Detections
Analytics
Cisco Nexus 5600 and 6000 Series Switches Fibre Channel over Ethernet Denial of Service Vulnerability
medium Nessus Plugin ID 125775
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Synopsis
The remote device is missing a vendor-supplied security patchDescription
According to its self-reported version, Cisco NX-OS Software is affected by a vulnerability in the Fibre Channel over Ethernet (FCoE) protocol implementation in Cisco NX-OS Software could allow an unauthenticated, adjacent attacker to cause a denial of service (DoS) condition on an affected device. The vulnerability is due to an incorrect allocation of an internal interface index. An adjacent attacker with the ability to submit a crafted FCoE packet that crosses affected interfaces could trigger this vulnerability. A successful exploit could allow the attacker to cause a packet loop and high throughput on the affected interfaces, resulting in a DoS condition.Please see the included Cisco BIDs and Cisco Security Advisory for more information
Solution
Upgrade to the relevant fixed version referenced in Cisco bug ID CSCvn24414See Also
Plugin Details
Severity: Medium
ID: 125775
File Name: cisco-sa-20190306-nexus-fbr-dos.nasl
Version: 1.6
Type: combined
Family: CISCO
Published: 6/7/2019
Updated: 12/20/2019
Configuration: Enable paranoid mode
Supported Sensors: Nessus
Risk Information
VPR
Risk Factor: Low
Score: 3.6
CVSS v2
Risk Factor: Medium
Base Score: 6.1
Temporal Score: 4.5
Vector: CVSS2#AV:A/AC:L/Au:N/C:N/I:N/A:C
CVSS Score Source: CVE-2019-1595
CVSS v3
Risk Factor: Medium
Base Score: 6.5
Temporal Score: 5.7
Vector: CVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C
Vulnerability Information
CPE: cpe:/o:cisco:nx-os
Required KB Items: Host/Cisco/NX-OS/Version, Host/Cisco/NX-OS/Model, Settings/ParanoidReport
Exploit Ease: No known exploits are available
Patch Publication Date: 3/6/2019
Vulnerability Publication Date: 3/6/2019
Reference Information
CVE: CVE-2019-1595