Cisco NX-OS Software NX-API Command Injection (cisco-sa-nxos-nxapi-cmdinject-ULukNMZ2)

high Nessus Plugin ID 158559

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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 a vulnerability in the NX-API feature that allows an authenticated, remote attacker to execute arbitrary commands with root privileges. The vulnerability is due to insufficient input validation of user supplied data that is sent to the NX-API. An attacker could exploit this vulnerability by sending a crafted HTTP POST request to the NX-API of an affected device. A successful exploit could allow the attacker to execute arbitrary commands with root privileges on the underlying operating system. Note: The NX-API feature is disabled by default.

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 CSCvz80191, CSCvz81047

Plugin Details

Severity: High

ID: 158559

File Name: cisco-sa-nxos-nxapi-cmdinject-ULukNMZ2.nasl

Version: 1.5

Type: combined

Family: CISCO

Published: 3/3/2022

Updated: 3/4/2022

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 5.9

CVSS v2

Risk Factor: High

Base Score: 9

Temporal Score: 6.7

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

CVSS Score Source: CVE-2022-20650

CVSS v3

Risk Factor: High

Base Score: 8.8

Temporal Score: 7.7

Vector: CVSS:3.0/AV:N/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: 2/23/2022

Vulnerability Publication Date: 2/23/2022

Reference Information

CVE: CVE-2022-20650

CWE: 78

CISCO-SA: cisco-sa-nxos-nxapi-cmdinject-ULukNMZ2

IAVA: 2022-A-0095

CISCO-BUG-ID: CSCvz80191, CSCvz81047

Detections

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