CVE-2020-3504 : Exploit Details and Defense Strategies

A vulnerability in the local management (local-mgmt) CLI of Cisco UCS Manager Software could allow an authenticated, local attacker to cause a denial of service (DoS) condition on an affected device.

Understanding CVE-2020-3504

This CVE involves a vulnerability in Cisco UCS Manager Software that could lead to a denial of service attack.

What is CVE-2020-3504?

The vulnerability in the local management CLI of Cisco UCS Manager Software allows a local attacker to trigger a DoS condition by executing specific commands improperly.

The Impact of CVE-2020-3504

An authenticated attacker can cause a DoS condition on the affected device
Improper handling of CLI command parameters leads to the vulnerability
Successful exploitation can result in slowness in accessing the UCS Manager CLI and web UI
Sustained attacks may lead to a restart of internal UCS Manager processes

Technical Details of CVE-2020-3504

This section provides technical details of the vulnerability.

Vulnerability Description

The vulnerability is due to improper handling of CLI command parameters, allowing attackers to execute specific commands that disrupt internal system processes.

Affected Systems and Versions

Product: Cisco Unified Computing System (Managed)
Vendor: Cisco
Version: n/a

Exploitation Mechanism

Attackers exploit the vulnerability by executing specific commands on the local-mgmt CLI, causing internal system processes to fail and potentially leading to a DoS condition.

Mitigation and Prevention

Steps to address and prevent the CVE-2020-3504 vulnerability.

Immediate Steps to Take

Apply vendor-provided patches or updates promptly
Monitor system logs for any unusual activity
Restrict access to the local management CLI to authorized personnel

Long-Term Security Practices

Regularly update and patch software and firmware
Conduct security training for staff on identifying and responding to potential vulnerabilities
Implement network segmentation to limit the impact of potential attacks

Patching and Updates

Cisco may release patches or updates to address the vulnerability
Regularly check for security advisories and apply recommended patches promptly