Vulnerability identifier: #VU15418

Vulnerability risk: Low

CVSSv3.1: 5.9 [CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2018-0381

CWE-ID: CWE-264

Exploitation vector: Local network

Exploit availability: No

Vulnerable software:
Aironet
Hardware solutions / Firmware

Vendor: Cisco Systems, Inc

Description

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

The vulnerability exists in the Cisco Aironet 1560, 1800, 2800, and 3800 Series Access Points (APs) software due to a deadlock condition that may occur when an affected AP attempts to dequeue aggregated traffic that is destined to an attacker-controlled wireless client. An adjacent attacker who can successfully transition between multiple Service Set Identifiers (SSIDs) hosted on the same AP while replicating the required traffic patterns can trigger the deadlock condition and cause watchdog timer that detects the condition to reload of the device.

Mitigation
Install update from vendor's website.

Vulnerable software versions

Aironet: 1560 Series - 3800 Series

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External links
http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20181017-aironet-dos

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Q & A

Can this vulnerability be exploited remotely?

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

Is there known malware, which exploits this vulnerability?

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