vulnerability allows a remote attacker to gain access to potentially sensitive information.

The vulnerability exists due to improper input validation when using specific Modbus services provided by the REST API of the controller/communication module. A remote attacker can gain unauthorized access to sensitive information on the system.

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

Vulnerable software versions

Modicon M580: All versions

Modicon BMENOC0311: All versions

Modicon BMENOC0321: All versions

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External links
http://www.schneider-electric.com/ww/en/download/document/SEVD-2019-281-04

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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 Internet.

Is there known malware, which exploits this vulnerability?

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