CVE-2023-32787 Denial of service in n/a
An attacker can cause denial of service in OPC UA server applications by triggering uncontrolled resource consumption in the Legacy Java Stack.
- 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-2023-32787?
CVE-2023-32787 is a high-severity denial of service vulnerability in n/a, published on 15 May 2023. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
The OPC UA Legacy Java Stack before 6f176f2 enables an attacker to block OPC UA server applications via uncontrolled resource consumption so that they can no longer serve client applications.
Weakness: CWE-400
Which versions are affected by CVE-2023-32787?
It affects 4 products.
Products include Opcfoundation Ua Java Legacy, Prosysopc Ua Historian, Prosysopc Ua Modbus Server, Prosysopc Ua Simulation Server.
How do I fix CVE-2023-32787?
No fix has been published for CVE-2023-32787 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-2023-32787 being exploited?
There is no known exploitation of CVE-2023-32787 in the wild and no public exploit code.
Sources
Also known as GHSA-2254-9c75-9fpv.