Vulnerability Monitor

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CVE-2017-3854

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.

Published

2017-03-15T20:59:00.257

Last Modified

2025-04-20T01:37:25.860

Status

Deferred

Source

[email protected]

Severity

CVSSv3.1: 8.8 (HIGH)

CVSSv2 Vector

AV:A/AC:L/Au:N/C:C/I:C/A:C

  • Access Vector: ADJACENT_NETWORK
  • Access Complexity: LOW
  • Authentication: NONE
  • Confidentiality Impact: COMPLETE
  • Integrity Impact: COMPLETE
  • Availability Impact: COMPLETE
Exploitability Score

6.5

Impact Score

10.0

Weaknesses
  • Type: Primary
    CWE-287
Affected Vendors & Products
Type Vendor Product Version/Range Vulnerable?
Operating System cisco wireless_lan_controller_firmware 8.0.72.140 Yes
Operating System cisco wireless_lan_controller_software 6.0199.4 Yes
Operating System cisco wireless_lan_controller_software 7.41.54 Yes
Operating System cisco wireless_lan_controller_software 7.0220.0 Yes
Operating System cisco wireless_lan_controller_software 7.0250.0 Yes
Operating System cisco wireless_lan_controller_software 16.088.0 Yes
Hardware cisco 2500_wireless_lan_controller - No
Hardware cisco 2504_wireless_lan_controller - No
Hardware cisco 5500_wireless_lan_controller - No
Hardware cisco 5508_wireless_lan_controller - No
Hardware cisco 7500_wireless_lan_controller - No
Hardware cisco 7510_wireless_lan_controller - No
Hardware cisco 8510_wireless_lan_controller - No
Hardware cisco 8540_wireless_lan_controller - No
Hardware cisco virtual_wireless_controller - No
Hardware cisco wireless_service_module_2 - No
References