Cisco NX-OS Software Cisco Discovery Protocol Remote Code Execution Vulnerability (cisco-sa-20200205-nxos-cdp-rce)

High Nessus Plugin ID 133604

Synopsis

The remote device is missing a vendor-supplied security patch

Description

According to its self-reported version, the Cisco NX-OS System Software is affected by a remote code execution vulnerability within the Cisco Discovery Protocol due to improper validation of input. An unauthenticated, adjacent attacker can exploit this to bypass authentication and execute arbitrary commands with root privileges.

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

Solution

Upgrade to the relevant fixed version referenced in Cisco bug ID CSCvr09175 and/or CSCvr09531.

See Also

http://www.nessus.org/u?9811503b

https://bst.cloudapps.cisco.com/bugsearch/bug/CSCvr09175

https://bst.cloudapps.cisco.com/bugsearch/bug/CSCvr09531

Plugin Details

Severity: High

ID: 133604

File Name: cisco-sa-20200205-nxos-cdp-rce.nasl

Version: 1.7

Type: combined

Family: CISCO

Published: 2020/02/10

Updated: 2020/04/01

Dependencies: 66696

Configuration: Enable paranoid mode

Risk Information

Risk Factor: High

CVSS Score Source: CVE-2020-3119

CVSS v2.0

Base Score: 8.3

Temporal Score: 6.1

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

Temporal Vector: CVSS2#E:U/RL:OF/RC:C

CVSS v3.0

Base Score: 8.8

Temporal Score: 7.7

Vector: CVSS:3.0/AV:A/AC:L/PR:N/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, Settings/ParanoidReport

Exploit Ease: No known exploits are available

Patch Publication Date: 2020/02/05

Vulnerability Publication Date: 2020/02/05

Reference Information

CVE: CVE-2020-3119

CISCO-BUG-ID: CSCvr09175, CSCvr09531

CISCO-SA: cisco-sa-20200205-nxos-cdp-rce

IAVA: 2020-A-0068