CVE-2017-3812 : Vulnerability Insights and Analysis

Cisco Industrial Ethernet 2000 Switches 15.2(5.4.32i)E2 is affected by a vulnerability related to Common Industrial Protocol (CIP) functionality, potentially leading to a denial of service (DoS) attack.

Understanding CVE-2017-3812

This CVE involves a vulnerability in the implementation of CIP functionality in Cisco Industrial Ethernet 2000 Series Switches, allowing unauthenticated remote attackers to trigger a DoS condition.

What is CVE-2017-3812?

The vulnerability in Cisco Industrial Ethernet 2000 Switches 15.2(5.4.32i)E2 could be exploited remotely by unauthenticated attackers, resulting in a DoS situation due to a memory leak in the system.

The Impact of CVE-2017-3812

The exploitation of this vulnerability could lead to a denial of service (DoS) scenario, potentially disrupting the normal operation of the affected switches.

Technical Details of CVE-2017-3812

Cisco Industrial Ethernet 2000 Switches 15.2(5.4.32i)E2 is susceptible to the following:

Vulnerability Description

The vulnerability is related to the implementation of Common Industrial Protocol (CIP) functionality.

Affected Systems and Versions

Affected Version: Cisco Industrial Ethernet 2000 Switches 15.2(5.4.32i)E2
Fixed Version: Cisco Industrial Ethernet 2000 Switches 15.2(5.4.62i)E2

Exploitation Mechanism

Attackers can exploit the vulnerability remotely without authentication, causing a DoS by triggering a memory leak.

Mitigation and Prevention

To address CVE-2017-3812, consider the following steps:

Immediate Steps to Take

Apply the necessary patches provided by Cisco to mitigate the vulnerability.
Monitor network traffic for any suspicious activity that could indicate an ongoing attack.

Long-Term Security Practices

Regularly update and patch all network devices to prevent potential security vulnerabilities.
Implement network segmentation and access controls to limit the impact of potential attacks.

Patching and Updates

Ensure that all affected Cisco Industrial Ethernet 2000 Switches are updated to the fixed version 15.2(5.4.62i)E2 to eliminate the vulnerability.