Vulnerability identifier: #VU9089

Vulnerability risk: Low

CVSSv3.1: 4 [CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L/E:U/RL:U/RC:C]

CVE-ID: CVE-2017-12280

CWE-ID: CWE-20

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Cisco Wireless LAN Controller
Hardware solutions / Firmware

Vendor: Cisco Systems, Inc

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

The weakness exists in the Control and Provisioning of Wireless Access Points (CAPWAP) Discovery Request parsing functionality of Cisco Wireless LAN Controllers due to incomplete input validation of fields in CAPWAP Discovery Request packets. An remote attacker can send a specially crafted CAPWAP Discovery Request packets and cause the device to reload.

Successful exploitation of the vulnerability results in denial of service.

Mitigation
Cubersecurity Help is currently unaware of any solutions addressing the vulnerability.

Vulnerable software versions

Cisco Wireless LAN Controller: 8.0.133.0

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External links
http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20171101-wlc3

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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 Internet.

Is there known malware, which exploits this vulnerability?

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