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-2018-0378

Severity CVSS v4.0:
Pending analysis
Type:
CWE-20 Input Validation
Publication date:
17/10/2018
Last modified:
09/10/2019

Description

A vulnerability in the Precision Time Protocol (PTP) feature of Cisco Nexus 5500, 5600, and 6000 Series Switches running Cisco NX-OS Software could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on an affected device. The vulnerability is due to a lack of protection against PTP frame flood attacks. An attacker could exploit this vulnerability by sending large streams of malicious IPv4 or IPv6 PTP traffic to the affected device. A successful exploit could allow the attacker to cause a DoS condition, impacting the traffic passing through the device.

Impact

Vector 3.x
CVSS:3.0/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:3.0/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:nx-os:7.3\(2\)n1\(0.8\):*:*:*:*:*:*:*
cpe:2.3:h:cisco:nexus_5548p:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:nexus_5548up:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:nexus_5596t:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:nexus_5596up:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:nexus_56128p:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:nexus_5624q:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:nexus_5648q:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:nexus_5672up:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:nexus_5672up-16g:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:nexus_5696q:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:nexus_6001:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:nexus_6004:-:*:*:*:*:*:*:*

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


References to Advisories, Solutions, and Tools