CVE-2023-7243 Ethercat Zeek Plugin Out-of-bounds Write
An attacker can achieve arbitrary code execution by sending malicious Ethercat datagrams to the Zeek plugin, impacting industrial control system monitoring.
- 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-2023-7243?
CVE-2023-7243 is a critical memory corruption vulnerability in CISA Industrial Control Systems Network Protocol Parsers (ICSNPP) - Ethercat Plugin for Zeek, published on 1 Mar 2024. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
Industrial Control Systems Network Protocol Parsers (ICSNPP) - Ethercat Zeek Plugin versions d78dda6 and prior are vulnerable to out-of-bounds write while analyzing specific Ethercat datagrams. This could allow an attacker to cause arbitrary code execution.
Weakness: CWE-787
Which versions are affected by CVE-2023-7243?
It affects 1 product.
Products include Cisa Icsnpp-Ethercat.
How do I fix CVE-2023-7243?
No fix has been published for CVE-2023-7243 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-2023-7243 being exploited?
There is no known exploitation of CVE-2023-7243 in the wild and no public exploit code.
Other vulnerabilities in CISA Industrial Control Systems Network Protocol Parsers (ICSNPP) - Ethercat Plugin for Zeek
Sources
Also known as GHSA-wm94-vqmp-vf4v.