CVE-2022-30791 CODESYS V3: CmpBlkDrvTcp allows unauthenticated attackers to block all its available TCP connections
Unauthenticated attackers can exhaust TCP resources in CODESYS Control Runtime, blocking new connections and causing denial of service.
- 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-2022-30791?
CVE-2022-30791 is a high-severity denial of service vulnerability in Codesys Control for Iot2000 Sl, published on 11 Jul 2022. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
In CmpBlkDrvTcp of CODESYS V3 in multiple versions an uncontrolled ressource consumption allows an unauthorized attacker to block new TCP connections. Existing connections are not affected.
Weakness: CWE-400
Which versions are affected by CVE-2022-30791?
It affects 19 products.
Products include Codesys Control for Beaglebone, Codesys Control for Empc-A\/Imx6, Codesys Control for Iot2000 Sl, Codesys Control for Linux Sl, Codesys Control for Pfc100 Sl, Codesys Control for Pfc200 Sl and 13 more.
How do I fix CVE-2022-30791?
No fix has been published for CVE-2022-30791 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-2022-30791 being exploited?
There is no known exploitation of CVE-2022-30791 in the wild and no public exploit code.
Other vulnerabilities in Codesys Control for Iot2000 Sl
Sources
Also known as GHSA-cxc2-v3v8-ggcp.