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CVE-2021-27396 Memory corruption in Tecnomatix Plant Simulation

High 7.8 Published Updated

A stack-based buffer overflow in Tecnomatix Plant Simulation allows attackers to execute arbitrary code via malicious SPP files.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Local or same network only
Victim action needed
A user has to click or open something
Fix
None listed

What is CVE-2021-27396?

CVE-2021-27396 is a high-severity memory corruption vulnerability in Siemens Tecnomatix Plant Simulation, published on 12 May 2021. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.

Official description

A vulnerability has been identified in Tecnomatix Plant Simulation (All versions < V16.0.5). The PlantSimCore.dll library lacks proper validation of user-supplied data when parsing SPP files. This could result in a stack based buffer overflow, a different vulnerability than CVE-2021-27398. An attacker could leverage this vulnerability to execute code in the context of the current process. (ZDI-CAN-13279)

Weakness: CWE-121

Which versions are affected by CVE-2021-27396?

It affects 1 product.

Products include Siemens Tecnomatix Plant Simulation.

How do I fix CVE-2021-27396?

No fix has been published for CVE-2021-27396 yet. Limit exposure of the affected software until one is available.

Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.

Is CVE-2021-27396 being exploited?

There is no known exploitation of CVE-2021-27396 in the wild and no public exploit code.

All Siemens Tecnomatix Plant Simulation vulnerabilities

Sources

Also known as GHSA-r8mp-h8qj-rxw2.

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