CVE-2023-2262 : Vulnerability Insights and Analysis

This CVE record pertains to a buffer overflow vulnerability affecting Rockwell Automation select 1756-EN* communication devices that could potentially lead to remote code execution. The vulnerability requires a threat actor to send a maliciously crafted CIP request to the device.

Understanding CVE-2023-2262

This section delves into a deeper understanding of the CVE-2023-2262 vulnerability.

What is CVE-2023-2262?

CVE-2023-2262 is a buffer overflow vulnerability present in Rockwell Automation select 1756-EN* communication devices. Exploiting this vulnerability could allow threat actors to execute remote code by sending a specifically crafted CIP request to the targeted device.

The Impact of CVE-2023-2262

The impact of CVE-2023-2262, categorized under CAPEC-100 Overflow Buffers, poses a critical threat with high impacts on confidentiality, integrity, and availability, scoring 9.8 on the CVSS severity scale.

Technical Details of CVE-2023-2262

This section outlines the technical details of the CVE-2023-2262 vulnerability.

Vulnerability Description

The vulnerability involves a buffer overflow within Rockwell Automation select 1756-EN* communication devices, allowing threat actors to potentially execute remote code by exploiting this flaw.

Affected Systems and Versions

Rockwell Automation products including 1756-EN2T, 1756-EN2TK, 1756-EN2TXT, 1756-EN2TP, 1756-EN2TPK, 1756-EN2TPXT, 1756-EN2TR, 1756-EN2TRK, 1756-EN2TRXT, 1756-EN2F, 1756-EN2FK, 1756-EN2TR, 1756-EN3TR, and 1756-EN3TRK are impacted by this vulnerability.

Exploitation Mechanism

To exploit CVE-2023-2262, threat actors must send a maliciously crafted CIP request to the affected Rockwell Automation communication devices.

Mitigation and Prevention

This section focuses on measures to mitigate and prevent the exploitation of CVE-2023-2262.

Immediate Steps to Take

Update firmware of EN2* ControlLogix communications modules.
Restrict traffic to the SMTP port (25) if not required.
Disable the email object for customers using EN2/EN3 versions 10.x and higher if not needed.

Long-Term Security Practices

Adhering to recommended security guidelines and regularly updating firmware can enhance security posture and reduce the risk associated with such vulnerabilities.

Patching and Updates

Users are advised to refer to the EtherNet/IP Network Devices User Manual for instructions on disabling the email object and follow Rockwell Automation's security guidelines outlined in QA43240.

By following these mitigation strategies, organizations can safeguard their systems against the potential risks posed by CVE-2023-2262.