Juniper Junos jdhcpd DHCPv6 DoS (JSA10769)

high Nessus Plugin ID 96659
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Synopsis

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

Description

According to its self-reported version number and configuration, the remote Juniper Junos device is affected by a denial of service vulnerability in the DHCPv6 daemon (jdhpcd) when handling DHCPv6 packets. An unauthenticated, remote attacker can exploit this issue, by sending specially crafted DHCPv6 packets, to cause a denial of service condition for subscribers attempting to obtain IPv6 addresses.

Note that this vulnerability only occurs in devices configured for DHCP services via IPv6 with either Server or Relay enabled. IPv4 is not vulnerable to this issue.

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

Solution

Apply the relevant Junos software release or workaround referenced in Juniper advisory JSA10769.

See Also

https://kb.juniper.net/InfoCenter/index?page=content&id=JSA10769

Plugin Details

Severity: High

ID: 96659

File Name: juniper_jsa10769.nasl

Version: 1.6

Type: combined

Published: 1/20/2017

Updated: 8/10/2018

Dependencies: junos_version.nasl

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: High

Base Score: 7.5

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

Vulnerability Information

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

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

Patch Publication Date: 1/11/2017

Vulnerability Publication Date: 1/11/2017

Reference Information

CVE: CVE-2017-2301

BID: 95396

JSA: JSA10769