Vulnerability identifier: #VU21518

Vulnerability risk: Medium

CVSSv3.1: 6.8 [CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:H/E:U/RL:U/RC:C]

CVE-ID: CVE-2019-6816

CWE-ID: CWE-94

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Modicon Quantum
Hardware solutions / Firmware

Vendor: Schneider Electric

Description

The vulnerability allows a remote attacker to cause the firmware modification.

The vulnerability exists due to improper input validation. A remote attacker can cause an unauthorized firmware modification with possible denial of service (DoS) condition when using Modbus protocol.

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

Vulnerable software versions

Modicon Quantum: All versions

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External links
http://www.schneider-electric.com/en/download/document/SEVD-2019-134-09/

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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.