Vulnerability identifier: #VU48532

Vulnerability risk: High

CVSSv3.1: 7.7 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2020-7558

CWE-ID: CWE-787

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
IGSS SCADA
Server applications / SCADA systems

Vendor: Schneider Electric

Description

The vulnerability allows a remote attacker to compromise vulnerable system.

The vulnerability exists due to a boundary error when a malicious CGF (Configuration Group File) is imported to IGSS Definition. A remote attacker can trigger out-of-bounds write and execute arbitrary code on the target system.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

IGSS SCADA: 14.0.0.20247

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External links
http://ics-cert.us-cert.gov/advisories/icsa-20-324-04
http://www.se.com/ww/en/download/document/SEVD-2020-315-03/

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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.