Junos OS: MC-LAG DoS (JSA10966)

medium Nessus Plugin ID 130515

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Synopsis

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

Description

According to its self-reported version number, the remote Juniper Junos device is affected by a denial of service (DoS) vulnerability on devices configured with Multi-Chassis Link Aggregation Group (MC-LAG). An unauthenticated, adjacent attacker can exploit this by continuously sending a specially crafted IPv6 packet to repeatedly crash the system and cause the device to stop responding.

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

Solution

Apply the relevant Junos software release referenced in Juniper advisory JSA10966.

Plugin Details

Severity: Medium

ID: 130515

File Name: juniper_jsa10966.nasl

Version: 1.4

Type: combined

Family: Junos Local Security Checks

Published: 11/6/2019

Updated: 1/28/2021

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-2019-0067

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:juniper:junos

Required KB Items: Host/Juniper/JUNOS/Version

Exploit Ease: No known exploits are available

Patch Publication Date: 10/9/2019

Vulnerability Publication Date: 10/9/2019

Reference Information

CVE: CVE-2019-0067

IAVA: 2019-A-0388

JSA: JSA10966

Detections

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