CVE-2017-12283 Denial of service in Cisco Aironet 3800 Series Access Points
An adjacent attacker can terminate valid user connections on Cisco Aironet 3800 Access Points by spoofing 802.11w frames in FlexConnect mode.
- 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-2017-12283?
CVE-2017-12283 is a medium-severity denial of service vulnerability in Cisco Aironet 3800 Series Access Points, published on 2 Nov 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 handling of 802.11w Protected Management Frames (PAF) by Cisco Aironet 3800 Series Access Points could allow an unauthenticated, adjacent attacker to terminate a valid user connection to an affected device, aka Denial of Service. The vulnerability exists because the affected device does not properly validate 802.11w PAF disassociation and deauthentication frames that it receives. An attacker could exploit this vulnerability by sending a spoofed 802.11w PAF frame from a valid, authenticated client on an adjacent network to an affected device. A successful exploit could allow the attacker to terminate a single valid user connection to the affected device. This vulnerability affects Access Points that are configured to run in FlexConnect mode. Cisco Bug IDs: CSCvc20627.
Weakness: CWE-119
Which versions are affected by CVE-2017-12283?
It affects 1 product.
Products include Cisco Aironet 3800 Firmware.
How do I fix CVE-2017-12283?
No fix has been published for CVE-2017-12283 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-2017-12283 being exploited?
There is no known exploitation of CVE-2017-12283 in the wild and no public exploit code.
Sources
Also known as GHSA-qw4p-vv9v-q4vv.