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Juniper Junos OS Authentication for Critical Function (CVE-2024-21619)

medium Nessus Plugin ID 215001

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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 JSA76390 advisory.

 - A Missing Authentication for Critical Function vulnerability combined with a Generation of Error Message Containing Sensitive Information vulnerability in J-Web of Juniper Networks Junos OS on SRX Series and EX Series allows an unauthenticated, network-based attacker to access sensitive system information. When a user logs in, a temporary file which contains the configuration of the device (as visible to that user) is created in the /cache folder. An unauthenticated attacker can then attempt to access such a file by sending a specific request to the device trying to guess the name of such a file. Successful exploitation will reveal configuration information. (CVE-2024-21619)

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 JSA76390

See Also

https://kb.juniper.net/JSA76390

Plugin Details

Severity: Medium

ID: 215001

File Name: juniper_jsa76390_CVE-2024-21619.nasl

Version: 1.3

Type: Combined

Published: 2/5/2025

Updated: 4/22/2026

Supported Sensors: Nessus

Risk Information

CVSS Score Rationale: Set to score from vendor advisory.

VPR

Risk Factor: Low

Score: 3.6

CVSS v2

Risk Factor: Medium

Base Score: 4.9

Temporal Score: 3.6

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

CVSS Score Source: manual

CVSS v3

Risk Factor: Medium

Base Score: 5.3

Temporal Score: 4.6

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

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: 1/25/2024

Vulnerability Publication Date: 1/25/2024

CISA Known Exploited Vulnerability Due Dates: 11/17/2023

Reference Information

CVE: CVE-2024-21619

JSA: JSA76390