CVE-2020-28400 Denial of service in Development/Evaluation Kits for PROFINET IO: DK Standard Ethernet Controller
Unauthenticated attackers can cause denial of service on Siemens industrial network devices by flooding them with DCP reset packets.
- 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-2020-28400?
CVE-2020-28400 is a high-severity denial of service vulnerability in Siemens Development/Evaluation Kits for PROFINET IO: DK Standard Ethernet Controller, published on 13 Jul 2021. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
Affected devices contain a vulnerability that allows an unauthenticated attacker to trigger a denial of service condition. The vulnerability can be triggered if a large amount of DCP reset packets are sent to the device.
Weakness: CWE-770
Which versions are affected by CVE-2020-28400?
It affects 79 products.
Products include Siemens Dk Standard Ethernet Controller Evaluation Kit Firmware, Siemens Ek-Ertec 200 Evaulation Kit Firmware, Siemens Ek-Ertec 200p Evaluation Kit Firmware, Siemens Ruggedcom Rm1224 Firmware, Siemens Scalance M-800 Firmware, Siemens Scalance S615 Firmware and 73 more.
How do I fix CVE-2020-28400?
No fix has been published for CVE-2020-28400 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-2020-28400 being exploited?
There is no known exploitation of CVE-2020-28400 in the wild and no public exploit code.
Sources
Also known as GHSA-7jh3-xvhx-2q5v.