CVE-2021-44221 Denial of service in SIMATIC eaSie Core Package
Remote attackers can cause denial of service in Siemens SIMATIC eaSie Core Package by sending improperly validated input to the message passing framework.
- 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-2021-44221?
CVE-2021-44221 is a high-severity denial of service vulnerability in Siemens SIMATIC eaSie Core Package, published on 12 Jul 2022. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
A vulnerability has been identified in SIMATIC eaSie Core Package (All versions < V22.00). The affected systems do not properly validate input that is sent to the underlying message passing framework. This could allow an remote attacker to trigger a denial of service of the affected system.
Weakness: CWE-20
Which versions are affected by CVE-2021-44221?
It affects 1 product.
Products include Siemens Simatic Easie Core Package.
How do I fix CVE-2021-44221?
No fix has been published for CVE-2021-44221 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-2021-44221 being exploited?
There is no known exploitation of CVE-2021-44221 in the wild and no public exploit code.
Other vulnerabilities in Siemens SIMATIC eaSie Core Package
Sources
Also known as GHSA-2q3f-cqqf-9p6p.