Cisco NX-OS on Nexus 5500/Nexus 5600/Nexus 6000 Precision Time Protocol input validation
CVSS Meta Temp Score | Current Exploit Price (≈) | CTI Interest Score |
---|---|---|
6.9 | $5k-$25k | 0.00 |
A vulnerability classified as problematic was found in Cisco NX-OS on Nexus 5500/Nexus 5600/Nexus 6000 (Router Operating System) (unknown version). This vulnerability affects an unknown code block of the component Precision Time Protocol. The manipulation with an unknown input leads to a input validation vulnerability. The CWE definition for the vulnerability is CWE-20. The product receives input or data, but it does
not validate or incorrectly validates that the input has the
properties that are required to process the data safely and
correctly. As an impact it is known to affect availability. CVE summarizes:
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.
The bug was discovered 10/17/2018. The weakness was shared 10/17/2018 with Cisco as cisco-sa-20181017-nexus-ptp-do as confirmed advisory (Website). The advisory is shared for download at tools.cisco.com. This vulnerability was named CVE-2018-0378 since 11/26/2017. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. There are neither technical details nor an exploit publicly available. The current price for an exploit might be approx. USD $5k-$25k (estimation calculated on 05/30/2023).
There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.
The entries VDB-193655, VDB-193657, VDB-193658 and VDB-207285 are related to this item.
Product
Type
Vendor
Name
License
CPE 2.3
CPE 2.2
CVSSv4
VulDB CVSS-B Score: 🔍VulDB CVSS-BT Score: 🔍
VulDB Vector: 🔍
VulDB Reliability: 🔍
CVSSv3
VulDB Meta Base Score: 6.9VulDB Meta Temp Score: 6.9
VulDB Base Score: 5.3
VulDB Temp Score: 5.3
VulDB Vector: 🔍
VulDB Reliability: 🔍
NVD Base Score: 8.6
NVD Vector: 🔍
CVSSv2
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Vector | Complexity | Authentication | Confidentiality | Integrity | Availability |
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unlock | unlock | unlock | unlock | unlock | unlock |
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍
NVD Base Score: 🔍
Exploiting
Class: Input validationCWE: CWE-20
CAPEC: 🔍
ATT&CK: 🔍
Local: No
Remote: Yes
Availability: 🔍
Status: Not defined
EPSS Score: 🔍
EPSS Percentile: 🔍
Price Prediction: 🔍
Current Price Estimation: 🔍
0-Day | unlock | unlock | unlock | unlock |
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Today | unlock | unlock | unlock | unlock |
Threat Intelligence
Interest: 🔍Active Actors: 🔍
Active APT Groups: 🔍
Countermeasures
Recommended: no mitigation knownStatus: 🔍
0-Day Time: 🔍
Timeline
11/26/2017 🔍10/17/2018 🔍
10/17/2018 🔍
10/17/2018 🔍
10/17/2018 🔍
10/18/2018 🔍
05/30/2023 🔍
Sources
Vendor: cisco.comAdvisory: cisco-sa-20181017-nexus-ptp-do
Organization: Cisco
Status: Confirmed
CVE: CVE-2018-0378 (🔍)
SecurityTracker: 1041920
SecurityFocus: 105669 - Cisco NX-OS Software Precision Time Protocol CVE-2018-0378 Remote Denial of Service Vulnerability
See also: 🔍
Entry
Created: 10/18/2018 06:44Updated: 05/30/2023 08:27
Changes: 10/18/2018 06:44 (60), 06/06/2020 20:32 (4), 05/30/2023 08:27 (3)
Complete: 🔍
Cache ID: 18:409:103
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