CVE-2024-22044 Denial of service in SENTRON 3KC ATC6 Expansion Module Ethernet
An attacker on the same Modbus network can cause a denial of service by exploiting an unused HTTP service, forcing the device to reboot.
- 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-2024-22044?
CVE-2024-22044 is a high-severity denial of service vulnerability in Siemens SENTRON 3KC ATC6 Expansion Module Ethernet, published on 12 Mar 2024. 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 SENTRON 3KC ATC6 Expansion Module Ethernet (3KC9000-8TL75) (All versions). Affected devices expose an unused, unstable http service at port 80/tcp on the Modbus-TCP Ethernet. This could allow an attacker on the same Modbus network to create a denial of service condition that forces the device to reboot.
Weakness: CWE-912
Which versions are affected by CVE-2024-22044?
How do I fix CVE-2024-22044?
No fix has been published for CVE-2024-22044 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-2024-22044 being exploited?
There is no known exploitation of CVE-2024-22044 in the wild and no public exploit code.
Sources
Also known as GHSA-qh2q-v7cv-8g72.