CVE-2019-15276 HIGH

CVE-2019-15276: Cisco Wireless LAN Controller HTTP Parsing Engine Denial of Service Vulnerability

Vendor Cisco
Product Cisco Wireless LAN Controller (WLC)
Weakness CWE-20 · Input validation
Published November 26, 2019
Last update November 21, 2024

CVSS base score

7.7/10
Attack vector Network
Attack complexity Low
Privileges required Low
User interaction None
Confidentiality None
Integrity None

CVSS vector

CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H

What the vulnerability does

01Description

A vulnerability in the web interface of Cisco Wireless LAN Controller Software could allow a low-privileged, authenticated, remote attacker to cause a denial of service (DoS) condition on an affected device. The vulnerability exists due to a failure of the HTTP parsing engine to handle specially crafted URLs. An attacker could exploit this vulnerability by authenticating with low privileges to an affected controller and submitting the crafted URL to the web interface of the affected device. Conversely, an unauthenticated attacker could exploit this vulnerability by persuading a user of the web interface to click the crafted URL. A successful exploit could allow the attacker to cause an unexpected restart of the device, resulting in a DoS condition.

Key dates

02Disclosure timeline

November 26, 2019 CVE published
November 21, 2024 Record updated