CVE-2019-1775 : What You Need to Know

An authenticated, local attacker with valid administrator credentials could exploit a vulnerability in the CLI of Cisco NX-OS Software to execute arbitrary commands on the affected device's operating system.

Understanding CVE-2019-1775

This CVE involves a command injection vulnerability in Cisco NX-OS Software, allowing attackers to bypass argument validation and run arbitrary commands with elevated privileges.

What is CVE-2019-1775?

The vulnerability in Cisco NX-OS Software enables authenticated local attackers to execute arbitrary commands on the device's operating system by providing malicious input to specific CLI commands.

The Impact of CVE-2019-1775

If successfully exploited, this vulnerability could lead to the execution of arbitrary commands with elevated privileges on the affected device's operating system.

Technical Details of CVE-2019-1775

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

Vulnerability Description

The vulnerability allows attackers to bypass argument validation in certain CLI commands, enabling the execution of arbitrary commands on the underlying operating system.

Affected Systems and Versions

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

Exploitation Mechanism

Attack Complexity: Low
Attack Vector: Local
Privileges Required: High
User Interaction: None
Scope: Unchanged
Confidentiality Impact: High
Integrity Impact: High
Availability Impact: High

Mitigation and Prevention

Protecting systems from CVE-2019-1775 requires immediate actions and long-term security practices.

Immediate Steps to Take

Apply vendor-provided patches or updates promptly.
Monitor network traffic for signs of exploitation.
Restrict access to administrative privileges.

Long-Term Security Practices

Regularly update and patch software and firmware.
Implement network segmentation and access controls.
Conduct security training and awareness programs for staff.

Patching and Updates

Cisco has released patches to address this vulnerability. Ensure timely application of these patches to mitigate the risk of exploitation.