Improper access control in Schneider Electric products - CVE-2018-7847
Published: October 3, 2019
Vulnerability identifier: #VU21499
CSH Severity: High
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber
CVE-ID: CVE-2018-7847
CWE-ID: CWE-284
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: Schneider Electric
Affected software:
Modicon Quantum
Modicon Premium
Modicon M340
Modicon M580
Modicon Quantum
Modicon Premium
Modicon M340
Modicon M580
Detailed vulnerability description
The vulnerability allows a remote attacker to gain unauthorized access to otherwise restricted functionality.
The vulnerability exists due to improper access restrictions. A remote attacker can overwrite configuration settings of the controller over Modbus and cause a denial of service condition or potential code execution on the target system.
How to mitigate CVE-2018-7847
Install updates from vendor's website.