Vulnerability Details : 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.
Products affected by CVE-2019-6855
- cpe:2.3:a:schneider-electric:unity_pro:*:*:*:*:*:*:*:*
- cpe:2.3:a:schneider-electric:ecostruxure_control_expert:*:*:*:*:*:*:*:*
- cpe:2.3:a:schneider-electric:ecostruxure_control_expert:14.1:-:*:*:*:*:*:*
- cpe:2.3:o:schneider-electric:modicon_m580_bmep581020_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:schneider-electric:modicon_m580_bmep582020_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:schneider-electric:modicon_m580_bmep582040_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:schneider-electric:modicon_m580_bmep582040s_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:schneider-electric:modicon_m580_bmep583020_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:schneider-electric:modicon_m580_bmep583040_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:schneider-electric:modicon_m580_bmep584020_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:schneider-electric:modicon_m580_bmep584040_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:schneider-electric:modicon_m580_bmep584040s_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:schneider-electric:modicon_m580_bmep585040_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:schneider-electric:modicon_m580_bmep586040_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:schneider-electric:modicon_m580_bmeh582040_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:schneider-electric:modicon_m580_bmeh584040_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:schneider-electric:modicon_m580_bmeh584040s_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:schneider-electric:modicon_m580_bmeh586040_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:schneider-electric:modicon_m580_bmeh586040s_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:schneider-electric:modicon_m340_bmxp341000_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:schneider-electric:modicon_m340_bmxp342020_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:schneider-electric:modicon_m340_bmxp3420302_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:schneider-electric:modicon_m340_bmxp342000_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:schneider-electric:modicon_m340_bmxp3420102_firmware:*:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2019-6855
0.09%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 38 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2019-6855
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
7.5
|
HIGH | AV:N/AC:L/Au:N/C:P/I:P/A:P |
10.0
|
6.4
|
NIST | |
|
7.3
|
HIGH | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L |
3.9
|
3.4
|
NIST |
CWE ids for CVE-2019-6855
-
The product performs an authorization check when an actor attempts to access a resource or perform an action, but it does not correctly perform the check. This allows attackers to bypass intended access restrictions.Assigned by:
- cybersecurity@se.com (Secondary)
- nvd@nist.gov (Primary)
References for CVE-2019-6855
-
https://www.se.com/ww/en/download/document/SEVD-2019-344-02/
Security Notification - Modicon Controllers, EcoStruxure™ Control Expert, and Unity Pro (V2.1) | Schneider ElectricVendor Advisory
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