A vulnerability in RADIUS Change of Authorization (CoA) request processing in the Cisco Wireless LAN Controller (WLC) could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition by disconnecting a single connection.
The vulnerability is due to lack of proper input validation of the RADIUS CoA packet header. An attacker could exploit this vulnerability by sending a crafted RADIUS CoA packet to a targeted device. A successful exploit could allow the attacker to disconnect a connection through the WLC unexpectedly.
There are no workarounds that address this vulnerability.
This advisory is available at the following link:
https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20170405-wlc1 [“https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20170405-wlc1”]
Vendor | Product | Version | CPE |
---|---|---|---|
cisco | wireless_lan_controller | 8.3 | cpe:2.3:h:cisco:wireless_lan_controller:8.3:*:*:*:*:*:*:* |
cisco | wireless_lan_controller | 8.3.102.0 | cpe:2.3:h:cisco:wireless_lan_controller:8.3.102.0:*:*:*:*:*:*:* |