Instituto Nacional de ciberseguridad. Sección Incibe
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CVE-2018-0442

Severity CVSS v4.0:
Pending analysis
Type:
Unavailable / Other
Publication date:
17/10/2018
Last modified:
22/10/2020

Description

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.

Impact

Vector 3.x
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N CVSS v3.1 Severity and Metrics:

Base Score: 7.50 HIGH
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): None
Scope (S): Unchanged
Confidentiality (C): High
Integrity (I): None
Availability (A): None

Base Score 3.x
7.50
Severity 3.x
HIGH
Vector 2.0
AV:N/AC:L/Au:N/C:P/I:N/A:N CVSS v2.0 Severity and Metrics:

Base Score: 5.00 MEDIUM
Vector: AV:N/AC:L/Au:N/C:P/I:N/A:N

Attack Vector (AV): Network
Attack Complexity (AC): Low
Authentication (Au): None
Confidentiality (C): Physical
Integrity (I): None
Availability (A): None

Base Score 2.0
5.00
Severity 2.0
MEDIUM

Vulnerable products and versions

CPE From Up to
cpe:2.3:o:cisco:wireless_lan_controller_software:*:*:*:*:*:*:*:* 8.2.170.0 (excluding)
cpe:2.3:o:cisco:wireless_lan_controller_software:*:*:*:*:*:*:*:* 8.3 (including) 8.3.140.0 (excluding)
cpe:2.3:o:cisco:wireless_lan_controller_software:*:*:*:*:*:*:*:* 8.4 (including) 8.5.110.0 (excluding)
cpe:2.3:o:cisco:wireless_lan_controller_software:*:*:*:*:*:*:*:* 8.6 (including) 8.6.101.0 (excluding)
cpe:2.3:o:cisco:wireless_lan_controller_software:*:*:*:*:*:*:*:* 8.7 (including) 8.7.102.0 (excluding)

To consult the complete list of CPE names with products and versions, see this page


References to Advisories, Solutions, and Tools