A vulnerability in the mesh code of Cisco Wireless LAN Controller (WLC) software could allow an unauthenticated, remote attacker to impersonate a WLC in a meshed topology. The vulnerability is due to insufficient authentication of the parent access point in a mesh configuration. An attacker could exploit this vulnerability by forcing the target system to disconnect from the correct parent access point and reconnect to a rogue access point owned by the attacker. An exploit could allow the attacker to control the traffic flowing through the impacted access point or take full control of the target system. This vulnerability affects the following products running a vulnerable version of Wireless LAN Controller software and configured for meshed mode: Cisco 8500 Series Wireless Controller, Cisco 5500 Series Wireless Controller, Cisco 2500 Series Wireless Controller, Cisco Flex 7500 Series Wireless Controller, Cisco Virtual Wireless Controller, Wireless Services Module 2 (WiSM2). Note that additional configuration is needed in addition to upgrading to a fixed release. Cisco Bug IDs: CSCuc98992 CSCuu14804.
This is a vulnerability exploitable with adjacent network access and requires the attacker to have
access to either the broadcast or collision domain of the vulnerable software. Examples of
local networks include local IP subnet, Bluetooth, IEEE 802.11, and local Ethernet
Specialized access conditions or extenuating circumstances do not exist. The following are examples:
The affected product typically requires access to a wide range of systems and users, possibly anonymous an untrusted (e.g., Internet-facing web or mail server).
The affected configuration is default or ubiquitous. The attack can be performed manually and requires little skill or additional information gathering.
The 'race condition' is a lazy one (i.e., it is technically a race but easily winnable).
Authentication is not required to access and exploit the vulnerability.
There is total information disclosure, resulting in all system files being revealed. The
attacker is able to read all of the system's data (memory, files, etc.).
There is a total compromise of system integrity. There is a complete loss of system
protection, resulting in the entire system being compromised. The attacker is able to
modify any files on the target system.
There is a total shutdown of the affected resource. The attacker can render the
resource completely unavailable.