CVE-2021-1514 : Exploit Details and Defense Strategies

A vulnerability in the CLI of Cisco SD-WAN Software could allow an authenticated, local attacker to inject arbitrary commands with Administrator privileges. This article provides insights into the impact, technical details, and mitigation steps for CVE-2021-1514.

Understanding CVE-2021-1514

This section delves into the details of the vulnerability affecting Cisco SD-WAN Software.

What is CVE-2021-1514?

The vulnerability in Cisco SD-WAN Software enables a local attacker to execute commands with Administrator privileges due to insufficient input validation on specific CLI commands.

The Impact of CVE-2021-1514

Exploiting this vulnerability requires low-privileged access but could result in executing commands as an Administrator, posing a significant security risk.

Technical Details of CVE-2021-1514

This section explores the technical aspects of the CVE-2021-1514 vulnerability.

Vulnerability Description

The vulnerability allows an authenticated, local attacker to inject commands with Administrator privileges by manipulating CLI commands.

Affected Systems and Versions

Cisco SD-WAN Solution is affected, with all versions susceptible to this privilege escalation vulnerability.

Exploitation Mechanism

An attacker authenticates to the device and sends crafted input to the CLI to execute commands with Administrator privileges.

Mitigation and Prevention

Discover the necessary steps to mitigate and prevent the exploitation of CVE-2021-1514.

Immediate Steps to Take

Organizations should ensure that only authorized users have access to the affected CLI commands to prevent unauthorized access.

Long-Term Security Practices

Implementing strong authentication measures and limiting low-privileged user access can enhance overall security posture.

Patching and Updates

Regularly update and patch Cisco SD-WAN Software to eliminate this vulnerability and enhance system security.