Cisco Unified Computing System Fabric Interconnect Root Privilege Escalation (cisco-sa-20190828-ucs-privescalation)

high Nessus Plugin ID 135674

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Synopsis

The remote device is missing a vendor-supplied security patch

Description

According to its self-reported version, Cisco NX-OS Software on Cisco Unified Computing System Fabric Interconnects is affected by a vulnerability in a specific CLI command within the local management (local-mgmt) context due to extraneous subcommand options. An authenticated, local attacker can exploit this, by authenticating to an affected device, entering the local-mgmt context, and issuing a specific CLI command and submitting user input, in order to gain elevated privileges as the root user on an affected device. The attacker would need to have valid user credentials for the device.

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

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

Solution

Upgrade to the relevant fixed version referenced in Cisco bug IDs CSCvm77243 and CSCvm80093.

Plugin Details

Severity: High

ID: 135674

File Name: cisco-sa-20190828-ucs-privescalation.nasl

Version: 1.6

Type: combined

Family: CISCO

Published: 4/16/2020

Updated: 10/19/2020

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 5.9

CVSS v2

Risk Factor: High

Base Score: 7.2

Temporal Score: 5.3

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

CVSS Score Source: CVE-2019-1966

CVSS v3

Risk Factor: High

Base Score: 7.8

Temporal Score: 6.8

Vector: CVSS:3.0/AV:L/AC:L/PR:L/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

Exploit Ease: No known exploits are available

Patch Publication Date: 8/28/2019

Vulnerability Publication Date: 8/28/2019

Reference Information

CVE: CVE-2019-1966

CISCO-SA: cisco-sa-20190828-ucs-privescalation

CISCO-BUG-ID: CSCvm77243, CSCvm80093

Detections

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