Security restrictions bypass in Siemens products - CVE-2018-4840
Published: March 9, 2018
Vulnerability identifier: #VU10887
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2018-4840
CWE-ID: CWE-306
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: Siemens
Affected software:
EN100 Ethernet module IEC 104 variant
EN100 Ethernet module DNP3 TCP variant
EN100 Ethernet module Modbus TCP variant
EN100 Ethernet module PROFINET IO variant
EN100 Ethernet module IEC 61850 variant
DIGSI 4
EN100 Ethernet module IEC 104 variant
EN100 Ethernet module DNP3 TCP variant
EN100 Ethernet module Modbus TCP variant
EN100 Ethernet module PROFINET IO variant
EN100 Ethernet module IEC 61850 variant
DIGSI 4
Detailed vulnerability description
The vulnerability allows a remote attacker to bypass security restrictions on the target system.
The weakness exists due to missing authentication for critical function. A remote attacker can upload a modified device configuration, and overwrite access authorization passwords.
The weakness exists due to missing authentication for critical function. A remote attacker can upload a modified device configuration, and overwrite access authorization passwords.
How to mitigate CVE-2018-4840
Install update from vendor's website.