Juniper Junos vMX Predictable IP ID Sequence Numbers (JSA10903)

critical Nessus Plugin ID 121129

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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 Junos device uses a predictable IP ID sequence number. It is, therefore, vulnerable to a family of attacks that rely on this property, including a susceptibility to being used as a 'zombie' host in an 'idle scan' blind port scan of another remote host.

Solution

Apply the relevant Junos software release referenced in Juniper advisory JSA10903.

Plugin Details

Severity: Critical

ID: 121129

File Name: juniper_jsa10903.nasl

Version: 1.6

Type: Combined

Family: Junos Local Security Checks

Published: 1/11/2019

Updated: 4/22/2026

Supported Sensors: Nessus

Risk Information

CVSS Score Rationale: Set to score from vendor advisory.

VPR

Risk Factor: Medium

Score: 6.5

CVSS v2

Risk Factor: High

Base Score: 8.5

Temporal Score: 6.3

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

CVSS Score Source: manual

CVSS v3

Risk Factor: Critical

Base Score: 9.3

Temporal Score: 8.1

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:L/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, Host/Juniper/model

Exploit Ease: No known exploits are available

Patch Publication Date: 1/9/2019

Vulnerability Publication Date: 1/9/2019

Reference Information

CVE: CVE-2019-0007

JSA: JSA10903

Detections

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