Vulnerability identifier: #VU15895

Vulnerability risk: Low

CVSSv3.1: 6.7 [CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:L/E:U/RL:O/RC:C]

CVE-ID: CVE-2018-13804

CWE-ID: CWE-287

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
SIMATIC IT UA Discrete Manufacturing
Server applications / SCADA systems
SIMATIC IT LMS
Server applications / SCADA systems
SIMATIC IT Production Suite
Server applications / SCADA systems

Vendor: Siemens

Description

The vulnerability allows a remote attacker to bypass authentication on the target system.

The vulnerability exists due to improper authentication. A remote attacker can with network access to the installation can bypass the application-level authentication and conduct further attacks.

Mitigation
Install update from vendor's website.

Vulnerable software versions

SIMATIC IT UA Discrete Manufacturing: All versions

SIMATIC IT LMS: All versions

SIMATIC IT Production Suite: All versions

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External links
http://ics-cert.us-cert.gov/advisories/ICSA-18-317-07

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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.