Juniper Junos for EX Series Switches IPv6 Neighbor Discovery DoS (JSA10781)

medium Nessus Plugin ID 99526
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Synopsis

The remote device is affected by a denial of service vulnerability.

Description

According to its self-reported version, the remote Juniper Junos EX Series device is affected by a memory leak issue in IPv6 processing when handling a specially crafted IPv6 Neighbor Discovery (ND) packet.
An unauthenticated, remote attacker can exploit this, via a malicious network-based flood of these crafted IPv6 NDP packets, to cause resource exhaustion, resulting in a denial of service condition. Note that this issue only affects EX Series Ethernet Switches with IPv6 enabled.

Nessus has not tested for this issue but has instead relied only on the device's self-reported version and model.

Solution

Apply the relevant Junos software release or workaround referenced in Juniper advisory JSA10781.

See Also

http://www.nessus.org/u?ae19d456

Plugin Details

Severity: Medium

ID: 99526

File Name: juniper_jsa10781.nasl

Version: 1.5

Type: combined

Published: 4/20/2017

Updated: 8/10/2018

Dependencies: junos_version.nasl

Configuration: Enable paranoid mode

Risk Information

VPR

Risk Factor: Low

Score: 3.6

CVSS v2

Risk Factor: Medium

Base Score: 5

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

CVSS v3

Risk Factor: Medium

Base Score: 5.3

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

Vulnerability Information

CPE: cpe:2.3:o:juniper:junos:*:*:*:*:*:*:*:*

Required KB Items: Settings/ParanoidReport, Host/Juniper/model, Host/Juniper/JUNOS/Version

Patch Publication Date: 4/12/2017

Vulnerability Publication Date: 4/12/2017

Reference Information

CVE: CVE-2017-2315

BID: 97615

JSA: JSA10781