Cisco MDS 9000 VRRP DoS (CSCte27874)

medium Nessus Plugin ID 78557

Synopsis

The remote device is missing a vendor-supplied security patch.

Description

The remote host is an MDS 9000 series router. It is, therefore, vulnerable to a denial of service vulnerability. A flaw with Virtual Router Redundancy Protocol (VRRP) frame handling allows a remote attacker, using a specially crafted VRRP frame with an Authentication Header (AH), to cause the device to have high CPU utilization and force a restart of the device.

Solution

Apply the patch referenced in Cisco bug ID CSCte27874.

See Also

http://www.nessus.org/u?ec5d4ba1

https://tools.cisco.com/security/center/viewAlert.x?alertId=31663

Plugin Details

Severity: Medium

ID: 78557

File Name: cisco-sn-CSCte27874-nxos.nasl

Version: 1.8

Type: combined

Family: CISCO

Published: 10/17/2014

Updated: 10/29/2019

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: Low

Score: 3.6

CVSS v2

Risk Factor: Medium

Base Score: 5

Temporal Score: 3.7

Vector: CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:P

Vulnerability Information

CPE: cpe:/o:cisco:nx-os

Required KB Items: Host/Cisco/NX-OS/Version, Host/Cisco/NX-OS/Model, Host/Cisco/NX-OS/Device

Exploit Ease: No known exploits are available

Patch Publication Date: 11/6/2013

Vulnerability Publication Date: 11/6/2013

Reference Information

CVE: CVE-2013-5566

BID: 63564

CISCO-BUG-ID: CSCte27874