Schneider Electric Modicon M580 Modbus denial of service [CVE-2018-7856]

A vulnerability was found in Schneider Electric Modicon M580, Modicon M340, Modicon Quantum and Modicon Premium (unknown version). It has been rated as problematic. This issue affects some processing of the component Modbus. The manipulation with an unknown input leads to a denial of service vulnerability. Using CWE to declare the problem leads to CWE-404. Impacted is availability. The summary by CVE is:

A CWE-248: Uncaught Exception vulnerability exists in all versions of the Modicon M580, Modicon M340, Modicon Quantum, and Modicon Premium which could cause a possible denial of Service when writing invalid memory blocks to the controller over Modbus.

The weakness was shared 05/22/2019. The identification of this vulnerability is CVE-2018-7856 since 03/08/2018. The technical details are unknown and an exploit is not publicly available.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

The issues 135355, 135356, 135357 and 135358 are related to this entry.

Vendor

Name

VulDB Meta Base Score: 3.5
VulDB Meta Temp Score: 3.5

VulDB Base Score: ≈3.5
VulDB Temp Score: ≈3.5
VulDB Vector: ?
VulDB Reliability: ?

VulDB Base Score: ?
VulDB Temp Score: ?
VulDB Reliability: ?
Class: Denial of service (CWE-404)
Local: Yes
Remote: No

Availability: ?
Status: Not defined

Price Prediction: ?
Current Price Estimation: ?

Threat Intelligenceinfoedit

Threat: ?
Adversaries: ?
Geopolitics: ?
Economy: ?
Predictions: ?
Remediation: ?Recommended: no mitigation known
0-Day Time: ?03/08/2018 CVE assigned
05/22/2019 +440 days Advisory disclosed
05/23/2019 +1 days VulDB entry created
05/23/2019 +0 days VulDB last updateCVE: CVE-2018-7856 (?)
See also: ?Created: 05/23/2019 11:01 AM
Complete: ?

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