CVE-2019-1790 : What You Need to Know

An authenticated and local attacker with valid administrator credentials could potentially execute arbitrary commands on the underlying operating system of a device impacted by a vulnerability in Cisco NX-OS Software's CLI.

Understanding CVE-2019-1790

This CVE involves a command injection vulnerability in Cisco NX-OS Software.

What is CVE-2019-1790?

An attacker with valid admin credentials can execute arbitrary commands on the OS due to insufficient validation of CLI command arguments.
Malicious input in affected commands can lead to unauthorized command execution with elevated privileges.

The Impact of CVE-2019-1790

CVSS Score: 6.7 (Medium Severity)
Attack Vector: Local
Confidentiality, Integrity, and Availability Impact: High
Privileges Required: High
No known public exploits or malicious use reported.

Technical Details of CVE-2019-1790

This section provides more technical insights into the vulnerability.

Vulnerability Description

Insufficient validation of CLI command arguments in Cisco NX-OS Software.

Affected Systems and Versions

Affected Product: Cisco NX-OS Software
Versions Affected: Less than 8.3(1)

Exploitation Mechanism

Attacker needs valid admin credentials to inject malicious input into affected CLI commands.

Mitigation and Prevention

Steps to address and prevent exploitation of CVE-2019-1790.

Immediate Steps to Take

Ensure all system administrators are aware of the vulnerability.
Monitor for any unusual CLI command executions.

Long-Term Security Practices

Regularly update and patch Cisco NX-OS Software.
Implement least privilege access controls.

Patching and Updates

Apply the latest security patches provided by Cisco for NX-OS Software.