Information Exposure Vulnerability in Schneider Electric Modicon PLCs
CVE-2018-7812

7.5HIGH

Key Information:

Vendor

Schneider Electric
Status
Embedded Web Servers In All Modicon M340, Premium, Quantum Plcs And Bmxnor0200
Vendor
CVE Published:
17 December 2018

What is CVE-2018-7812?

An information exposure vulnerability exists in the embedded web servers of Schneider Electric's Modicon M340, Premium, Quantum PLCs, and BMXNOR0200 devices. This vulnerability allows the web server to return inconsistent responses, potentially revealing sensitive security-related information about the operational state of the product. For instance, by analyzing the responses, it could be determined whether a specific operation was executed successfully or not, leading to risks of unauthorized access or manipulation of critical system functions.

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Affected Version(s)

Embedded Web Servers in all Modicon M340, Premium, Quantum PLCs and BMXNOR0200 Embedded Web Servers in all Modicon M340, Premium, Quantum PLCs and BMXNOR0200

References

https://github.com/SadFud/Exploits/tree/master/Real%20Wor...
x_refsource_MISC
https://www.schneider-electric.com/en/download/document/S...
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CVSS V3.1

Score:
7.5
Severity:
HIGH
Confidentiality:
High
Integrity:
None
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

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