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CVE-2018-13811 Weak cryptography in SIMATIC STEP 7 (TIA Portal)

Medium 5.5 Published Updated

Weak password hashing in Siemens TIA Portal allows local attackers to reconstruct passwords from project files, potentially leading to unauthorized access.

Exploited in the wild
Not known
Login needed
Any signed-in user
Attackable
Local or same network only
Victim action needed
Not needed
Fix
None listed

What is CVE-2018-13811?

CVE-2018-13811 is a medium-severity vulnerability in Siemens AG SIMATIC STEP 7 (TIA Portal), published on 13 Dec 2018. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

A vulnerability has been identified in SIMATIC STEP 7 (TIA Portal) (All Versions < V15.1). Password hashes with insufficient computational effort could allow an attacker to access to a project file and reconstruct passwords. The vulnerability could be exploited by an attacker with local access to the project file. No user interaction is required to exploit the vulnerability. The vulnerability could allow the attacker to obtain certain passwords from the project. At the time of advisory publication no public exploitation of this vulnerability was known.

Weakness: CWE-200, CWE-916

Which versions are affected by CVE-2018-13811?

It affects 1 product.

Products include Siemens Simatic Step 7 \(Tia Portal\).

How do I fix CVE-2018-13811?

No fix has been published for CVE-2018-13811 yet. Limit exposure of the affected software until one is available.

Is CVE-2018-13811 being exploited?

There is no known exploitation of CVE-2018-13811 in the wild and no public exploit code.

Sources

Also known as GHSA-h726-fjm4-p2g2.

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