cisco-sa-20181017-wlan-escalation: Cisco Wireless LAN Controller Software Privilege Escalation Vulnerability
First published: Wed Oct 17 2018(Updated: )
A vulnerability in the authentication and authorization checking mechanisms of Cisco Wireless LAN Controller (WLC) Software could allow an authenticated, adjacent attacker to gain network access to a Cisco TrustSec domain. Under normal circumstances, this access should be prohibited. The vulnerability is due to the dynamic assignment of Security Group Tags (SGTs) during a wireless roam from one Service Set Identifier (SSID) to another within the Cisco TrustSec domain. An attacker could exploit this vulnerability by attempting to acquire an SGT from other SSIDs within the domain. Successful exploitation could allow the attacker to gain privileged network access that should be prohibited under normal circumstances. There are no workarounds that address this vulnerability. This advisory is available at the following link: https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20181017-wlan-escalation
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Cisco Wireless LAN Controllers |
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Reference Links
Frequently Asked Questions
What is the severity of cisco-sa-20181017-wlan-escalation?
The vulnerability cisco-sa-20181017-wlan-escalation has a critical severity rating.
How do I fix cisco-sa-20181017-wlan-escalation?
To fix cisco-sa-20181017-wlan-escalation, update your Cisco Wireless LAN Controller Software to the latest version provided by Cisco.
Who is affected by cisco-sa-20181017-wlan-escalation?
The cisco-sa-20181017-wlan-escalation vulnerability affects users of the Cisco Wireless LAN Controller Software.
What can an attacker do with cisco-sa-20181017-wlan-escalation?
An attacker exploiting cisco-sa-20181017-wlan-escalation can gain unauthorized network access to a Cisco TrustSec domain.
Is authentication required to exploit cisco-sa-20181017-wlan-escalation?
Yes, exploitation of cisco-sa-20181017-wlan-escalation requires the attacker to be an authenticated user.
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