cisco-sa-dclass-dos-VKh9D8k3: Cisco IOS XE Wireless Controller Software for the Catalyst 9000 Family WLAN Local Profiling Denial of Service Vulnerability
First published: Thu Sep 24 2020(Updated: )
A vulnerability in the WLAN Local Profiling feature of Cisco IOS XE Wireless Controller Software for the Cisco Catalyst 9000 Family could allow an unauthenticated, adjacent attacker to cause a denial of service (DoS) condition on an affected device. The vulnerability is due to incorrect parsing of HTTP packets while performing HTTP-based endpoint device classifications. An attacker could exploit this vulnerability by sending a crafted HTTP packet to an affected device. A successful exploit could cause an affected device to reboot, resulting in a DoS condition. Cisco has released software updates that address this vulnerability. There are no workarounds that address this vulnerability. Note: The WLAN Local Profiling feature is disabled by default. This advisory is available at the following link:https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-dclass-dos-VKh9D8k3 This advisory is part of the September 24, 2020, release of the Cisco IOS and IOS XE Software Security Advisory Bundled Publication, which includes 25 Cisco Security Advisories that describe 34 vulnerabilities. For a complete list of the advisories and links to them, see Cisco Event Response: September 2020 Semiannual Cisco IOS and IOS XE Software Security Advisory Bundled Publication.
Credit: This vulnerability was found during the resolution a Cisco TAC support case
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Cisco IOS XE Wireless Controller Software for the Catalyst 9000 Family | ||
| Cisco Catalyst 9000 Family |
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Reference Links
Frequently Asked Questions
What is the severity of cisco-sa-dclass-dos-VKh9D8k3?
The cisco-sa-dclass-dos-VKh9D8k3 vulnerability is classified as a denial of service (DoS) vulnerability.
How do I fix cisco-sa-dclass-dos-VKh9D8k3?
To mitigate the cisco-sa-dclass-dos-VKh9D8k3 vulnerability, update to the latest version of Cisco IOS XE Wireless Controller Software.
Who is affected by cisco-sa-dclass-dos-VKh9D8k3?
The cisco-sa-dclass-dos-VKh9D8k3 vulnerability affects devices running Cisco IOS XE Wireless Controller Software specifically in the Catalyst 9000 Family.
What type of attack can be executed using cisco-sa-dclass-dos-VKh9D8k3?
An attacker could exploit the cisco-sa-dclass-dos-VKh9D8k3 vulnerability to cause a denial of service on the affected device.
Is authentication required to exploit cisco-sa-dclass-dos-VKh9D8k3?
No, an unauthenticated and adjacent attacker can exploit the cisco-sa-dclass-dos-VKh9D8k3 vulnerability.
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