Cisco NX-OS Software NX-API Denial of Service Vulnerability (CVE-2019-1968)

high Nessus Plugin ID 128550

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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 denial of service vulnerability in the NX-API of Cisco NX-OS Software due to incorrect validation of HTTP requests. An unauthenticated, remote attacker could exploit this, by sending a crafted HTTP request to the NX-API, to cause a denial of service condition in the NX-API service.

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 CSCvn2650, CSCvn31273 and CSCvn57900

Plugin Details

Severity: High

ID: 128550

File Name: cisco-sa-20190828-nxos-api-dos.nasl

Version: 1.8

Type: combined

Family: CISCO

Published: 9/6/2019

Updated: 4/19/2021

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: Low

Score: 3.6

CVSS v2

Risk Factor: Medium

Base Score: 5

Temporal Score: 3.7

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

CVSS Score Source: CVE-2019-1968

CVSS v3

Risk Factor: High

Base Score: 7.5

Temporal Score: 6.5

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/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-2019-1968

CWE: 77

CISCO-SA: cisco-sa-20190828-nxos-api-dos

IAVA: 2019-A-0317

CISCO-BUG-ID: CSCvn26502, CSCvn31273, CSCvn57900

Detections

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