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Cisco Bug: CSCul19899 - Partial memory disclosure on processing of invalid EAP ID frames

Last Modified

Jul 16, 2019

Products (1)

  • Cisco Aironet 3700 Series Access Points

Known Affected Releases


Description (partial)

Cisco AiroNet Access Points contain a vulnerability within the 802.1x subsystem that could allow an unauthenticated, adjacent attacker to disclose potentially sensitive information. 

The vulnerability is due to a buffer over-read when a response is generated for a certain sequence during the EAP Handshake.  The disclosed memory typically contains portions of a previously processed 
packet.  An attacker could exploit this vulnerability by initiating an EAP Handshake and suppling a crafted value as part of the sequence.

Cisco AiroNet Access Points running an affected version of Cisco IOS Software.
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Bug Details Include

  • Full Description (including symptoms, conditions and workarounds)
  • Status
  • Severity
  • Known Fixed Releases
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