#VU9096 Authentication bypass in Aironet - CVE-2017-12281
Published: November 2, 2017
Vulnerability identifier: #VU9096
Vulnerability risk: Low
CVSSv4.0: CVSS:4.0/AV:A/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2017-12281
CWE-ID: CWE-287
Exploitation vector: Adjecent network
Exploit availability:
No public exploit available
Vulnerable software:
Aironet
Aironet
Software vendor:
Cisco Systems, Inc
Cisco Systems, Inc
Description
The vulnerability allows an adjacent attacker to bypass authentication and connect on the target system.
The weakness exists in the implementation of Protected Extensible Authentication Protocol (PEAP) functionality for standalone configurations of Cisco Aironet 1800, 2800, and 3800 Series Access Points due to incorrect default configuration setting of fail open when running in standalone mode. An adjacent attacker can bypass authentication and cause denial of service.
The weakness exists in the implementation of Protected Extensible Authentication Protocol (PEAP) functionality for standalone configurations of Cisco Aironet 1800, 2800, and 3800 Series Access Points due to incorrect default configuration setting of fail open when running in standalone mode. An adjacent attacker can bypass authentication and cause denial of service.
Remediation
Install update from vendor's website.