Juniper Junos OS Vulnerability (JSA83023)

high Nessus Plugin ID 202121

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Synopsis

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

Description

The version of Junos OS installed on the remote host is affected by a vulnerability as referenced in the JSA83023 advisory.

- An Improper Neutralization of Data within XPath Expressions ('XPath Injection') vulnerability in J-Web shipped with Juniper Networks Junos OS allows an unauthenticated, network-based attacker to execute remote commands on the target device. (CVE-2024-39565)

Note: Nessus found J-Web enabled [set system services web-management http(s)] on this device.

Solution

- Disable J-Web and using only alternate options such as Netconf over SSH for device management.
- Restricting the use of J-Web to low-privileged accounts only.
- Deploying the appropriate IDP Signature on devices which do not have J-Web enabled which protect the device downstream which requires J-Web to be enabled.

When remediating, please also refer to Juniper advisory JSA83023.

Plugin Details

Severity: High

ID: 202121

File Name: juniper_jsa83023.nasl

Version: 1.3

Type: combined

Family: Junos Local Security Checks

Published: 7/10/2024

Updated: 10/11/2024

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 5.9

CVSS v2

Risk Factor: Critical

Base Score: 10

Temporal Score: 7.4

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

CVSS Score Source: CVE-2024-39565

CVSS v3

Risk Factor: High

Base Score: 8.8

Temporal Score: 7.7

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/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: 7/10/2024

Vulnerability Publication Date: 7/10/2024

Reference Information

CVE: CVE-2024-39565

JSA: JSA83023

Detections

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