Cisco NX-OS Software Unauthorized Administrator Account (cisco-sa-20180620-nxosadmin)

medium Nessus Plugin ID 138439

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Synopsis

The remote device is missing a vendor-supplied security patch (cisco-sa-20180620-nxosadmin)

Description

According to its self-reported version, a improper file handling vulnerability exists in Cisco NX-OS Software. Therefore, an authenticated, local attacker can exploit this via CLI commands to create a unathorized account with administrator privilages that does not require a password for authentication and will not show up in audit logs or records.

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

Solution

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

Plugin Details

Severity: Medium

ID: 138439

File Name: cisco-sa-20180620-nxosadmin.nasl

Version: 1.4

Type: combined

Family: CISCO

Published: 7/14/2020

Updated: 7/15/2020

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-2018-0294

CVSS v3

Risk Factor: Medium

Base Score: 6.7

Temporal Score: 5.8

Vector: CVSS:3.0/AV:L/AC:L/PR:H/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: 6/20/2018

Vulnerability Publication Date: 6/20/2018

Reference Information

CVE: CVE-2018-0294

CISCO-SA: cisco-sa-20180620-nxosadmin

CISCO-BUG-ID: CSCvd13993, CSCvd34845, CSCvd34857, CSCvd34862, CSCvd34879

Detections

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