Vulnerability identifier: #VU53989

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-2021-22759

CWE-ID: CWE-416

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
IGSS Definition
Server applications / Other server solutions

Vendor: Schneider Electric

Description

The vulnerability allows a remote attacker to compromise vulnerable system.

The vulnerability exists due to a use-after-free error. A remote attacker can trick a victim to open a specially crafted CGF file and execute arbitrary code on the system.

Successful exploitation of the vulnerability may allow an attacker to compromise vulnerable system.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

IGSS Definition: 15.0.0.21140

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External links
http://ics-cert.us-cert.gov/advisories/icsa-21-159-04
http://download.schneider-electric.com/files?p_Doc_Ref=SEVD-2021-159-01

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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.