National Vulnerability Database

National Vulnerability Database

National Vulnerability
Database

CVE-2018-7789 Detail

Current Description

An Improper Check for Unusual or Exceptional Conditions vulnerability exists in Schneider Electric's Modicon M221 product (all references, all versions prior to firmware V1.6.2.0). The vulnerability allows unauthorized users to remotely reboot Modicon M221 using crafted programing protocol frames.

Source:  MITRE
Description Last Modified:  08/29/2018
View Analysis Description

Impact

CVSS v3.0 Severity and Metrics:

Base Score: 7.5 HIGH
Vector: AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H (V3 legend)
Impact Score: 3.6
Exploitability Score: 3.9


Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): None
Scope (S): Unchanged
Confidentiality (C): None
Integrity (I): None
Availability (A): High

CVSS v2.0 Severity and Metrics:

Base Score: 7.8 HIGH
Vector: (AV:N/AC:L/Au:N/C:N/I:N/A:C) (V2 legend)
Impact Subscore: 6.9
Exploitability Subscore: 10.0


Access Vector (AV): Network
Access Complexity (AC): Low
Authentication (AU): None
Confidentiality (C): None
Integrity (I): None
Availability (A): Complete
Additional Information:
Allows disruption of service

References to Advisories, Solutions, and Tools

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Hyperlink Resource
http://www.securityfocus.com/bid/105171 Third Party Advisory VDB Entry
https://ics-cert.us-cert.gov/advisories/ICSA-18-240-02 Mitigation Third Party Advisory US Government Resource
https://www.schneider-electric.com/en/download/document/SEVD-2018-233-01/ Mitigation Vendor Advisory

Technical Details

Vulnerability Type (View All)

  • Improper Check for Unusual or Exceptional Conditions (CWE-754)

Change History

3 change records found - show changes

Quick Info

CVE Dictionary Entry:
CVE-2018-7789
NVD Published Date:
08/29/2018
NVD Last Modified:
11/07/2018