Instituto Nacional de ciberseguridad. Sección Incibe
Instituto Nacional de Ciberseguridad. Sección INCIBE-CERT

Go to Calendar     Go to Press Room     Go to Newsletters subscription

Search

CVE-2020-3512

Severity CVSS v4.0:
Pending analysis
Type:
CWE-400 Uncontrolled Resource Consumption ('Resource Exhaustion')
Publication date:
24/09/2020
Last modified:
08/10/2020

Description

A vulnerability in the PROFINET handler for Link Layer Discovery Protocol (LLDP) messages of Cisco IOS Software and Cisco IOS XE Software could allow an unauthenticated, adjacent attacker to cause a crash on an affected device, resulting in a denial of service (DoS) condition. The vulnerability is due to insufficient validation of LLDP messages in the PROFINET LLDP message handler. An attacker could exploit this vulnerability by sending a malicious LLDP message to an affected device. A successful exploit could allow the attacker to cause the affected device to reload.

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:M/Au:N/C:N/I:N/A:C CVSS v2.0 Severity and Metrics:

Base Score: 5.70 MEDIUM
Vector: AV:A/AC:M/Au:N/C:N/I:N/A:C

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

Base Score 2.0
5.70
Severity 2.0
MEDIUM

Vulnerable products and versions

CPE From Up to
cpe:2.3:o:cisco:ios_xe:15.2\(7\)e:*:*:*:*:*:*:*
cpe:2.3:h:cisco:catalyst_3650-12x48uq:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:catalyst_3650-12x48ur:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:catalyst_3650-12x48uz:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:catalyst_3650-24pd:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:catalyst_3650-24pdm:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:catalyst_3650-48fqm:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:catalyst_3650-8x24uq:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:catalyst_3850-24xs:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:catalyst_3850-48xs:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:catalyst_3850-nm-2-40g:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:catalyst_3850-nm-8-10g:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:catalyst_c9200-24p:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:catalyst_c9200-24t:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:catalyst_c9200-48p:-:*:*:*:*:*:*:*

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


References to Advisories, Solutions, and Tools