First published: Tue Oct 29 2019(Updated: )
A CWE-755: Improper Handling of Exceptional Conditions vulnerability exists in Modicon M580, Modicon M340, Modicon BMxCRA and 140CRA modules (all firmware versions), which could cause a Denial of Service attack on the FTP service when upgrading the firmware with a version incompatible with the application in the controller using FTP protocol.
Credit: cybersecurity@se.com
Affected Software | Affected Version | How to fix |
---|---|---|
Schneider-electric Modicon M580 Firmware | ||
Schneider-electric Modicon M580 | ||
Schneider-electric Modicon M340 Firmware | ||
Schneider-electric Modicon M340 | ||
Schneider-electric Modicon Bmxcra Firmware | ||
Schneider-electric Modicon Bmxcra | ||
Schneider-electric Modicon 140cra Firmware | ||
Schneider-electric Modicon 140cra |
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CVE-2019-6847 is a vulnerability that exists in Modicon M580, Modicon M340, Modicon BMxCRA, and 140CRA modules, which could cause a Denial of Service attack on the FTP service when upgrading the firmware with a version incompatible with the application.
The severity of CVE-2019-6847 is medium with a CVSS score of 4.9.
Modicon M580, Modicon M340, Modicon BMxCRA, and 140CRA modules are affected by CVE-2019-6847.
CVE-2019-6847 can be exploited by upgrading the firmware with a version incompatible with the application, causing a Denial of Service attack on the FTP service.
To fix CVE-2019-6847, it is recommended to update the firmware to a compatible version that addresses the vulnerability.