CVSS Meta Temp Score CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.	Current Exploit Price (≈) Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.	CTI Interest Score Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
6.3	$0-$5k	0.00

A vulnerability was found in Cisco Wireless LAN Controller 8.2.121.0/8.3.102.0 (Wireless LAN Software) and classified as problematic. Affected by this issue is an unknown code block of the component IPv6 UDP Ingress Handler. The manipulation with an unknown input leads to a input validation vulnerability. Using CWE to declare the problem leads to CWE-20. The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly. Impacted is availability. CVE summarizes:

A vulnerability with IPv6 UDP ingress packet processing in Cisco Wireless LAN Controller (WLC) Software could allow an unauthenticated, remote attacker to cause an unexpected reload of the device. The vulnerability is due to incomplete IPv6 UDP header validation. An attacker could exploit this vulnerability by sending a crafted IPv6 UDP packet to a specific port on the targeted device. An exploit could allow the attacker to impact the availability of the device as it could unexpectedly reload. This vulnerability affects Cisco Wireless LAN Controller (WLC) running software version 8.2.121.0 or 8.3.102.0. Cisco Bug IDs: CSCva98592.

The bug was discovered 04/05/2017. The weakness was released 04/06/2017 with Cisco as cisco-sa-20170405-wlc2 as confirmed advisory (Website). The advisory is shared for download at tools.cisco.com. This vulnerability is handled as CVE-2016-9219 since 11/06/2016. The attack may be launched remotely. No form of authentication is required for exploitation. There are neither technical details nor an exploit publicly available.

The vulnerability scanner Nessus provides a plugin with the ID 99473 (Cisco Wireless LAN Controller IPv6 UDP Packet Handling DoS (cisco-sa-20170405-wlc2)), 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 38675 (Cisco Wireless LAN Controller IPv6 UDP Denial of Service Vulnerability (cisco-sa-20170405-wlc2)).

Upgrading 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 vulnerability database at Tenable (99473). Entries connected to this vulnerability are available at 99357 and 99355.

Productinfo

Type

• Wireless LAN Software

Vendor

• Cisco

Name

• Wireless LAN Controller

Version

• 8.2.121.0
• 8.3.102.0

License

• commercial

Support

• end of life (old version)

CPE 2.3info

• 🔍
• 🔍

CPE 2.2info

• 🔍
• 🔍

CVSSv4info

VulDB CVSS-B Score: 🔍
VulDB CVSS-BT Score: 🔍
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.4
VulDB Meta Temp Score: 6.3

VulDB Base Score: 5.3
VulDB Temp Score: 5.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.5
NVD Vector: 🔍

CVSSv2info

AV	AC	Au	C	I	A
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳

Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
unlock	unlock	unlock	unlock	unlock	unlock
unlock	unlock	unlock	unlock	unlock	unlock
unlock	unlock	unlock	unlock	unlock	unlock

VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Input validation
CWE: CWE-20
CAPEC: 🔍
ATT&CK: 🔍

Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-Day	unlock	unlock	unlock	unlock
Today	unlock	unlock	unlock	unlock

Nessus ID: 99473
Nessus Name: Cisco Wireless LAN Controller IPv6 UDP Packet Handling DoS (cisco-sa-20170405-wlc2)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 803167
OpenVAS Name: Cisco Wireless LAN Controller IPv6 UDP 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: 🔍

Timelineinfo

11/06/2016 🔍
04/04/2017 +149 days 🔍
04/05/2017 +1 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-wlc2
Organization: Cisco
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2016-9219 (🔍)
SecurityTracker: 1038183
SecurityFocus: 97423 - Cisco Wireless LAN Controller CVE-2016-9219 Denial of Service Vulnerability
OSVDB: - CVE-2016-9219 - Cisco - WLC - Denial of Service Issue

See also: 🔍

Entryinfo

Created: 04/07/2017 09:07
Updated: 11/27/2022 09:25
Changes: 04/07/2017 09:07 (74), 08/26/2020 15:02 (8), 11/27/2022 09:25 (4)
Complete: 🔍

Discussion

Do you want to use VulDB in your project?

Use the official API to access entries easily!