PT-2018-1741 · Cisco · Cisco Nexus 5600+4

Published 2018-10-17 · Updated 2019-10-09 · CVE-2018-0378

Positive Technologies (AI Summary)

CVSS v3.1

8.6

High

Base vector

AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H

Name of the Vulnerable Software and Affected Versions Cisco Nexus 5500, 5600, and 6000 Series Switches running Cisco NX-OS Software (affected versions not specified)

Description A vulnerability in the Precision Time Protocol (PTP) feature 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.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

DoS

RCE

Weakness Enumeration

CWE-20

Related Identifiers

BDU:2018-01341

CVE-2018-0378

Affected Products

Cisco Nx-Os

Cisco Nexus

Cisco Nexus 5500

Cisco Nexus 5600

Cisco Nexus 6000

References · 6

• https://nvd.nist.gov/vuln/detail/CVE-2018-0378 · Security Note
• https://osv.dev/vulnerability/CVE-2018-0378 · Vendor Advisory
• https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20181017-nexus-ptp-dos · Vendor Advisory
• https://bdu.fstec.ru/vul/2018-01341 · Security Note
• http://securitytracker.com/id/1041920 · Note
• http://securityfocus.com/bid/105669 · Note