CVE-2018-0347 : Vulnerability Insights and Analysis

A vulnerability in the Zero Touch Provisioning (ZTP) subsystem of the Cisco SD-WAN Solution allows a local attacker to inject arbitrary commands with root privileges due to insufficient input validation.

Understanding CVE-2018-0347

This CVE identifies a security flaw in the Cisco SD-WAN Solution that can be exploited by authenticated attackers to execute commands with elevated privileges.

What is CVE-2018-0347?

The vulnerability in the ZTP subsystem of Cisco SD-WAN Solution enables authenticated local attackers to inject and execute arbitrary commands with root privileges by providing malicious input to an affected parameter.

The Impact of CVE-2018-0347

Attackers can execute commands with root privileges if the vulnerability is successfully exploited.
Affected products include vEdge 100, vEdge 1000, vEdge 2000, and vEdge 5000 Series Routers running releases older than 18.3.0.

Technical Details of CVE-2018-0347

This section provides detailed technical information about the vulnerability.

Vulnerability Description

The vulnerability allows authenticated local attackers to inject arbitrary commands with root privileges due to insufficient input validation.

Affected Systems and Versions

Products impacted: vEdge 100, vEdge 1000, vEdge 2000, and vEdge 5000 Series Routers using Cisco SD-WAN Solution versions older than Release 18.3.0.

Exploitation Mechanism

Attackers need to authenticate to the device and provide malicious input to the affected parameter to exploit the vulnerability.

Mitigation and Prevention

Protect your systems from CVE-2018-0347 with these mitigation strategies.

Immediate Steps to Take

Upgrade affected systems to Cisco SD-WAN Solution Release 18.3.0 or newer.
Monitor and restrict access to the vulnerable parameter.

Long-Term Security Practices

Implement strong authentication mechanisms to prevent unauthorized access.
Regularly update and patch systems to address security vulnerabilities.

Patching and Updates

Apply patches and updates provided by Cisco to fix the vulnerability.