Uncaught Exception in Schneider Electric products - CVE-2019-6844

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Main Vulnerability Database Vulnerabilities #VU22583

Uncaught Exception in Schneider Electric products - CVE-2019-6844

Published: November 7, 2019


Vulnerability identifier: #VU22583
CSH Severity: Medium
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2019-6844
CWE-ID: CWE-248
Exploitation vector: Remote access
Exploit availability: No public exploit available
Vendor: Schneider Electric
Affected software:
Modicon M340
Modicon M580
Modicon BMxCRA modules
Modicon 140CRA modules

Detailed vulnerability description

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to uncaught exception vulnerability when upgrading the controller with a firmware package containing an invalid web server image using FTP protocol. A remote authenticated administrator can cause a denial of service condition on the PLC.

How to mitigate CVE-2019-6844

Cybersecurity Help is currently unaware of any official solution to address this vulnerability.

Sources