Cisco NX-OS Software NX-API Command Injection Vulnerability

high Nessus Plugin ID 122751

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 of Cisco NX-OS Software could allow an authenticated, remote attacker to execute arbitrary commands with root privileges. The vulnerability is due to incorrect input validation of user-supplied data by the NX-API subsystem. An attacker could exploit this vulnerability by sending malicious HTTP or HTTPS packets to the management interface of an affected system that has the NX-API feature enabled. A successful exploit could allow the attacker to perform a command-injection attack and execute arbitrary commands with root privileges.

Note: NX-API 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 advisory.

See Also

http://tools.cisco.com/security/center/viewErp.x?alertId=ERP-70757

http://www.nessus.org/u?95a3a64a

https://bst.cloudapps.cisco.com/bugsearch/bug/CSCvj17615

https://bst.cloudapps.cisco.com/bugsearch/bug/CSCvk51420

https://bst.cloudapps.cisco.com/bugsearch/bug/CSCvk51423

Plugin Details

Severity: High

ID: 122751

File Name: cisco-sa-20190306-nxos-NXAPI-cmdinj.nasl

Version: 1.8

Type: combined

Family: CISCO

Published: 3/11/2019

Updated: 4/19/2021

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-2019-1614

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: 3/6/2019

Vulnerability Publication Date: 3/6/2019

Reference Information

CVE: CVE-2019-1614

CISCO-SA: cisco-sa-20190306-nxos-NXAPI-cmdinj

IAVA: 2019-A-0159

CISCO-BUG-ID: CSCvj17615, CSCvk51420, CSCvk51423