CVE-2022-24381 Denial of Service (DoS)
An attacker can cause denial of service by sending unlimited large chunks without closing the session, affecting OPC UA stack users.
- 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-2022-24381?
CVE-2022-24381 is a high-severity denial of service vulnerability in ASNeG/OpcUaStack, published on 23 Aug 2022. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
All versions of package asneg/opcuastack are vulnerable to Denial of Service (DoS) due to a missing limitation on the number of received chunks - per single session or in total for all concurrent sessions. An attacker can exploit this vulnerability by sending an unlimited number of huge chunks (e.g. 2GB each) without sending the Final closing chunk.
Weakness: CWE-770
Which versions are affected by CVE-2022-24381?
It affects 1 product.
Products include Asneg Opc Ua Stack.
How do I fix CVE-2022-24381?
No fix has been published for CVE-2022-24381 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-2022-24381 being exploited?
There is no known exploitation of CVE-2022-24381 in the wild and no public exploit code.
Sources
Also known as GHSA-j5h2-937f-wv3w.