Cisco Wireless LAN Controller prior 8.0.140.0/8.2.130.0/8.3.111.0 802.11 WME resource management

CVSS Meta Temp Score
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CTI Interest Score
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5.3$0-$5k0.00

Summaryinfo

A vulnerability marked as problematic has been reported in Cisco Wireless LAN Controller. This vulnerability affects unknown code of the component 802.11 WME. This manipulation causes resource management. This vulnerability is registered as CVE-2016-9194. The attack requires access to the local network. No exploit is available. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability has been found in Cisco Wireless LAN Controller (Wireless LAN Software) and classified as problematic. Affected by this vulnerability is an unknown code of the component 802.11 WME. The manipulation with an unknown input leads to a resource management vulnerability. The CWE definition for the vulnerability is CWE-399. As an impact it is known to affect availability. The summary by CVE is:

A vulnerability in 802.11 Wireless Multimedia Extensions (WME) action frame processing in Cisco Wireless LAN Controller (WLC) Software could allow an unauthenticated, adjacent attacker to cause a denial of service (DoS) condition. The vulnerability is due to incomplete input validation of the 802.11 WME packet header. An attacker could exploit this vulnerability by sending malformed 802.11 WME frames to a targeted device. A successful exploit could allow the attacker to cause the WLC to reload unexpectedly. The fixed versions are 8.0.140.0, 8.2.130.0, and 8.3.111.0. Cisco Bug IDs: CSCva86353.

The bug was discovered 04/05/2017. The weakness was published 04/06/2017 with Cisco as cisco-sa-20170405-wlc as confirmed advisory (Website). It is possible to read the advisory at tools.cisco.com. This vulnerability is known as CVE-2016-9194 since 11/06/2016. The attack needs to be initiated within the local network. The exploitation doesn't need any form of authentication. The technical details are unknown and an exploit is not publicly available.

The vulnerability scanner Nessus provides a plugin with the ID 99471 (Cisco Wireless LAN Controller 802.11 WME Packet Header Handling DoS (cisco-sa-20170405-wlc)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family CISCO and running in the context c. The commercial vulnerability scanner Qualys is able to test this issue with plugin 316339 (Cisco Wireless LAN Controller 802.11 WME Denial of Service Vulnerability(cisco-sa-20170405-wlc)).

Upgrading to version 8.0.140.0, 8.2.130.0 or 8.3.111.0 eliminates this vulnerability. A possible mitigation has been published before and not just after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at Tenable (99471) and SecurityFocus (BID 97424†). Similar entries are available at VDB-99357 and VDB-99356. Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.4
VulDB Meta Temp Score: 5.3

VulDB Base Score: 4.3
VulDB Temp Score: 4.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 6.5
NVD Vector: 🔍

CVSSv2info

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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
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NVD Base Score: 🔍

Exploitinginfo

Class: Resource management
CWE: CWE-399 / CWE-404
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Partially

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 99471
Nessus Name: Cisco Wireless LAN Controller 802.11 WME Packet Header Handling DoS (cisco-sa-20170405-wlc)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 803167
OpenVAS Name: Cisco Wireless LAN Controller 802.11 WME Denial of Service Vulnerability
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: Wireless LAN Controller 8.0.140.0/8.2.130.0/8.3.111.0

Timelineinfo

11/06/2016 🔍
04/05/2017 +150 days 🔍
04/05/2017 +0 days 🔍
04/05/2017 +0 days 🔍
04/06/2017 +1 days 🔍
04/06/2017 +0 days 🔍
04/07/2017 +1 days 🔍
04/19/2017 +12 days 🔍
11/27/2022 +2048 days 🔍

Sourcesinfo

Vendor: cisco.com

Advisory: cisco-sa-20170405-wlc
Organization: Cisco
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2016-9194 (🔍)
GCVE (CVE): GCVE-0-2016-9194
GCVE (VulDB): GCVE-100-99355
SecurityFocus: 97424 - Cisco Wireless LAN Controller CVE-2016-9194 Denial of Service Vulnerability
OSVDB: - CVE-2016-9194 - Cisco - WLC - Denial of Service Issue
SecurityTracker: 1038182

See also: 🔍

Entryinfo

Created: 04/07/2017 09:07
Updated: 11/27/2022 09:23
Changes: 04/07/2017 09:07 (75), 08/26/2020 14:55 (7), 11/27/2022 09:23 (4)
Complete: 🔍
Cache ID: 216::103

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