CVE-2021-1388: Cisco ACI Multi-Site Orchestrator Application Services Engine Deployment Authentication Bypass Vulnerability
First published: Wed Feb 24 2021(Updated: )
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.
Credit: ykramarz@cisco.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Cisco ACI Multi-Site Orchestrator | >=3.0<3.0\(3m\) | |
| Cisco Application Policy Infrastructure Controller | =3.0\(3i\) |
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Reference Links
Frequently Asked Questions
What is CVE-2021-1388?
CVE-2021-1388 is a vulnerability in an API endpoint of Cisco ACI Multi-Site Orchestrator (MSO) installed on the Application Services Engine that allows an unauthenticated, remote attacker to bypass authentication.
How does CVE-2021-1388 affect Cisco ACI Multi-Site Orchestrator?
CVE-2021-1388 affects Cisco ACI Multi-Site Orchestrator by enabling an unauthenticated attacker to bypass authentication.
What is the severity of CVE-2021-1388?
CVE-2021-1388 has a severity rating of critical with a CVSS score of 10.
How can I fix CVE-2021-1388?
To fix CVE-2021-1388, apply the necessary updates or patches provided by Cisco.
Where can I find more information about CVE-2021-1388?
You can find more information about CVE-2021-1388 on the Cisco Security Advisory page at https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-mso-authbyp-bb5GmBQv
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