Junos OS: flowd DoS (JSA10963)

high Nessus Plugin ID 130466

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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 in the flowd process on SRX 5000 devices when 'set security zones security-zone <zone> tcp-rst' is configured. An unauthenticated, remote attacker can send a crafted TCP packet to crash the flowd process and trigger a new session. Repeated crashes of the flowd daemon can result in an extended DoS condition.

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 JSA10963.

Plugin Details

Severity: High

ID: 130466

File Name: juniper_jsa10963.nasl

Version: 1.4

Type: combined

Family: Junos Local Security Checks

Published: 11/4/2019

Updated: 1/28/2021

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: Low

Score: 3.6

CVSS v2

Risk Factor: Medium

Base Score: 4.3

Temporal Score: 3.2

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

CVSS Score Source: CVE-2019-0064

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:juniper:junos

Required KB Items: Host/Juniper/model, 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-2019-0064

IAVA: 2019-A-0388

JSA: JSA10963

Detections

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