Instituto Nacional de ciberseguridad. Sección Incibe
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CVE-2020-3351

Severity CVSS v4.0:
Pending analysis
Type:
CWE-400 Uncontrolled Resource Consumption ('Resource Exhaustion')
Publication date:
16/07/2020
Last modified:
23/07/2020

Description

A vulnerability in Cisco SD-WAN Solution Software could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition. The vulnerability is due to improper validation of fields in Cisco SD-WAN peering messages that are encapsulated in UDP packets. An attacker could exploit this vulnerability by sending crafted UDP messages to the targeted system. A successful exploit could allow the attacker to cause services on the device to fail, resulting in a DoS condition that could impact the targeted device and other devices that depend on it.

Impact

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

Base Score: 8.60 HIGH
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H

Attack Vector (AV): Network
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
8.60
Severity 3.x
HIGH
Vector 2.0
AV:N/AC:L/Au:N/C:N/I:N/A:C CVSS v2.0 Severity and Metrics:

Base Score: 7.80 HIGH
Vector: AV:N/AC:L/Au:N/C:N/I:N/A:C

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

Base Score 2.0
7.80
Severity 2.0
HIGH

Vulnerable products and versions

CPE From Up to
cpe:2.3:o:cisco:sd-wan_firmware:*:*:*:*:*:*:*:* 17.2.7 (excluding)
cpe:2.3:o:cisco:sd-wan_firmware:*:*:*:*:*:*:*:* 17.2.8 (including) 18.3.0 (excluding)
cpe:2.3:h:cisco:vedge_100:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:vedge_1000:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:vedge_100b:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:vedge_100m:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:vedge_100wm:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:vedge_2000:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:vedge_5000:-:*:*:*:*:*:*:*
cpe:2.3:a:cisco:vedge_cloud_router:-:*:*:*:*:*:*:*
cpe:2.3:a:cisco:vsmart_controller:-:*:*:*:*:*:*:*

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


References to Advisories, Solutions, and Tools