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Cisco Security Advisory: Cisco Aironet 1560, 2800, and 3800 Series Access Point Platforms 802.11 Denial of Service Vulnerability

Advisory ID: cisco-sa-20171101-aironet1

Revision: 1.0

For Public Release: 2017 November 1 16:00 GMT

Last Updated: 2017 November 1 16:00 GMT

CVE ID(s): CVE-2017-12273

CVSS Score v(3): 7.4 CVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H

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Summary
=======
A vulnerability in 802.11 association request frame processing for the Cisco Aironet 1560, 2800, and 3800 Series Access Points could allow an unauthenticated, Layer 2 radio frequency (RF) adjacent attacker to cause the Access Point (AP) to reload, resulting in a denial of service (DoS) condition.

The vulnerability is due to insufficient frame validation of the 802.11 association request. An attacker could exploit this vulnerability by sending a malformed 802.11 association request to the targeted device. An exploit could allow the attacker to cause the AP to reload, resulting in a DoS condition while the AP is reloading.

Cisco has released software updates that address this vulnerability. There are no workarounds that address this vulnerability.

This advisory is available at the following link:
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20171101-aironet1 [“https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20171101-aironet1”]

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