CVE-2018-11456 Server-side request forgery in Automation License Manager 5

Medium 5.8 Published Updated

An attacker can use the vulnerable Siemens Automation License Manager to scan network ports on remote systems, bypassing network restrictions.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Over the internet
Victim action needed
Not needed
Fix
None listed

What is CVE-2018-11456?

CVE-2018-11456 is a medium-severity server-side request forgery vulnerability in Siemens AG Automation License Manager 5, published on 7 Aug 2018. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

A vulnerability has been identified in Automation License Manager 5 (All versions < 5.3.4.4). An attacker with network access to the device could send specially crafted network packets to determine whether or not a network port on another remote system is accessible or not. This allows the attacker to do basic network scanning using the victims machine. Successful exploitation requires a network connection to the affected device. The attacker does not need privileges, no user interaction is required. The impact is limited to determining whether or not a port on a target system is accessible by the affected device.

Weakness: CWE-284

Which versions are affected by CVE-2018-11456?

It affects 1 product.

Products include Siemens Automation License Manager.

How do I fix CVE-2018-11456?

No fix has been published for CVE-2018-11456 yet. Limit exposure of the affected software until one is available.

Upgrade, and send outbound requests through an allow-list that blocks internal addresses. More about Server-side request forgery.

Is CVE-2018-11456 being exploited?

There is no known exploitation of CVE-2018-11456 in the wild and no public exploit code.

Sources

Also known as GHSA-qwxx-q8h8-xx3q.

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