Vulnerability identifier: #VU12390

Vulnerability risk: Low

CVSSv3.1: 3.8 [CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L/E:U/RL:O/RC:C]

CVE-ID: CVE-2018-0249

CWE-ID: CWE-19

Exploitation vector: Local network

Exploit availability: No

Vulnerable software:
Cisco Aironet 1850 Series Access Points
Hardware solutions / Routers & switches, VoIP, GSM, etc

Vendor: Cisco Systems, Inc

Description
The vulnerability allows an adjacent unauthenticated attacker to cause DoS condition on the target system.

The weakness exists due to incorrect handling of malformed or invalid 802.11 Association Requests. An adjacent attacker can send a specially crafted stream of 802.11 Association Requests to the local interface and cause the service to crash.

Mitigation
Update to versions 8.7(102.0), 8.7(1.30), 8.6(101.0), 8.6(1.117), 8.5(110.0), 8.5(107.49), 8.3(140.0), 8.3(134.8), 8.3(130.5) or 8.2(163.7).

Vulnerable software versions

Cisco Aironet 1850 Series Access Points: 8.2.161.0

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External links
http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180502-aironet-dos

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Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the local network (LAN).

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.