Description

A vulnerability in the Fibre Channel over Ethernet (FCoE) N-port Virtualization (NPV) protocol implementation in Cisco NX-OS Software could allow an unauthenticated, adjacent attacker to cause a denial of service (DoS) condition. The vulnerability is due to an incorrect processing of FCoE packets when the fcoe-npv feature is uninstalled. An attacker could exploit this vulnerability by sending a stream of FCoE frames from an adjacent host to an affected device. An exploit could allow the attacker to cause packet amplification to occur, resulting in the saturation of interfaces and a DoS condition. Nexus 9000 Series Switches in Standalone NX-OS Mode are affected running software versions prior to 7.0(3)I7(5) and 9.2(2).

INFO

Published Date :

March 11, 2019, 9:29 p.m.

Last Modified :

Nov. 21, 2024, 4:36 a.m.

Remotely Exploitable :

No

Impact Score :

4.0

Exploitability Score :

2.8
Affected Products

The following products are affected by CVE-2019-1617 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

ID Vendor Product Action
1 Cisco nx-os
2 Cisco nx-os
3 Cisco n9k-c92160yc-x
4 Cisco n9k-c9236c
5 Cisco n9k-c9272q
6 Cisco n9k-c93180lc-ex
7 Cisco n9k-c93180yc-ex
8 Cisco n9k-c93180yc-fx
9 Cisco n9k-x9732c-ex
10 Cisco n9k-x9736c-fx
References to Advisories, Solutions, and Tools

Here, you will find a curated list of external links that provide in-depth information, practical solutions, and valuable tools related to CVE-2019-1617.

URL Resource
http://www.securityfocus.com/bid/107336 Third Party Advisory VDB Entry
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190306-nxos-npv-dos Exploit Vendor Advisory
http://www.securityfocus.com/bid/107336 Third Party Advisory VDB Entry
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190306-nxos-npv-dos Exploit Vendor Advisory

We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2019-1617 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2019-1617 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.

  • CVE Modified by af854a3a-2127-422b-91ae-364da2661108

    Nov. 21, 2024

    Action Type Old Value New Value
    Added Reference http://www.securityfocus.com/bid/107336
    Added Reference https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190306-nxos-npv-dos
  • CVE Modified by [email protected]

    May. 14, 2024

    Action Type Old Value New Value
  • CVE Modified by [email protected]

    Oct. 09, 2019

    Action Type Old Value New Value
    Added CVSS V3 Cisco Systems, Inc. AV:A/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H
    Added CWE Cisco Systems, Inc. CWE-913
  • Initial Analysis by [email protected]

    Mar. 13, 2019

    Action Type Old Value New Value
    Added CVSS V2 (AV:A/AC:L/Au:N/C:N/I:N/A:C)
    Added CVSS V3 AV:A/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H
    Changed Reference Type http://www.securityfocus.com/bid/107336 No Types Assigned http://www.securityfocus.com/bid/107336 Third Party Advisory, VDB Entry
    Changed Reference Type https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190306-nxos-npv-dos No Types Assigned https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190306-nxos-npv-dos Exploit, Vendor Advisory
    Added CWE CWE-913
    Added CPE Configuration AND OR *cpe:2.3:o:cisco:nx-os:*:*:*:*:*:*:*:* versions from (including) 9.2 up to (excluding) 9.2\(2\) OR cpe:2.3:h:cisco:n9k-c92160yc-x:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:n9k-c9236c:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:n9k-c9272q:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:n9k-c93180lc-ex:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:n9k-c93180yc-ex:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:n9k-c93180yc-fx:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:n9k-x9732c-ex:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:n9k-x9736c-fx:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:cisco:nx-os:*:*:*:*:*:*:*:* versions from (including) 7.0\(3\)i5 up to (excluding) 7.0\(3\)i7\(5\) OR cpe:2.3:h:cisco:n9k-c92160yc-x:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:n9k-c9236c:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:n9k-c9272q:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:n9k-c93180lc-ex:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:n9k-c93180yc-ex:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:n9k-c93180yc-fx:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:n9k-x9732c-ex:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:n9k-x9736c-fx:-:*:*:*:*:*:*:*
  • CVE Modified by [email protected]

    Mar. 12, 2019

    Action Type Old Value New Value
    Added Reference http://www.securityfocus.com/bid/107336 [No Types Assigned]
  • CVE Modified by [email protected]

    Mar. 11, 2019

    Action Type Old Value New Value
    Changed Description A vulnerability in the Fibre Channel over Ethernet (FCoE) N-port Virtualization (NPV) protocol implementation in Cisco NX-OS Software could allow an unauthenticated, adjacent attacker to cause a denial of service (DoS) condition. The vulnerability is due to an incorrect processing of FCoE packets when the fcoe-npv feature is uninstalled. An attacker could exploit this vulnerability by sending a stream of FCoE frames from an adjacent host to an affected device. An exploit could allow the attacker to cause packet amplification to occur, resulting in the saturation of interfaces and a DoS condition. Nexus 9000 Series Switches in Standalone NX-OS Mode are affected running software versions prior to 7.0(3)I7(5) and 9.2(2). A vulnerability in the Fibre Channel over Ethernet (FCoE) N-port Virtualization (NPV) protocol implementation in Cisco NX-OS Software could allow an unauthenticated, adjacent attacker to cause a denial of service (DoS) condition. The vulnerability is due to an incorrect processing of FCoE packets when the fcoe-npv feature is uninstalled. An attacker could exploit this vulnerability by sending a stream of FCoE frames from an adjacent host to an affected device. An exploit could allow the attacker to cause packet amplification to occur, resulting in the saturation of interfaces and a DoS condition. Nexus 9000 Series Switches in Standalone NX-OS Mode are affected running software versions prior to 7.0(3)I7(5) and 9.2(2).
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2019-1617 is associated with the following CWEs:

Common Attack Pattern Enumeration and Classification (CAPEC)

Common Attack Pattern Enumeration and Classification (CAPEC) stores attack patterns, which are descriptions of the common attributes and approaches employed by adversaries to exploit the CVE-2019-1617 weaknesses.

Exploit Prediction

EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.

0.27 }} 0.14%

score

0.67299

percentile

CVSS30 - Vulnerability Scoring System
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability