Vulnerability Monitor

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CVE-2019-1617

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).

Published

2019-03-11T21:29:01.027

Last Modified

2024-11-21T04:36:56.387

Status

Modified

Source

[email protected]

Severity

CVSSv3.0: 7.4 (HIGH)

CVSSv2 Vector

AV:A/AC:L/Au:N/C:N/I:N/A:C

  • Access Vector: ADJACENT_NETWORK
  • Access Complexity: LOW
  • Authentication: NONE
  • Confidentiality Impact: NONE
  • Integrity Impact: NONE
  • Availability Impact: COMPLETE
Exploitability Score

6.5

Impact Score

6.9

Weaknesses
  • Type: Secondary
    CWE-913
  • Type: Primary
    CWE-913
Affected Vendors & Products
Type Vendor Product Version/Range Vulnerable?
Operating System cisco nx-os < 9.2\(2\) Yes
Hardware cisco n9k-c92160yc-x - No
Hardware cisco n9k-c9236c - No
Hardware cisco n9k-c9272q - No
Hardware cisco n9k-c93180lc-ex - No
Hardware cisco n9k-c93180yc-ex - No
Hardware cisco n9k-c93180yc-fx - No
Hardware cisco n9k-x9732c-ex - No
Hardware cisco n9k-x9736c-fx - No
Operating System cisco nx-os < 7.0\(3\)i7\(5\) Yes
Hardware cisco n9k-c92160yc-x - No
Hardware cisco n9k-c9236c - No
Hardware cisco n9k-c9272q - No
Hardware cisco n9k-c93180lc-ex - No
Hardware cisco n9k-c93180yc-ex - No
Hardware cisco n9k-c93180yc-fx - No
Hardware cisco n9k-x9732c-ex - No
Hardware cisco n9k-x9736c-fx - No
References