CVE-2020-27295 Denial of service in OPC UA Tunneller
An attacker can cause a denial-of-service condition in the OPC UA Tunneller through uncontrolled resource consumption.
- 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-2020-27295?
CVE-2020-27295 is a high-severity denial of service vulnerability in OPC UA Tunneller, published on 26 Jan 2021. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
The affected product has uncontrolled resource consumption issues, which may allow an attacker to cause a denial-of-service condition on the OPC UA Tunneller (versions prior to 6.3.0.8233).
Weakness: CWE-400
Which versions are affected by CVE-2020-27295?
It affects 1 product.
Products include Honeywell Opc Ua Tunneller.
How do I fix CVE-2020-27295?
No fix has been published for CVE-2020-27295 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-2020-27295 being exploited?
There is no known exploitation of CVE-2020-27295 in the wild and no public exploit code.
Other vulnerabilities in OPC UA Tunneller
Sources
Also known as GHSA-gc6c-6m8m-8g6g.