Juniper Junos SRX Series Gateway Chassis Cluster flowd Multicast Session DoS (JSA10768)

medium Nessus Plugin ID 96658

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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 SRX series device is affected by a denial of service vulnerability in the flow daemon (flowd) when handling multicast session synchronization. An unauthenticated, adjacent attacker can exploit this issue, by sending specially crafted multicast packets, to cause the flowd daemon to crash and restart.

Note that this vulnerability only occurs in chassis cluster configurations that process transit multicast traffic. Transit multicast traffic is processed on an SRX services gateway by enabling PIM in normal Flow Mode, or via security policies permitting transit multicast traffic in L2/Transparent Mode.

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 JSA10768.

Plugin Details

Severity: Medium

ID: 96658

File Name: juniper_jsa10768.nasl

Version: 1.6

Type: combined

Family: Junos Local Security Checks

Published: 1/20/2017

Updated: 8/10/2018

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: Low

Score: 3.6

CVSS v2

Risk Factor: Medium

Base Score: 5.7

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

CVSS v3

Risk Factor: Medium

Base Score: 6.5

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

Vulnerability Information

CPE: cpe:/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-2017-2300

BID: 95400

JSA: JSA10768

Detections

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