What is CVE-2019-6854?

CVE-2019-6854 is a high-severity vulnerability in Schneider-Electric Clearscada, classified under Improper Authentication. CVSS score: 7.8/10. Published 2020-01-06.

How severe is CVE-2019-6854?

High severity. CVSS v3 base score is 7.8 out of 10.

Auth bypass in Schneider-Electric Clearscada

CVE-2019-6854

A CWE-287: Improper Authentication vulnerability exists in a folder within EcoStruxure Geo SCADA Expert (ClearSCADA) -with initial releases before 1 January 2019- which could cause a low privilege user to delete or modify database, setting or certificate files. Those users must have access to the file system of that operating system to exploit this vulnerability. Affected versions in current support includes ClearSCADA 2017 R3, ClearSCADA 2017 R2, and ClearSCADA 2017.

Vulnerability class: Broken Authentication

EPSS: 0.002 (6.3th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.8 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

Affected products

Schneider-electric Clearscada — versions 2017
N/a Ecostruxure Geo Scada Expert (Clearscada) With Initial Releases Before 1 January 2019 (See Notification For More Details) — versions EcoStruxure Geo SCADA Expert (ClearSCADA) with initial releases before 1 January 2019 (see notification for more details)

Weakness classification (CWE)

CWE-287 — Improper Authentication

References

cybersecurity@se.com (x_refsource_MISC, Vendor Advisory)

Frequently asked questions

What is CVE-2019-6854?: CVE-2019-6854 is a high-severity vulnerability in Schneider-Electric Clearscada, classified under Improper Authentication. CVSS score: 7.8/10. Published 2020-01-06.
How severe is CVE-2019-6854?: High severity. CVSS v3 base score is 7.8 out of 10.