CVE-2019-1590

published 2019-05-03

CVE-2019-1590: A vulnerability in the Transport Layer Security (TLS) certificate validation functionality of Cisco Nexus 9000 Series Application Centric Infrastructure (ACI)…

Priority P3 48 high 8.1 CVSS 3.0

AV N AC H PR N UI N S U C H I H A H

A vulnerability in the Transport Layer Security (TLS) certificate validation functionality of Cisco Nexus 9000 Series Application Centric Infrastructure (ACI) Mode Switch Software could allow an unauthenticated, remote attacker to perform insecure TLS client authentication on an affected device. The vulnerability is due to insufficient TLS client certificate validations for certificates sent between the various components of an ACI fabric. An attacker who has possession of a certificate that is trusted by the Cisco Manufacturing CA and the corresponding private key could exploit this vulnerability by presenting a valid certificate while attempting to connect to the targeted device. An exploit could allow the attacker to gain full control of all other components within the ACI fabric of an affected device.

Affected

4 ranges

Vendor	Product	Version range	Fixed in
cisco	cisco_nx-os_software_for_nexus_9000_series_fabric_switches_aci_mode	>= unspecified < 14.1(1i)	14.1(1i)
cisco	nexus_9000_series_fabric_switches_application_centric_infrastructure_mode	—	—
cisco	nx-os	—	—
cisco	nx-os	—	—

CVSS provenance

nvd v3.0 8.1 HIGH CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

nvd v2.0 6.8 MEDIUM AV:N/AC:M/Au:N/C:P/I:P/A:P

vendor_cisco 8.1 HIGH

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CWE-295