CVE-2019-1770 : What You Need to Know

A weakness has been discovered in the command line interface (CLI) of Cisco NX-OS Software, allowing an authenticated attacker with local access and administrator privileges to execute arbitrary commands on the underlying Linux operating system.

Understanding CVE-2019-1770

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

What is CVE-2019-1770?

The vulnerability in Cisco NX-OS Software allows an attacker with valid administrator credentials to run commands on the Linux OS with root privileges by exploiting a flaw in CLI command argument validation.

The Impact of CVE-2019-1770

The vulnerability could lead to unauthorized execution of commands on the affected device, potentially compromising the system's integrity and confidentiality.

Technical Details of CVE-2019-1770

This section provides detailed technical information about the vulnerability.

Vulnerability Description

The vulnerability arises from inadequate validation of arguments passed to a specific CLI command, enabling an attacker to inject malicious input and execute arbitrary commands on the Linux OS.

Affected Systems and Versions

Product: Cisco NX-OS Software
Vendor: Cisco
Version: Unspecified

Exploitation Mechanism

Attack Complexity: Low
Attack Vector: Local
Privileges Required: High
User Interaction: None
Impact: Low
CVSS Base Score: 4.2 (Medium Severity)

Mitigation and Prevention

Protect your systems from CVE-2019-1770 with the following steps:

Immediate Steps to Take

Apply vendor-supplied patches or updates promptly.
Monitor Cisco's security advisories for any new information.

Long-Term Security Practices

Implement the principle of least privilege to restrict user access.
Conduct regular security assessments and audits to detect vulnerabilities.

Patching and Updates

Regularly update and patch Cisco NX-OS Software to mitigate known vulnerabilities.