Cisco Nexus 9000 Series Fabric Switches Application Centric Infrastructure Mode Insecure Fabric Authentication Vulnerability (cisco-sa-20190501-aci-insecure-fabric)

high Nessus Plugin ID 137073

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Synopsis

The remote device is missing a vendor-supplied security patch (cisco-sa-20190501-aci-insecure-fabric)

Description

According to its self-reported version, Cisco NX-OS System Software in ACI Mode is affected by an insecure authentication vulnerability in the (TLS) certificate validation due to insufficient validation. An unauthenticated, remote attacker can exploit this, via certificate manipulation, to gain root privileges.

Please see the included Cisco BIDs and Cisco Security Advisory for more information.

Solution

Upgrade to the relevant fixed version referenced in Cisco bug ID CSCvn09791

Plugin Details

Severity: High

ID: 137073

File Name: cisco-sa-20190501-aci-insecure-fabric.nasl

Version: 1.4

Type: combined

Family: CISCO

Published: 6/3/2020

Updated: 6/8/2020

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 5.9

CVSS v2

Risk Factor: Medium

Base Score: 6.8

Temporal Score: 5

Vector: CVSS2#AV:N/AC:M/Au:N/C:P/I:P/A:P

CVSS Score Source: CVE-2019-1590

CVSS v3

Risk Factor: High

Base Score: 8.1

Temporal Score: 7.1

Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

Vulnerability Information

CPE: cpe:/o:cisco:nx-os

Required KB Items: Host/Cisco/NX-OS/Version, Host/Cisco/NX-OS/Model, Host/Cisco/NX-OS/Device, Host/aci/system/chassis/summary

Exploit Ease: No known exploits are available

Patch Publication Date: 5/1/2019

Vulnerability Publication Date: 5/3/2019

Reference Information

CVE: CVE-2019-1590

BID: 108133

CISCO-SA: cisco-sa-20190501-aci-insecure-fabric

CISCO-BUG-ID: CSCvn09791

Detections

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