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Cisco Bug: CSCul15509 - AP crash if malformed EAP frame received w/ "debug dot11 aaa ..." set

Last Modified

Aug 06, 2018

Products (1)

  • Cisco Aironet 3700 Series Access Points

Known Affected Releases


Description (partial)

A vulnerability in the debugging features of Cisco IOS running on Aironet Access Points could allow an unauthenticate, adjacent attacker to create a 
denial of service condition.

The vulnerability is due to a failure to properly process a certain debugging message that may occur when the 'debug dot11 aaa authenticator all' 
command is enabled and a specifically malformed EAP packet is received.  An attacker could exploit this vulnerability by sending a packet 
specifically designed to trigger the issue while a network administrator is actively debugging the device.

This vulnerability was reported to Cisco by Maxim Salomon and Timo Warns of Airbus Operations GmbH.

Devices running an affected version of Cisco IOS software and that have enabled the 'debug dot11 aaa authenticator all' command
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Bug Details Include

  • Full Description (including symptoms, conditions and workarounds)
  • Status
  • Severity
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  • Related Community Discussions
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