CVE-2022-30938 Memory corruption in EN100 Ethernet module DNP3 IP variant
An attacker can crash the Siemens EN100 Ethernet module by sending crafted HTTP packets to the /txtrace endpoint, causing a 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-2022-30938?
CVE-2022-30938 is a high-severity memory corruption vulnerability in Siemens EN100 Ethernet module DNP3 IP variant, published on 12 Jul 2022. 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 EN100 Ethernet module DNP3 IP variant (All versions), EN100 Ethernet module IEC 104 variant (All versions), EN100 Ethernet module IEC 61850 variant (All versions < V4.40), EN100 Ethernet module Modbus TCP variant (All versions), EN100 Ethernet module PROFINET IO variant (All versions). Affected applications contains a memory corruption vulnerability while parsing specially crafted HTTP packets to /txtrace endpoint manupulating a specific argument. This could allow an attacker to crash the affected application leading to a denial of service condition
Which versions are affected by CVE-2022-30938?
It affects 5 products.
Products include Siemens En100 Ethernet Module Dnp3 Ip Firmware, Siemens En100 Ethernet Module Iec 104 Firmware, Siemens En100 Ethernet Module Iec 61850 Firmware, Siemens En100 Ethernet Module Modbus Tcp Firmware, Siemens En100 Ethernet Module Profinet Io Firmware.
How do I fix CVE-2022-30938?
No fix has been published for CVE-2022-30938 yet. Limit exposure of the affected software until one is available.
Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.
Is CVE-2022-30938 being exploited?
There is no known exploitation of CVE-2022-30938 in the wild and no public exploit code.
Sources
Also known as GHSA-93f5-xcv7-w96r.