Security restrictions bypass in Siemens products - CVE-2018-4838
Published: March 9, 2018
Vulnerability identifier: #VU10888
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-2018-4838
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
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
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 upgrade or downgrade the firmware of the device, including downgrading to older versions with known vulnerabilities.
The weakness exists due to missing authentication for critical function. A remote attacker can upgrade or downgrade the firmware of the device, including downgrading to older versions with known vulnerabilities.
How to mitigate CVE-2018-4838
Install update from vendor's website.