CVE-2021-1388 Cisco ACI Multi-Site Orchestrator Application Services Engine Deployment Authentication Bypass Vulnerability

Critical 10.0 Published Updated

Unauthenticated remote attackers can bypass authentication to obtain administrator-level tokens for Cisco ACI Multi-Site Orchestrator and managed APIC devices.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Over the internet
Victim action needed
Not needed
Fix
None listed

What is CVE-2021-1388?

CVE-2021-1388 is a critical authentication bypass vulnerability in Cisco ACI Multi-Site Orchestrator Software, published on 24 Feb 2021. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

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.

Weakness: CWE-269

Which versions are affected by CVE-2021-1388?

It affects 2 products.

Products include Cisco Aci Multi-Site Orchestrator, Cisco Application Policy Infrastructure Controller.

How do I fix CVE-2021-1388?

No fix has been published for CVE-2021-1388 yet. Limit exposure of the affected software until one is available.

Upgrade, and rotate credentials and sessions that may have been exposed. More about Authentication bypass.

Is CVE-2021-1388 being exploited?

There is no known exploitation of CVE-2021-1388 in the wild and no public exploit code.

Sources

Also known as GHSA-m8g7-f94v-5fp8.

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