Vulnerability identifier: #VU22590

Vulnerability risk: Medium

CVSSv3.1: 7.9 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H/E:U/RL:U/RC:C]

CVE-ID: CVE-2019-6848

CWE-ID: CWE-248

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 perform a denial of service (DoS) attack.

The vulnerability exists due to uncaught exception vulnerability when sending specific data on the REST API of the controller/communication module. A remote authenticated administrator can cause a denial of service condition on the PLC.

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.