Vulnerability identifier: #VU49566

Vulnerability risk: Low

CVSSv3.1: 5.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N/E:P/RL:O/RC:C]

CVE-ID: CVE-2020-12511

CWE-ID: CWE-352

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 perform cross-site request forgery attacks.

The vulnerability exists due to insufficient validation of the HTTP request origin in the web interface. A remote attacker can trick the victim to visit a specially crafted web page and perform arbitrary actions on behalf of the victim on the vulnerable website.

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 non-authenticated attacker 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.