Vulnerability identifier: #VU14418

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-2018-11456

CWE-ID: CWE-20

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Siemens Automation License Manager
Server applications / SCADA systems

Vendor: Siemens

Description

The vulnerability allows a remote attacker to obtain potentially sensitive information on the target system.

The vulnerability exists due to insufficient validation of user-supplied input. A remote unauthenticated attacker can send specially crafted network packets to determine whether a network port on another remote system is accessible and do basic network scanning using the victim’s machine.

Mitigation
Update to version 5.3.4.4.

Vulnerable software versions

Siemens Automation License Manager: All versions

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External links
http://cert-portal.siemens.com/productcert/pdf/ssa-920962.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.