CVE-2019-10937 Denial of service in SIMATIC TDC CP51M1
An unauthenticated attacker can cause a Denial-of-Service condition on SIMATIC TDC CP51M1 devices by sending a specially crafted UDP packet.
- 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-2019-10937?
CVE-2019-10937 is a high-severity denial of service vulnerability in Siemens AG SIMATIC TDC CP51M1, published on 13 Sep 2019. 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 TDC CP51M1 (All versions < V1.1.7). An attacker with network access to the device could cause a Denial-of-Service condition by sending a specially crafted UDP packet. The vulnerability affects the UDP communication of the device. The security vulnerability could be exploited without authentication. No user interaction is required to exploit this security vulnerability. Successful exploitation of the security vulnerability compromises availability of the targeted system. At the time of advisory publication no public exploitation of this security vulnerability was known.
Weakness: CWE-20
Which versions are affected by CVE-2019-10937?
It affects 1 product.
Products include Siemens Simatic Tdc Cp51m1 Firmware.
How do I fix CVE-2019-10937?
No fix has been published for CVE-2019-10937 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-2019-10937 being exploited?
There is no known exploitation of CVE-2019-10937 in the wild and no public exploit code.
Sources
Also known as GHSA-9jcm-qwpx-cpq2.