CVE-2022-43763 Lack of checking preconditions in APROL

High 7.5 Published Updated

Attackers can cause Denial of Service in B&R APROL by exploiting insufficient precondition checks when calling commands on the Tbase server.

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-2022-43763?

CVE-2022-43763 is a high-severity denial of service vulnerability in B&R APROL, published on 8 Feb 2023. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

Insufficient check of preconditions could lead to Denial of Service conditions when calling commands on the Tbase server of B&R APROL versions < R 4.2-07.

Weakness: CWE-252

Which versions are affected by CVE-2022-43763?

It affects 1 product.

Products include Br-Automation Industrial Automation Aprol.

How do I fix CVE-2022-43763?

No fix has been published for CVE-2022-43763 yet. Limit exposure of the affected software until one is available.

Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.

Is CVE-2022-43763 being exploited?

There is no known exploitation of CVE-2022-43763 in the wild and no public exploit code.

Sources

Also known as GHSA-x3q4-892x-xrc9.

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