Vulnerability identifier: #VU15302

Vulnerability risk: Low

CVSSv3.1: 5.3 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2018-13800

CWE-ID: CWE-352

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
SIMATIC S7-1200
Hardware solutions / Firmware

Vendor: Siemens

Description
The vulnerability allows a remote unauthenticated attacker to perform CSRF attack.

The weakness exists due to insufficient CSRF protections. A remote attacker can create a specially crafted HTML page or URL, trick the victim into visiting it, gain access to the system and perform arbitrary actions.

Mitigation
Update to version 4.2.3.

Vulnerable software versions

SIMATIC S7-1200: 4.0 - 4.1.2

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External links
http://cert-portal.siemens.com/productcert/pdf/ssa-507847.pdf

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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.