CVE-2020-3329 : Exploit Details and Defense Strategies

A vulnerability in role-based access control of Cisco Integrated Management Controller (IMC) Supervisor, Cisco UCS Director, and Cisco UCS Director Express for Big Data could allow a read-only authenticated, remote attacker to disable user accounts on an affected system.

Understanding CVE-2020-3329

This CVE involves a security flaw in Cisco products that could be exploited by attackers to disable user accounts.

What is CVE-2020-3329?

The vulnerability arises from incorrect allocation of the enable/disable action button under the role-based access control code on affected systems. Attackers could exploit this by updating user roles to disable them.

The Impact of CVE-2020-3329

If successfully exploited, this vulnerability could lead to the disabling of users, including administrative accounts.

Technical Details of CVE-2020-3329

This section provides more technical insights into the vulnerability.

Vulnerability Description

The vulnerability allows a read-only authenticated, remote attacker to disable user accounts by manipulating role-based access control.

Affected Systems and Versions

Product: Cisco UCS Director
Vendor: Cisco
Version: n/a

Exploitation Mechanism

Attackers can exploit this vulnerability by authenticating as a read-only user and updating the roles of other users to disable them.

Mitigation and Prevention

Steps to address and prevent the CVE-2020-3329 vulnerability.

Immediate Steps to Take

Apply vendor-provided patches or updates promptly.
Monitor system logs for any suspicious activities.
Restrict network access to the affected systems.

Long-Term Security Practices

Regularly review and update access control policies.
Conduct security training for users to recognize and report suspicious activities.
Implement multi-factor authentication for enhanced security.

Patching and Updates

Regularly check for security advisories and apply patches provided by the vendor to mitigate the vulnerability.