CVE-2019-12634 Missing authorization in Cisco Unified Computing System Director

High 8.6 Published Updated

Unauthenticated remote attackers can cause denial of service by logging off all users via an unauthenticated API call in Cisco UCS Director.

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-2019-12634?

CVE-2019-12634 is a high-severity missing authorization vulnerability in Cisco Unified Computing System Director, published on 21 Aug 2019. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

A vulnerability in the web-based management interface of Cisco Integrated Management Controller (IMC) Supervisor, Cisco UCS Director, and Cisco UCS Director Express for Big Data could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition. The vulnerability is due to a missing authentication check in an API call. An attacker who can send a request to an affected system could cause all currently authenticated users to be logged off. Repeated exploitation could cause the inability to maintain a session in the web-based management portal.

Weakness: CWE-306, CWE-264

Which versions are affected by CVE-2019-12634?

It affects 3 products.

Products include Cisco Integrated Management Controller Supervisor, Cisco Ucs Director, Cisco Ucs Director Express for Big Data.

How do I fix CVE-2019-12634?

No fix has been published for CVE-2019-12634 yet. Limit exposure of the affected software until one is available.

Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.

Is CVE-2019-12634 being exploited?

There is no known exploitation of CVE-2019-12634 in the wild and no public exploit code.

Sources

Also known as GHSA-rq9c-9fj9-7wh3.

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