CVE-2018-0378
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.
Published : 2018-10-17 21:49 Updated : 2019-10-09 23:31
CVSS Score
More info
Score 7.8 / 10
A vulnerability exploitable with network access means the vulnerable software is bound to the network stack and the attacker does not require local network access or local access. Such a vulnerability is often termed "remotely exploitable". An example of a network attack is an RPC buffer overflow.
Specialized access conditions or extenuating circumstances do not exist. The following are examples:
- The affected product typically requires access to a wide range of systems and users, possibly anonymous and untrusted (e.g., Internet-facing web or mail server).
- The affected configuration is default or ubiquitous.
- The attack can be performed manually and requires little skill or additional information gathering.
- The race condition is a lazy one (i.e., it is technically a race but easily winnable).
Authentication is not required to exploit the vulnerability.
There is no impact to the confidentiality of the system.
There is no impact to the integrity of the system.
There is a total shutdown of the affected resource. The attacker can render the resource completely unavailable.
| Vendor | Product | Version | URI |
|---|---|---|---|
| Cisco | Nx-os | 7.3%282%29n1%280.8%29 | cpe:/o:cisco:nx-os:7.3%282%29n1%280.8%29 |
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7.3%282%29n1%280.8%29
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History of changes
| Date | Event | ||||||
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| 2019-02-15 21:57 |
3 changed
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| 2018-10-19 10:29 | |||||||
| 2018-10-17 21:49 |
New CVE |