Cisco IOS XE Software IOx Application Hosting Privilege Escalation (cisco-sa-iosxe-iox-app-host-mcZcnsBt)

high Nessus Plugin ID 142891

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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 Software is affected by a privilege escalation vulnerability in the application-hosting subsystem due to incomplete input validation of the user payload of CLI commands and improper role-based access control when commands are issued at the command line within the application-hosting subsystem. An authenticated, local attacker could exploit this vulnerability by using a CLI command with crafted user input. A successful exploit could allow the lower-privileged attacker to execute arbitrary CLI 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 IDs CSCvr56862, CSCvr69240

Plugin Details

Severity: High

ID: 142891

File Name: cisco-sa-iosxe-iox-app-host-mcZcnsBt-iosxe.nasl

Version: 1.8

Type: combined

Family: CISCO

Published: 11/13/2020

Updated: 9/28/2023

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 6.7

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-2020-3393

CVSS v3

Risk Factor: High

Base Score: 7.8

Temporal Score: 6.8

Vector: CVSS:3.0/AV:L/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

Exploit Ease: No known exploits are available

Patch Publication Date: 9/24/2020

Vulnerability Publication Date: 9/24/2020

Reference Information

CVE: CVE-2020-3393

CWE: 269

CISCO-SA: cisco-sa-iosxe-iox-app-host-mcZcnsBt

IAVA: 2020-A-0439-S

CISCO-BUG-ID: CSCvr56862, CSCvr69240

Detections

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