Juniper Junos vMX Predictable IP ID Sequence Numbers (JSA10903)

critical Nessus Plugin ID 121129


The remote device is missing a vendor-supplied security patch.


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.


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

See Also

Plugin Details

Severity: Critical

ID: 121129

File Name: juniper_jsa10903.nasl

Version: 1.5

Type: combined

Published: 1/11/2019

Updated: 2/9/2021

Risk Information


Risk Factor: Medium

Score: 6.5


Risk Factor: High

Base Score: 7.5

Temporal Score: 5.5

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

Temporal Vector: E:U/RL:OF/RC:C

CVSS Score Source: CVE-2019-0007


Risk Factor: Critical

Base Score: 10

Temporal Score: 8.7

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

Temporal Vector: 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