CVE-2019-1782 : Vulnerability Insights and Analysis

A weakness has been identified in the command-line interface (CLI) of Cisco FXOS Software and Cisco NX-OS Software, potentially allowing a local attacker with authenticated access to execute commands on the underlying operating system of an affected device.

Understanding CVE-2019-1782

This CVE involves a command injection vulnerability in Cisco FXOS and NX-OS Software, enabling attackers to execute arbitrary commands with elevated privileges.

What is CVE-2019-1782?

The vulnerability stems from inadequate validation of arguments in certain CLI commands, allowing attackers to input malicious commands and gain unauthorized access to the operating system.

The Impact of CVE-2019-1782

CVSS Base Score: 6.7 (Medium Severity)
Attack Vector: Local
Attack Complexity: Low
Privileges Required: High
Confidentiality Impact: High
Integrity Impact: High
Availability Impact: High

Technical Details of CVE-2019-1782

This section provides detailed technical information about the vulnerability.

Vulnerability Description

The vulnerability allows authenticated local attackers to execute arbitrary commands on affected devices' operating systems due to insufficient validation of CLI command arguments.

Affected Systems and Versions

Affected Product: Cisco NX-OS Software
Vendor: Cisco
Vulnerable Versions: Less than 8.3(1) (unspecified version)

Exploitation Mechanism

Attackers can exploit this vulnerability by providing malicious input as arguments for specific CLI commands, gaining the ability to execute arbitrary commands with elevated privileges.

Mitigation and Prevention

Protect your systems from CVE-2019-1782 with the following steps:

Immediate Steps to Take

Implement strong password policies and multi-factor authentication.
Regularly monitor and audit CLI commands for unusual activities.
Apply the latest security patches and updates from Cisco.

Long-Term Security Practices

Conduct regular security training for administrators on best practices.
Utilize network segmentation to limit the impact of potential breaches.
Employ intrusion detection and prevention systems to monitor and block malicious activities.
Stay informed about security advisories and updates from Cisco.
Consider implementing security automation tools to enhance threat detection and response.

Patching and Updates

Ensure all affected systems are updated with the latest patches and security updates provided by Cisco to mitigate the vulnerability.