CVE-2017-6664 Auth bypass in Cisco IOS XE

High 7.5 Published 7 Aug 2017 Updated 5 Aug 2024

An unauthenticated remote attacker can bypass certificate revocation checks to access Autonomic Networking infrastructure on Cisco IOS XE 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-2017-6664?

CVE-2017-6664 is a high-severity authentication bypass vulnerability in Cisco Ios Xe, published on 7 Aug 2017. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

A vulnerability in the Autonomic Networking feature of Cisco IOS XE Software could allow an unauthenticated, remote, autonomic node to access the Autonomic Networking infrastructure of an affected system, after the certificate for the autonomic node has been revoked. This vulnerability affected devices that are running Release 16.x of Cisco IOS XE Software and are configured to use Autonomic Networking. This vulnerability does not affect devices that are running an earlier release of Cisco IOS XE Software or devices that are not configured to use Autonomic Networking. More Information: CSCvd22328. Known Affected Releases: 15.5(1)S3.1 Denali-16.2.1.

Weakness: CWE-295

Which versions are affected by CVE-2017-6664?

It affects 1 product.

Products include Cisco Ios Xe.

How do I fix CVE-2017-6664?

No fix has been published for CVE-2017-6664 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-2017-6664 being exploited?

There is no known exploitation of CVE-2017-6664 in the wild and no public exploit code.

All Cisco Ios Xe vulnerabilities

Sources

Also known as GHSA-7v4f-rwhc-7rw2.