Vulnerability identifier: #VU26351

Vulnerability risk: Low

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

CVE-ID: CVE-2020-7479

CWE-ID: CWE-306

Exploitation vector: Local

Exploit availability: No

Vulnerable software:
IGSS SCADA
Server applications / SCADA systems

Vendor: Schneider Electric

Description

The vulnerability allows a local user to escalate privileges on the system.

The vulnerability exists due to missing authentication for critical function within the IGSSupdateservice service, which listens on TCP port 12414 by default. A local user can send remote commands to IGSS Update Service without having proper privileges and execute processes.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

IGSS SCADA: 2 - 14.0.0.19120

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External links
http://www.se.com/ww/en/download/document/SEVD-2020-070-01/
http://ics-cert.us-cert.gov/advisories/icsa-20-084-02
http://www.zerodayinitiative.com/advisories/ZDI-20-370/

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Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

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