Cisco MDS 9700 Series Multilayer Directors and Nexus 7000/7700 Series Switches Software Patch Signature Verification Vulnerability

medium Nessus Plugin ID 125776

Language:

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 Image Signature Verification feature of Cisco NX-OS Software could allow an authenticated, local attacker with administrator-level credentials to install a malicious software patch on an affected device. The vulnerability is due to improper verification of digital signatures for patch images. An attacker could exploit this vulnerability by loading an unsigned software patch on an affected device. A successful exploit could allow the attacker to boot a malicious software patch image.

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 CSCvi42248

Plugin Details

Severity: Medium

ID: 125776

File Name: cisco-sa-20190515-nxos-spsv.nasl

Version: 1.6

Type: combined

Family: CISCO

Published: 6/7/2019

Updated: 12/20/2019

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: Low

Score: 3.6

CVSS v2

Risk Factor: Low

Base Score: 2.1

Temporal Score: 1.6

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

CVSS Score Source: CVE-2019-1808

CVSS v3

Risk Factor: Medium

Base Score: 4.4

Temporal Score: 3.9

Vector: CVSS:3.0/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:N

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-2019-1808

CWE: 347

CISCO-SA: cisco-sa-20190515-nxos-spsv

IAVA: 2019-A-0180

CISCO-BUG-ID: CSCvi42248

Detections

Analytics