Cisco IOS XR NCS 6000 Packet Timer Leak DoS (cisco-sa-20160713-ncs6k)

high Nessus Plugin ID 93563

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Synopsis

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

Description

The version of Cisco IOS XR running on the remote NCS 6000 device is affected by a denial of service vulnerability due to improper management of system timer resources. An unauthenticated, remote attacker can exploit this, via numerous management connections to the affected device, to consume resources, resulting in a nonoperational state and eventual reload of the Route Processor.

Solution

Upgrade to the relevant fixed version referenced in Cisco advisory cisco-sa-20160713-ncs6k.

Plugin Details

Severity: High

ID: 93563

File Name: cisco-sa-20160713-ncs6k-iosxr.nasl

Version: 1.8

Type: combined

Family: CISCO

Published: 9/16/2016

Updated: 4/8/2021

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: Low

Score: 3.6

CVSS v2

Risk Factor: High

Base Score: 7.8

Temporal Score: 5.8

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

CVSS Score Source: CVE-2016-1426

CVSS v3

Risk Factor: High

Base Score: 7.5

Temporal Score: 6.5

Vector: CVSS:3.0/AV:N/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:ios_xr

Required KB Items: Host/Cisco/IOS-XR/Version

Exploit Ease: No known exploits are available

Patch Publication Date: 7/13/2016

Vulnerability Publication Date: 7/13/2016

Reference Information

CVE: CVE-2016-1426

BID: 91748

CISCO-SA: cisco-sa-20160713-ncs6k

CISCO-BUG-ID: CSCux76819

Detections

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