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CVE-2020-3552

Severity CVSS v4.0:
Pending analysis
Type:
CWE-476 NULL Pointer Dereference
Publication date:
24/09/2020
Last modified:
16/04/2021

Description

A vulnerability in the Ethernet packet handling of Cisco Aironet Access Points (APs) Software could allow an unauthenticated, adjacent attacker to cause a denial of service (DoS) condition on an affected device. The vulnerability is due to insufficient input validation. An attacker could exploit this vulnerability by connecting as a wired client to the Ethernet interface of an affected device and sending a series of specific packets within a short time frame. A successful exploit could allow the attacker to cause a NULL pointer access that results in a reload of the affected device.

Impact

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

Base Score: 7.40 HIGH
Vector: CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H

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

Base Score 3.x
7.40
Severity 3.x
HIGH
Vector 2.0
AV:A/AC:L/Au:N/C:N/I:N/A:C CVSS v2.0 Severity and Metrics:

Base Score: 6.10 MEDIUM
Vector: AV:A/AC:L/Au:N/C:N/I:N/A:C

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

Base Score 2.0
6.10
Severity 2.0
MEDIUM

Vulnerable products and versions

CPE From Up to
cpe:2.3:o:cisco:wireless_lan_controller:*:*:*:*:*:*:*:* 8.6 (including) 8.10.105.0 (excluding)
cpe:2.3:h:cisco:aironet_1542d:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:aironet_1542i:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:aironet_1562d:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:aironet_1562e:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:aironet_1562i:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:aironet_1810:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:aironet_1815:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:aironet_1830e:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:aironet_1830i:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:aironet_1840:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:aironet_1850e:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:aironet_1850i:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:aironet_2800e:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:aironet_2800i:-:*:*:*:*:*:*:*

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


References to Advisories, Solutions, and Tools