CVE-2023-20268 Cisco Access Point Software Uncontrolled Resource Consumption Vulnerability
An unauthenticated adjacent attacker can exhaust resources on Cisco access points by sending specific wireless packets, causing service disruption.
- 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-2023-20268?
CVE-2023-20268 is a medium-severity denial of service vulnerability in Cisco Wireless Lan Controller Software, published on 27 Sep 2023. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
A vulnerability in the packet processing functionality of Cisco access point (AP) software could allow an unauthenticated, adjacent attacker to exhaust resources on an affected device. This vulnerability is due to insufficient management of resources when handling certain types of traffic. An attacker could exploit this vulnerability by sending a series of specific wireless packets to an affected device. A successful exploit could allow the attacker to consume resources on an affected device. A sustained attack could lead to the disruption of the Control and Provisioning of Wireless Access Points (CAPWAP) tunnel and intermittent loss of wireless client traffic.
Weakness: CWE-400
Which versions are affected by CVE-2023-20268?
It affects 4 products.
Products include Cisco Business 150ax Firmware, Cisco Business 151axm Firmware, Cisco Catalyst 9800 Embedded Wireless Controller Firmware, Cisco Wireless Lan Controller Software.
How do I fix CVE-2023-20268?
No fix has been published for CVE-2023-20268 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-2023-20268 being exploited?
There is no known exploitation of CVE-2023-20268 in the wild and no public exploit code.
Other vulnerabilities in Cisco Wireless Lan Controller Software
Sources
Also known as GHSA-p572-r8g2-hv9h.