CVE-2023-7243

Ethercat Zeek Plugin Out-of-bounds Write

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.

Remediation

Solution:

  • CISA recommends that users update Industrial Control Systems Network Protocol Parsers (ICSNPP) - Ethercat Zeek Plugin to commit 3bca34c or later https://github.com/cisagov/icsnpp-ethercat .To help reduce successful exploitation, users are encouraged to keep critical software updates and patches up to date in their system networks.

Category

9.8
CVSS
Severity: Critical
CVSS 3.1 •
EPSS 0.16%
Vendor Advisory cisa.gov
Affected: CISA Industrial Control Systems Network Protocol Parsers (ICSNPP) - Ethercat Plugin for Zeek
Published at:
Updated at:

References

Link Tags
https://www.cisa.gov/news-events/ics-advisories/icsa-24-051-02 vendor advisory us government resource

Frequently Asked Questions

What is the severity of CVE-2023-7243?
CVE-2023-7243 has been scored as a critical severity vulnerability.
How to fix CVE-2023-7243?
To fix CVE-2023-7243: CISA recommends that users update Industrial Control Systems Network Protocol Parsers (ICSNPP) - Ethercat Zeek Plugin to commit 3bca34c or later https://github.com/cisagov/icsnpp-ethercat .To help reduce successful exploitation, users are encouraged to keep critical software updates and patches up to date in their system networks.
Is CVE-2023-7243 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2023-7243 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2023-7243?
CVE-2023-7243 affects CISA Industrial Control Systems Network Protocol Parsers (ICSNPP) - Ethercat Plugin for Zeek.
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