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Cisco NX-OS Software Command Injection Vulnerability (CVE-2019-1791)

medium Nessus Plugin ID 128079

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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 is affected by vulnerability in the CLI of Cisco NX-OS Software which allow an authenticated, local attacker with administrator credentials to execute arbitrary commands with elevated privileges on the underlying operating system of an affected device. The vulnerability is due to insufficient validation of arguments passed to certain CLI commands. An attacker could exploit this vulnerability by including malicious input as the argument of an affected command. A successful exploit could allow the attacker to execute arbitrary commands on the underlying operating system with elevated privileges. An attacker would need valid administrator credentials to exploit this vulnerability.

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

Solution

Upgrade to the relevant fixed version referenced in Cisco bug IDs CSCvj63270, CSCvj63667, CSCvj50873, CSCvj50876, and CSCvj50889

See Also

http://www.nessus.org/u?f8cefff9

https://bst.cloudapps.cisco.com/bugsearch/bug/CSCvj63270

https://bst.cloudapps.cisco.com/bugsearch/bug/CSCvj63667

https://bst.cloudapps.cisco.com/bugsearch/bug/CSCvj50873

https://bst.cloudapps.cisco.com/bugsearch/bug/CSCvj50876

https://bst.cloudapps.cisco.com/bugsearch/bug/CSCvj50889

Plugin Details

Severity: Medium

ID: 128079

File Name: cisco-sa-20190515-nxos-cmdinj-1791.nasl

Version: 1.6

Type: combined

Family: CISCO

Published: 8/22/2019

Updated: 12/20/2019

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-2019-1791

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: 5/15/2019

Vulnerability Publication Date: 5/15/2019

Reference Information

CVE: CVE-2019-1791

BID: 108390