Cisco IOS XE Software SD WAN Console Privilege Escalation (cisco-sa-sdwan-esc-rSNVvTf9)

medium Nessus Plugin ID 151467

Synopsis

The remote device is missing a vendor-supplied security patch

Description

A vulnerability in the role-based access control of Cisco IOS XE SD-WAN Software could allow an authenticated, local attacker with read-only privileges to obtain administrative privileges by using the console port when the device is in the default SD-WAN configuration. This vulnerability occurs because the default configuration is applied for console authentication and authorization. An attacker could exploit this vulnerability by connecting to the console port and authenticating as a read-only user. A successful exploit could allow a user with read-only permissions to access administrative 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 CSCvv43400

See Also

http://www.nessus.org/u?3ed89e18

https://bst.cloudapps.cisco.com/bugsearch/bug/CSCvv43400

Plugin Details

Severity: Medium

ID: 151467

File Name: cisco-sa-sdwan-esc-rSNVvTf9-iosxe.nasl

Version: 1.5

Type: combined

Family: CISCO

Published: 7/8/2021

Updated: 7/9/2021

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-2021-1371

CVSS v3

Risk Factor: Medium

Base Score: 6.6

Temporal Score: 5.8

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

Required KB Items: Host/Cisco/IOS-XE/Version, Host/Cisco/SDWAN

Exploit Ease: No known exploits are available

Patch Publication Date: 3/24/2021

Vulnerability Publication Date: 3/24/2021

Reference Information

CVE: CVE-2021-1371

CWE: 269

CISCO-SA: cisco-sa-sdwan-esc-rSNVvTf9

CISCO-BUG-ID: CSCvv43400