Vulnerability Details : CVE-2018-7811
Potential exploit
An Unverified Password Change vulnerability exists in the embedded web servers in all Modicon M340, Premium, Quantum PLCs and BMXNOR0200 which could allow an unauthenticated remote user to access the change password function of the web server
Products affected by CVE-2018-7811
- cpe:2.3:o:schneider-electric:modicom_m340_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:schneider-electric:modicom_premium_firmware:*:*:*:*:*:*:*:*When used together with: Schneider-electric » Modicom Premium
- cpe:2.3:o:schneider-electric:modicom_quantum_firmware:*:*:*:*:*:*:*:*When used together with: Schneider-electric » Modicom Quantum
- cpe:2.3:o:schneider-electric:modicom_bmxnor0200h_firmware:*:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2018-7811
1.92%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 82 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2018-7811
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
5.0
|
MEDIUM | AV:N/AC:L/Au:N/C:N/I:P/A:N |
10.0
|
2.9
|
NIST | |
|
9.8
|
CRITICAL | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
3.9
|
5.9
|
NIST |
CWE ids for CVE-2018-7811
-
The product contains a mechanism for users to recover or change their passwords without knowing the original password, but the mechanism is weak.Assigned by: nvd@nist.gov (Primary)
References for CVE-2018-7811
-
https://www.schneider-electric.com/en/download/document/SEVD-2018-327-01/
Security Notification - Embedded Web Servers for Modicon V2.2 | Schneider ElectricVendor Advisory
-
https://www.tenable.com/security/research/tra-2018-38
[R1] Multiple Schneider Electric Modicon Quantum Vulnerabilities - Research Advisory | Tenable®Exploit;Third Party Advisory
-
https://security.cse.iitk.ac.in/responsible-disclosure
Responsible Disclosure | Indian Institute of Technology, Kanpur
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