CVE-2023-7243: Ethercat Zeek Plugin Out-of-bounds Write

Q: What is the severity of CVE-2023-7243?

CVE-2023-7243 is considered a critical vulnerability due to its potential for arbitrary code execution.

Q: How do I fix CVE-2023-7243?

To fix CVE-2023-7243, update to a version of the ICSNPP - Ethercat Zeek Plugin that is newer than d78dda6.

Q: What types of attacks can exploit CVE-2023-7243?

CVE-2023-7243 can be exploited to perform remote code execution attacks through specially crafted Ethercat datagrams.

Q: What systems are affected by CVE-2023-7243?

CVE-2023-7243 affects systems utilizing the ICSNPP - Ethercat Zeek Plugin version d78dda6 and earlier.

Q: Who reported CVE-2023-7243?

CVE-2023-7243 was reported by CISA in an advisory regarding vulnerabilities in industrial control systems.

Published Mar 1, 2024

Updated

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.

Affected Software

1 affected component

CISA Icsnpp-ethercat Zeek<=d78dda6

Remediation

Information

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.

Event History

Mar 1, 2024

CVE Published

via MITRE·08:16 PM

Data Sourced

via MITRE·08:16 PM

RemedyDescriptionSeverityWeakness

Data Sourced

via NVD·09:15 PM

DescriptionSeverityWeakness

Frequently Asked Questions

What is the severity of CVE-2023-7243?

CVE-2023-7243 is considered a critical vulnerability due to its potential for arbitrary code execution.

How do I fix CVE-2023-7243?