CVE-2023-50221 Deserialization in Ignition

High 8.8 Published Updated

Remote attackers can execute arbitrary code by tricking users into connecting to a malicious server, exploiting unsafe deserialization in Ignition.

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-2023-50221?

CVE-2023-50221 is a high-severity unsafe deserialization vulnerability in Inductive Automation Ignition, published on 3 May 2024. 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

Inductive Automation Ignition ResponseParser SerializedResponse Deserialization of Untrusted Data Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of Inductive Automation Ignition. User interaction is required to exploit this vulnerability in that the target must connect to a malicious server.

The specific flaw exists within the ResponseParser method. The issue results from the lack of proper validation of user-supplied data, which can result in deserialization of untrusted data. An attacker can leverage this vulnerability to execute code in the context of the current user. Was ZDI-CAN-21926.

Weakness: CWE-502

Which versions are affected by CVE-2023-50221?

It affects 1 product.

Products include Inductiveautomation Ignition.

How do I fix CVE-2023-50221?

No fix has been published for CVE-2023-50221 yet. Limit exposure of the affected software until one is available.

Upgrade, and only deserialise data from trusted sources or with an allow-list of types. More about Unsafe deserialization.

Is CVE-2023-50221 being exploited?

There is no known exploitation of CVE-2023-50221 in the wild and no public exploit code.

Sources

Also known as GHSA-84p4-pmqg-8955.

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