Vulnerability CVE-2019-1920


Published: 2019-07-17   Modified: 2019-07-18

Description:
A vulnerability in the 802.11r Fast Transition (FT) implementation for Cisco IOS Access Points (APs) Software could allow an unauthenticated, adjacent attacker to cause a denial of service (DoS) condition on an affected interface. The vulnerability is due to a lack of complete error handling condition for client authentication requests sent to a targeted interface configured for FT. An attacker could exploit this vulnerability by sending crafted authentication request traffic to the targeted interface, causing the device to restart unexpectedly.

Type:

CWE-20

(Improper Input Validation)

CVSS2 => (AV:A/AC:L/Au:N/C:N/I:N/A:C)

CVSS Base Score
Impact Subscore
Exploitability Subscore
6.1/10
6.9/10
6.5/10
Exploit range
Attack complexity
Authentication
Adjacent network
Low
No required
Confidentiality impact
Integrity impact
Availability impact
None
None
Complete
Affected software
Cisco -> Aironet 3700e firmware 
Cisco -> Aironet 3700i firmware 
Cisco -> Aironet 3700p firmware 

 References:
http://www.securityfocus.com/bid/109312
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190717-aironet-dos

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