CVE-2020-3169 : Exploit Details and Defense Strategies

A vulnerability in the CLI of Cisco FXOS Software allows an authenticated, local attacker to execute arbitrary commands with root privileges on the underlying Linux OS.

Understanding CVE-2020-3169

This CVE involves a command injection vulnerability in Cisco FXOS Software, potentially leading to unauthorized command execution.

What is CVE-2020-3169?

The vulnerability in Cisco FXOS Software enables a local attacker with authentication to run arbitrary commands on the Linux OS with root privileges by manipulating CLI commands.

The Impact of CVE-2020-3169

The vulnerability's impact is rated as medium severity with a CVSS base score of 6.7. It poses a high risk to confidentiality, integrity, and availability of affected systems.

Technical Details of CVE-2020-3169

This section delves into the specifics of the vulnerability.

Vulnerability Description

Insufficient validation of CLI command arguments in Cisco FXOS Software allows attackers to execute unauthorized commands with root access.

Affected Systems and Versions

Product: Cisco Firepower Extensible Operating System (FXOS)
Vendor: Cisco
Version: Unspecified

Exploitation Mechanism

Attackers can exploit this vulnerability by injecting malicious input into specific CLI commands, requiring valid administrator credentials.

Mitigation and Prevention

Protecting systems from CVE-2020-3169 is crucial for maintaining security.

Immediate Steps to Take

Apply vendor-provided patches promptly
Monitor network traffic for signs of exploitation
Restrict access to vulnerable systems

Long-Term Security Practices

Regularly update and patch software
Implement least privilege access controls
Conduct security training for staff

Patching and Updates

Cisco has likely released patches to address this vulnerability. Ensure all affected systems are updated with the latest security fixes.