CVE-2017-12275 Denial of service in Cisco Wireless LAN Controller
An unauthenticated adjacent attacker can cause a Cisco Wireless LAN Controller to reload unexpectedly by sending malformed 802.11v packets, resulting in a denial of service.
- 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-2017-12275?
CVE-2017-12275 is a high-severity denial of service vulnerability in Cisco Wireless Lan Controller Software, 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 implementation of 802.11v Basic Service Set (BSS) Transition Management functionality in Cisco Wireless LAN Controllers could allow an unauthenticated, adjacent attacker to cause an affected device to reload unexpectedly, resulting in a denial of service (DoS) condition. The vulnerability is due to insufficient input validation of 802.11v BSS Transition Management Response packets that an affected device receives from wireless clients. An attacker could exploit this vulnerability by sending a malformed 802.11v BSS Transition Management Response packet to an affected device. A successful exploit could allow the attacker to cause the affected device to reload unexpectedly, resulting in a DoS condition. Cisco Bug IDs: CSCvb57803.
Weakness: CWE-20
Which versions are affected by CVE-2017-12275?
It affects 1 product.
Products include Cisco Wireless Lan Controller Software.
How do I fix CVE-2017-12275?
No fix has been published for CVE-2017-12275 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-2017-12275 being exploited?
There is no known exploitation of CVE-2017-12275 in the wild and no public exploit code.
Other vulnerabilities in Cisco Wireless Lan Controller Software
Sources
Also known as GHSA-fv9c-8f5w-w2rc.