Cisco IOS XE SD-WAN Software Authentication Bypass (cisco-sa-auth-b-NzwhJHH7)

medium Nessus Plugin ID 139517

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Synopsis

The remote device is missing a vendor-supplied security patch

Description

According to its self-reported version, Cisco IOS XE SD-WAN Software is affected by a authentication bypass vulnerability. The vulnerability exists because the affected software has insufficient authentication mechanisms for certain commands. An unauthenticated, physical attacker can exploit this vulnerability by stopping the boot initialization of an affected device. A successful exploit could allow the attacker to bypass authentication and gain unrestricted access to the root shell of the affected device.

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 CSCvk38480

Plugin Details

Severity: Medium

ID: 139517

File Name: cisco-sa-auth-b-NzwhJHH7.nasl

Version: 1.11

Type: combined

Family: CISCO

Published: 8/12/2020

Updated: 5/3/2024

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 5.9

CVSS v2

Risk Factor: High

Base Score: 7.2

Temporal Score: 5.3

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

CVSS Score Source: CVE-2020-3216

CVSS v3

Risk Factor: Medium

Base Score: 6.8

Temporal Score: 5.9

Vector: CVSS:3.0/AV:P/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:ios_xe

Required KB Items: Host/Cisco/SDWAN/Version

Exploit Ease: No known exploits are available

Patch Publication Date: 6/3/2020

Vulnerability Publication Date: 6/3/2020

Reference Information

CVE: CVE-2020-3216

CWE: 287

CISCO-SA: cisco-sa-auth-b-NzwhJHH7

IAVA: 2020-A-0239-S

CISCO-BUG-ID: CSCvk38480

Detections

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