CVE-2020-3457 : Vulnerability Insights and Analysis

A vulnerability in the CLI of Cisco FXOS Software allows an authenticated, local attacker to inject arbitrary commands with root privileges.

Understanding CVE-2020-3457

This CVE involves a command injection vulnerability in Cisco FXOS Software.

What is CVE-2020-3457?

The vulnerability enables an attacker to execute commands on the underlying OS with root privileges by submitting crafted input to an affected command.

The Impact of CVE-2020-3457

CVSS Base Score: 6.7 (Medium Severity)
Attack Vector: Local
Attack Complexity: Low
Privileges Required: High
Confidentiality Impact: High
Integrity Impact: High
Availability Impact: High

Technical Details of CVE-2020-3457

This section provides detailed technical information about the vulnerability.

Vulnerability Description

The flaw arises from insufficient input validation of user-supplied commands, allowing attackers to execute arbitrary commands with root privileges.

Affected Systems and Versions

Affected Product: Cisco Adaptive Security Appliance (ASA) Software
Vendor: Cisco
Affected Version: Not applicable

Exploitation Mechanism

Attackers can exploit this vulnerability by authenticating to a device and submitting malicious input to the affected command.

Mitigation and Prevention

Protect your systems from CVE-2020-3457 with the following steps:

Immediate Steps to Take

Apply vendor-provided 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.
Regularly review and update access controls and input validation mechanisms.

Patching and Updates

Regularly check for security updates and apply them as soon as they are available.