CVE-2017-6711 Auth bypass in Cisco Ultra Services Framework

Critical 9.1 Published 6 Jul 2017 Updated 5 Aug 2024

Unauthenticated remote attackers can access ZooKeeper data nodes and influence system behavior due to insecure default configurations in Cisco Ultra Services Framework.

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-2017-6711?

CVE-2017-6711 is a critical authentication bypass vulnerability in Cisco Ultra Services Framework, published on 6 Jul 2017. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

A vulnerability in the Ultra Automation Service (UAS) of the Cisco Ultra Services Framework could allow an unauthenticated, remote attacker to gain unauthorized access to a targeted device. The vulnerability is due to an insecure default configuration of the Apache ZooKeeper service used by the affected software. An attacker could exploit this vulnerability by accessing the affected device through the orchestrator network. An exploit could allow the attacker to gain access to ZooKeeper data nodes (znodes) and influence the behavior of the system's high-availability feature. This vulnerability affects all releases of Cisco Ultra Services Framework UAS prior to Releases 5.0.3 and 5.1. Cisco Bug IDs: CSCvd29395.

Weakness: CWE-287

Which versions are affected by CVE-2017-6711?

It affects 1 product.

Products include Cisco Ultra Services Framework.

How do I fix CVE-2017-6711?

No fix has been published for CVE-2017-6711 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-2017-6711 being exploited?

There is no known exploitation of CVE-2017-6711 in the wild and no public exploit code.

Sources

Also known as GHSA-6rjw-8mv2-7m5v.