CVE-2017-12330 : What You Need to Know

A vulnerability in the Command Line Interface (CLI) of Cisco NX-OS System Software allows an authenticated, local attacker to execute a command injection attack.

Understanding CVE-2017-12330

This CVE involves a vulnerability in Cisco Nexus Series Switches that could be exploited by injecting malicious command arguments into the CLI.

What is CVE-2017-12330?

The vulnerability arises from inadequate validation of command arguments in the CLI parser, enabling unauthorized access to the device's operating system.

The Impact of CVE-2017-12330

Allows an attacker to execute arbitrary commands with user privileges
Potential to access commands outside their environment in systems with multiple virtual device contexts
Affects various Cisco products running Cisco NX-OS System Software

Technical Details of CVE-2017-12330

This section provides more in-depth technical insights into the vulnerability.

Vulnerability Description

Vulnerability in CLI of Cisco NX-OS System Software
Allows an attacker to perform a command injection attack

Affected Systems and Versions

Cisco Nexus Series Switches
Versions: Cisco Nexus Series Switches

Exploitation Mechanism

Attacker injects malicious command arguments into a vulnerable CLI command
Gains unauthorized access to the device's operating system

Mitigation and Prevention

Steps to address and prevent exploitation of CVE-2017-12330.

Immediate Steps to Take

Apply vendor-supplied patches
Monitor network traffic for signs of malicious activity
Restrict network access to affected systems

Long-Term Security Practices

Regularly update and patch systems
Implement the principle of least privilege

Patching and Updates

Regularly check for security advisories and updates from Cisco
Apply patches promptly to mitigate the vulnerability