CVE-2016-9195 Denial of service in Cisco Wireless LAN Controller

Medium 5.3 Published 7 Apr 2017 Updated 6 Aug 2024

An unauthenticated remote attacker can cause a denial of service by disconnecting a single connection via RADIUS CoA requests in Cisco WLC.

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-2016-9195?

CVE-2016-9195 is a medium-severity denial of service vulnerability in Cisco Wireless LAN Controller, published on 7 Apr 2017. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

A vulnerability in RADIUS Change of Authorization (CoA) request processing in the Cisco Wireless LAN Controller (WLC) could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition by disconnecting a single connection. This vulnerability affects Cisco Wireless LAN Controller running software release 8.3.102.0. More Information: CSCvb01835. Known Fixed Releases: 8.4(1.49) 8.3(111.0) 8.3(108.0) 8.3(104.24) 8.3(102.3).

Weakness: CWE-399

Which versions are affected by CVE-2016-9195?

It affects 1 product.

Products include Cisco Wireless Lan Controller.

How do I fix CVE-2016-9195?

No fix has been published for CVE-2016-9195 yet. Limit exposure of the affected software until one is available.

Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.

Is CVE-2016-9195 being exploited?

There is no known exploitation of CVE-2016-9195 in the wild and no public exploit code.

Sources

Also known as GHSA-4gj6-j8jc-q433.