Vulnerability identifier: #VU16611

Vulnerability risk: Low

CVSSv3.1: 4.6 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2018-20026

CWE-ID: CWE-923

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
CODESYS Simulation Runtime
Client/Desktop applications / Other client software
CODESYS Development System
Client/Desktop applications / Other client software
CODESYS PLCHandler SDK
Client/Desktop applications / Other client software
CODESYS OPC Server
Client/Desktop applications / Other client software
CODESYS HMI
Client/Desktop applications / Other client software
CODESYS Gateway
Client/Desktop applications / Other client software
CODESYS Safety SIL2
Client/Desktop applications / Other client software
CODESYS Remote Target Visu Toolkit
Client/Desktop applications / Other client software
CODESYS Embedded Target Visu Toolkit
Client/Desktop applications / Other client software
CODESYS Control Runtime System Toolkit
Client/Desktop applications / Other client software
CODESYS Control Win
Client/Desktop applications / Other client software
CODESYS Control RTE
Client/Desktop applications / Other client software
CODESYS Control for Raspberry Pi
Client/Desktop applications / Other client software
CODESYS Control for PFC200
Client/Desktop applications / Other client software
CODESYS Control for PFC100
Client/Desktop applications / Other client software
CODESYS Control for Linux
Client/Desktop applications / Other client software
CODESYS Control for IOT2000
Client/Desktop applications / Other client software
CODESYS Control for emPC-A/iMX6
Client/Desktop applications / Other client software
CODESYS Control for BeagleBone
Client/Desktop applications / Other client software

Vendor: CODESYS

Description

The vulnerability allows a remote attacker to conduct spoofing attack on the target system.

The vulnerability exists due to the application does not properly restrict communication channels. A remote unauthenticated attacker can spoof the source of communication packets.

Mitigation
Install update from vendor's website.

Vulnerable software versions

CODESYS Simulation Runtime: All versions

CODESYS Development System: All versions

CODESYS PLCHandler SDK: All versions

CODESYS OPC Server: All versions

CODESYS HMI: All versions

CODESYS Gateway: All versions

CODESYS Safety SIL2: All versions

CODESYS Remote Target Visu Toolkit: All versions

CODESYS Embedded Target Visu Toolkit: All versions

CODESYS Control Runtime System Toolkit: All versions

CODESYS Control Win: All versions

CODESYS Control RTE: All versions

CODESYS Control for Raspberry Pi: All versions

CODESYS Control for PFC200: All versions

CODESYS Control for PFC100: All versions

CODESYS Control for Linux: All versions

CODESYS Control for IOT2000: All versions

CODESYS Control for emPC-A/iMX6: All versions

CODESYS Control for BeagleBone: All versions

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External links
http://www.codesys.com/security/security-reports.html

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Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.