Cisco IOx for IOS XE Software Privilege Escalation (cisco-sa-ioxPE-KgGvCAf9)

critical Nessus Plugin ID 137143

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 vulnerability in the authorization controls for the Cisco IOx application hosting infrastructure due to incorrect handling of requests for authorization tokens. An unauthenticated, remote attacker can exploit this, by using a crafted API call to request such a token, in order to execute Cisco IOx API commands without proper authorization.

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 CSCvq18527, CSCvq83400

See Also

http://www.nessus.org/u?fc91c220

http://tools.cisco.com/security/center/viewErp.x?alertId=ERP-73388

https://bst.cloudapps.cisco.com/bugsearch/bug/CSCvq18527

https://bst.cloudapps.cisco.com/bugsearch/bug/CSCvq83400

Plugin Details

Severity: Critical

ID: 137143

File Name: cisco-sa-ioxPE-KgGvCAf9-iosxe.nasl

Version: 1.11

Type: combined

Family: CISCO

Published: 6/5/2020

Updated: 5/3/2024

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 5.9

CVSS v2

Risk Factor: Critical

Base Score: 10

Temporal Score: 7.4

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

CVSS Score Source: CVE-2020-3227

CVSS v3

Risk Factor: Critical

Base Score: 9.8

Temporal Score: 8.5

Vector: CVSS:3.0/AV:N/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/IOS-XE/Version

Exploit Ease: No known exploits are available

Patch Publication Date: 6/3/2020

Vulnerability Publication Date: 6/3/2020

Reference Information

CVE: CVE-2020-3227

CWE: 264

CISCO-SA: cisco-sa-ioxPE-KgGvCAf9

IAVA: 2020-A-0239-S

CISCO-BUG-ID: CSCvq18527, CSCvq83400