Detections
Analytics
Cisco ACI Multi-Site Orchestrator Application Services Engine Deployment Authentication Bypass (cisco-sa-mso-authbyp-bb5GmBQv)
critical Nessus Plugin ID 151020
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Synopsis
The remote device is missing a vendor-supplied security patchDescription
According to its self-reported version, a vulnerability in an API endpoint of Cisco ACI Multi-Site Orchestrator (MSO) installed on the Application Services Engine could allow an unauthenticated, remote attacker to bypass authentication on an affected device. The vulnerability is due to improper token validation on a specific API endpoint. An attacker could exploit this vulnerability by sending a crafted request to the affected API. A successful exploit could allow the attacker to receive a token with administrator-level privileges that could be used to authenticate to the API on affected MSO and managed Cisco Application Policy Infrastructure Controller (APIC) devices.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 CSCvw14141See Also
Plugin Details
Severity: Critical
ID: 151020
File Name: cisco-sa-mso-authbyp-bb5GmBQv.nasl
Version: 1.3
Type: remote
Family: CISCO
Published: 6/28/2021
Updated: 6/29/2021
Supported Sensors: Nessus
Risk Information
VPR
Risk Factor: Medium
Score: 6.5
CVSS v2
Risk Factor: High
Base Score: 9.3
Temporal Score: 6.9
Vector: CVSS2#AV:N/AC:M/Au:N/C:C/I:C/A:C
CVSS Score Source: CVE-2021-1388
CVSS v3
Risk Factor: Critical
Base Score: 10
Temporal Score: 8.7
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C
Vulnerability Information
CPE: x-cpe:/a:cisco:aci_multisite_orchestrator
Required KB Items: installed_sw/Cisco ACI Multi-Site Orchestrator
Exploit Ease: No known exploits are available
Patch Publication Date: 2/24/2021
Vulnerability Publication Date: 2/24/2021
Reference Information
CVE: CVE-2021-1388