Auth bypass in Schneider-Electric Ecostruxure Control Expert
CVE-2019-6855
Incorrect Authorization vulnerability exists in EcoStruxure Control Expert (all versions prior to 14.1 Hot Fix), Unity Pro (all versions), Modicon M340 (all versions prior to V3.20) , and Modicon M580 (all versions prior to V3.10), which could cause a bypass of the authentication process between EcoStruxure Control Expert and the M340 and M580 controllers.
Vulnerability class: Broken Access Control
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.3 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L.
EPSS exploit prediction
EPSS: 0.010 (59.9th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 60th percentile — 59.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.010 · newest: 0.010 · change: 0.000
Affected products
- Schneider-Electric Ecostruxure Control Expert — versions 14.1
- Schneider-Electric Modicon M340 Bmxp341000
- Schneider-Electric Modicon M340 Bmxp341000 Firmware
- Schneider-Electric Modicon M340 Bmxp342000
- Schneider-Electric Modicon M340 Bmxp342000 Firmware
- Schneider-Electric Modicon M340 Bmxp3420102
- Schneider-Electric Modicon M340 Bmxp3420102 Firmware
- Schneider-Electric Modicon M340 Bmxp342020
- Schneider-Electric Modicon M340 Bmxp342020 Firmware
- Schneider-Electric Modicon M340 Bmxp3420302
Weakness classification (CWE)
References
- www.se.com/ww/en/download/document/SEVD-2019-344-02/ (Vendor Advisory)
Frequently asked questions
- What is CVE-2019-6855?
- CVE-2019-6855 is a high-severity vulnerability in Schneider-Electric Ecostruxure Control Expert, classified under Incorrect Authorization. CVSS score: 7.3/10. Published 2020-01-06.
- How severe is CVE-2019-6855?
- High severity. CVSS v3 base score is 7.3 out of 10.