CVE-2017-12222 Denial of service in Cisco IOS XE

Medium 6.5 Published 28 Sep 2017 Updated 5 Aug 2024

An unauthenticated adjacent attacker can cause a denial of service on Cisco Catalyst switches acting as wireless controllers by sending a crafted association request.

Exploited in the wild: Not known
Login needed: Not needed
Attackable: Local or same network only
Victim action needed: Not needed
Fix: None listed

What is CVE-2017-12222?

CVE-2017-12222 is a medium-severity denial of service vulnerability in Cisco Ios Xe, published on 28 Sep 2017. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

A vulnerability in the wireless controller manager of Cisco IOS XE could allow an unauthenticated, adjacent attacker to cause a restart of the switch and result in a denial of service (DoS) condition. The vulnerability is due to insufficient input validation. An attacker could exploit this vulnerability by submitting a crafted association request. An exploit could allow the attacker to cause the switch to restart. This vulnerability affects Cisco Catalyst 3650 and 3850 switches running IOS XE Software versions 16.1 through 16.3.3, and acting as wireless LAN controllers (WLC). Cisco Bug IDs: CSCvd45069.

Weakness: CWE-20, CWE-399

Which versions are affected by CVE-2017-12222?

It affects 1 product.

Products include Cisco Ios Xe.

How do I fix CVE-2017-12222?

No fix has been published for CVE-2017-12222 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-2017-12222 being exploited?

There is no known exploitation of CVE-2017-12222 in the wild and no public exploit code.

All Cisco Ios Xe vulnerabilities

Sources

Also known as GHSA-h5jp-68rm-94gf.