CVE-2019-1974 Auth bypass in Cisco Unified Computing System Director

Critical 9.8 Published Updated

Unauthenticated remote attackers can bypass authentication to gain full administrative access to Cisco IMC Supervisor and UCS Director systems.

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-2019-1974?

CVE-2019-1974 is a critical authentication bypass 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 bypass user authentication and gain access as an administrative user. The vulnerability is due to insufficient request header validation during the authentication process. An attacker could exploit this vulnerability by sending a series of malicious requests to an affected device. An exploit could allow the attacker to gain full administrative access to the affected device.

Weakness: CWE-287

Which versions are affected by CVE-2019-1974?

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-2019-1974?

No fix has been published for CVE-2019-1974 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-2019-1974 being exploited?

There is no known exploitation of CVE-2019-1974 in the wild and no public exploit code.

Sources

Also known as GHSA-gxx4-r6p9-84cg.

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