Cisco Integrated Management Controller Supervisor RBAC access control

Summaryinfo

A vulnerability, which was classified as problematic, was found in Cisco Integrated Management Controller Supervisor, Cisco UCS Director and Cisco UCS Director Express for Big Data. This vulnerability affects unknown code of the component RBAC. Executing a manipulation can lead to access control. This vulnerability appears as CVE-2020-3329. The attack may be performed from remote. There is no available exploit. You should upgrade the affected component.

Detailsinfo

A vulnerability classified as problematic was found in Cisco Integrated Management Controller Supervisor, Cisco UCS Director and Cisco UCS Director Express for Big Data (Virtualization Software) (affected version not known). This vulnerability affects some unknown functionality of the component RBAC. The manipulation with an unknown input leads to a access control vulnerability. The CWE definition for the vulnerability is CWE-284. The product does not restrict or incorrectly restricts access to a resource from an unauthorized actor. As an impact it is known to affect integrity, and availability. CVE summarizes:

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. The vulnerability is due to incorrect allocation of the enable/disable action button under the role-based access control code on an affected system. An attacker could exploit this vulnerability by authenticating as a read-only user and then updating the roles of other users to disable them. A successful exploit could allow the attacker to disable users, including administrative users.

The weakness was presented 05/06/2020 as cisco-sa-ucsd-Ar6BAguz as confirmed advisory (Website). The advisory is shared for download at tools.cisco.com. This vulnerability was named CVE-2020-3329 since 12/12/2019. The attack can be initiated remotely. A single authentication is required for exploitation. There are neither technical details nor an exploit publicly available. The MITRE ATT&CK project declares the attack technique as T1068.

Upgrading eliminates this vulnerability.

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Productinfo

Type

• Virtualization Software

Vendor

• Cisco

Name

• Cisco UCS Director
• Cisco UCS Director Express for Big Data
• Integrated Management Controller Supervisor

License

• commercial

Website

• Vendor: https://www.cisco.com/

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