CVE-2018-0442
Published: 2018-10-17
Last Modified: 2020-10-22
CVE Author: NIST National Vulnerability Database
CVE Assigner: psirt@cisco.com
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 retrieve memory contents, which could lead to the disclosure of confidential information. The vulnerability is due to insufficient condition checks in the part of the code that handles CAPWAP keepalive requests. An attacker could exploit this vulnerability by sending a crafted CAPWAP keepalive packet to a vulnerable Cisco WLC device. A successful exploit could allow the attacker to retrieve the contents of device memory, which could lead to the disclosure of confidential information.
| Severity | Medium |
| Base Score | 5/10 |
| Exploit Score | 10/10 |
| Access Vector | Network |
| Access Complexity | Low |
| Authentication | None |
| Impact Score | 2.9/10 |
| Confidentiality Impact | Partial |
| Availability Impact | None |
| Integrity Impact | None |
| Vector String | AV:N/AC:L/Au:N/C:P/I:N/A:N |
| Severity | High |
| Base Score | 7.5/10 |
| Exploit Score | 3.9/10 |
| Access Vector | Network |
| Access Complexity | Low |
| Privileges Required | None |
| Impact Score | 3.6/10 |
| Confidentiality Impact | High |
| Availability Impact | None |
| Integrity Impact | None |
| Scope | Unchanged |
| User Interaction | None |
| Vector String | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N |
| CPE | Vulnerable | Start | Excluding |
|---|---|---|---|
| cpe:2.3:o:cisco:wireless_lan_controller_software:*:*:*:*:*:* | Yes | - | 8.2.170.0 |
| cpe:2.3:o:cisco:wireless_lan_controller_software:*:*:*:*:*:* | Yes | 8.6 | 8.6.101.0 |
| cpe:2.3:o:cisco:wireless_lan_controller_software:*:*:*:*:*:* | Yes | 8.4 | 8.5.110.0 |
| cpe:2.3:o:cisco:wireless_lan_controller_software:*:*:*:*:*:* | Yes | 8.3 | 8.3.140.0 |
| cpe:2.3:o:cisco:wireless_lan_controller_software:*:*:*:*:*:* | Yes | 8.7 | 8.7.102.0 |
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20181017-
http://www.securitytracker.com/id/1041923
http://www.securityfocus.com/bid/105664
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