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Category:   Device (Router/Bridge/Hub)  >   Cisco Aironet Vendors:   Cisco
Cisco Aironet Wireless Access Point Memory Can Be Consumed With Spoofed ARP Packets
SecurityTracker Alert ID:  1015483
SecurityTracker URL:  http://securitytracker.com/id/1015483
CVE Reference:   GENERIC-MAP-NOMATCH   (Links to External Site)
Date:  Jan 12 2006
Impact:   Denial of service via network
Fix Available:  Yes  Vendor Confirmed:  Yes  

Description:   A vulnerability was reported in Cisco Aironet Wireless Access Points (AP) running IOS. A remote user can cause denial of service conditions.

A remote user that has successfully associated with a target Cisco IOS Wireless Access Point can send specially crafted, spoofed ARP packets to the management interface on the target device to consume all available physical memory. As a result, the device will no longer process traffic. A power cycle is required to return the device to normal operations.

The following devices are affected:

* Cisco Aironet 1400 Series Wireless Bridges
* Cisco Aironet 1300 Series Access Points
* Cisco Aironet 1240AG Series Access Points
* Cisco Aironet 1230AG Series Access Points
* Cisco Aironet 1200 Series Access Points
* Cisco Aironet 1130AG Series Access Points
* Cisco Aironet 1100 Series Access Points
* Cisco Aironet 350 Series Access Points running IOS

Cisco has assigned Bug ID CSCsc16644 to this vulnerability.

The vendor credits Eric Smith at Bucknell University with reporting this vulnerability.

Impact:   A remote user can cause packet forwarding services to become unavailable.
Solution:   Cisco has issued a fixed version of IOS (12.3-7-JA2), available at:

http://www.cisco.com/public/sw-center/sw-wireless.shtml

The vendor's advisory is available at:

http://www.cisco.com/warp/public/707/cisco-sa-20060112-wireless.shtml

Vendor URL:  www.cisco.com/warp/public/707/cisco-sa-20060112-wireless.shtml (Links to External Site)
Cause:   Resource error, State error

Message History:   None.


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