CVE-2020-3560
Description
A vulnerability in Cisco Aironet Access Points (APs) could allow an unauthenticated, remote attacker to cause a denial of service (DoS) on an affected device. The vulnerability is due to improper resource management while processing specific packets. An attacker could exploit this vulnerability by sending a series of crafted UDP packets to a specific port on an affected device. A successful exploit could either allow the attacker to tear down the connection between the AP and the wireless LAN controller, resulting in the affected device not being able to process client traffic, or cause the vulnerable device to reload, triggering a DoS condition. After the attack, the affected device should automatically recover its normal functions without manual intervention.
How to fix
- cisco wireless_lan_controller8.10.112.0 or later
- cisco wireless_lan_controller_software8.5.161.0, 8.8.130.0 or later
- cisco business_access_points10.1.1.0 or later
- cisco access_points16.12.4a or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| cisco wireless_lan_controller | 8.9 ≤ v < 8.10.112.0 | 8.10.112.0 |
| cisco wireless_lan_controller_software | v < 8.5.161.0, 8.6 ≤ v < 8.8.130.0 | 8.5.161.0, 8.8.130.0 |
| cisco business_access_points | 10.0 ≤ v < 10.1.1.0 | 10.1.1.0 |
| cisco access_points | v < 16.12.4a | 16.12.4a |
| cisco aironet_access_point_software | 8.5\(154.27\), 8.8\(125.0\), 8.10\(105.0\), 8.10\(105.4\), 17.1.2.6, 17.1.2.9, 17.2.0.37 | — |
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