Vulnerability Details : CVE-2018-0443
A vulnerability in the Control and Provisioning of Wireless Access Points (CAPWAP) protocol component of Cisco Wireless LAN Controller (WLC) Software could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition. The vulnerability is due to improper input validation on fields within CAPWAP Discovery Request packets by the affected device. An attacker could exploit this vulnerability by sending malicious CAPWAP Discovery Request packets to the Cisco WLC Software. A successful exploit could allow the attacker to cause the Cisco WLC Software to disconnect associated access points (APs). While the APs disconnect and reconnect, service will be unavailable for a brief period of time, resulting in a DoS condition.
Vulnerability category: Input validationDenial of service
Products affected by CVE-2018-0443
- cpe:2.3:o:cisco:wireless_lan_controller_software:8.2\(151.0\):*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2018-0443
1.29%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 78 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2018-0443
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
5.0
|
MEDIUM | AV:N/AC:L/Au:N/C:N/I:N/A:P |
10.0
|
2.9
|
NIST | |
|
8.6
|
HIGH | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H |
3.9
|
4.0
|
Cisco Systems, Inc. | |
|
7.5
|
HIGH | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
3.9
|
3.6
|
NIST |
CWE ids for CVE-2018-0443
-
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.Assigned by: nvd@nist.gov (Primary)
-
Assigned by: ykramarz@cisco.com (Secondary)
References for CVE-2018-0443
-
http://www.securitytracker.com/id/1041922
Cisco Wireless LAN Controller CAPWAP Discovery Request Processing Lets Remote Users Cause the Target Service to Disconnect and Reconnect - SecurityTrackerThird Party Advisory;VDB Entry
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http://www.securityfocus.com/bid/105686
Cisco Wireless LAN Controller CVE-2018-0443 Denial of Service VulnerabilityThird Party Advisory;VDB Entry
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https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20181017-wlc-capwap-dos
Cisco Wireless LAN Controller Software Control and Provisioning of Wireless Access Points Protocol Denial of Service VulnerabilityVendor Advisory
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