CVE-2019-12871 Use after free in n/a

High 8.8 Published Updated

Attackers can achieve remote code execution by tricking users into opening a manipulated project file in PHOENIX CONTACT engineering software.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Over the internet
Victim action needed
A user has to click or open something
Fix
None listed

What is CVE-2019-12871?

CVE-2019-12871 is a high-severity use after free vulnerability in n/a, published on 24 Jun 2019. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.

Official description

An issue was discovered in PHOENIX CONTACT PC Worx through 1.86, PC Worx Express through 1.86, and Config+ through 1.86. A manipulated PC Worx or Config+ project file could lead to a Use-After-Free and remote code execution. The attacker needs to get access to an original PC Worx or Config+ project file to be able to manipulate it. After manipulation, the attacker needs to exchange the original file with the manipulated one on the application programming workstation.

Weakness: CWE-416

Which versions are affected by CVE-2019-12871?

It affects 1 product.

Products include Phoenixcontact Automationworx Software Suite.

How do I fix CVE-2019-12871?

No fix has been published for CVE-2019-12871 yet. Limit exposure of the affected software until one is available.

Upgrade to the fixed version. These bugs are found with fuzzing and sanitisers and avoided by memory-safe languages. More about Use after free.

Is CVE-2019-12871 being exploited?

There is no known exploitation of CVE-2019-12871 in the wild and no public exploit code.

Sources

Also known as GHSA-534j-x2x2-hv47.

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