Vulnerability identifier: #VU49568

Vulnerability risk: Medium

CVSSv3.1: 7.9 [CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C]

CVE-ID: CVE-2020-12513

CWE-ID: CWE-77

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
IO-Link Master
Hardware solutions / Firmware
IO-Link Master DR-8-PNIO-T
Hardware solutions / Firmware
IO-Link Master DR-8-PNIO-P
Hardware solutions / Firmware
IO-Link Master DR-8-PNIO
Hardware solutions / Firmware
IO-Link Master 8-PNIO-L
Hardware solutions / Firmware
IO-Link Master 8-PNIO
Hardware solutions / Firmware
IO-Link Master 4-PNIO
Hardware solutions / Firmware
IO-Link Master DR-8-EIP-T
Hardware solutions / Firmware
IO-Link Master DR-8-EIP-P
Hardware solutions / Firmware
IO-Link Master 8-EIP-L
Hardware solutions / Firmware
IO-Link Master 8-EIP
Hardware solutions / Firmware
IO-Link Master 4-EIP
Hardware solutions / Firmware

Vendor: PEPPERL+FUCHS

Description

The vulnerability allows a remote attacker to execute arbitrary commands on the target system.

The vulnerability exists due to improper input validation in the web-interface. A remote authenticated attacker can pass specially crafted data to the application and execute arbitrary commands on the target system.

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

IO-Link Master: 1.5.28

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External links
http://sec-consult.com/vulnerability-lab/advisory/multiple-vulnerabilities-in-pepperl-fuchs-io-link-master-series/

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Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote authenticated user via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability. However, proof of concept for this vulnerability is available.