PT-2024-1427 · Juniper Networks · Junos

CVE-2024-21619 · Published 2024-01-25 · Updated 2024-02-08

Positive Technologies (AI Summary)

CVSS v3.1

7.5

High

Base vector

AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Name of the Vulnerable Software and Affected Versions Juniper Networks Junos OS on SRX Series and EX Series versions earlier than 20.4R3-S9 Juniper Networks Junos OS on SRX Series and EX Series 21.2 versions earlier than 21.2R3-S7 Juniper Networks Junos OS on SRX Series and EX Series 21.3 versions earlier than 21.3R3-S5 Juniper Networks Junos OS on SRX Series and EX Series 21.4 versions earlier than 21.4R3-S6 Juniper Networks Junos OS on SRX Series and EX Series 22.1 versions earlier than 22.1R3-S5 Juniper Networks Junos OS on SRX Series and EX Series 22.2 versions earlier than 22.2R3-S3 Juniper Networks Junos OS on SRX Series and EX Series 22.3 versions earlier than 22.3R3-S2 Juniper Networks Junos OS on SRX Series and EX Series 22.4 versions earlier than 22.4R3 Juniper Networks Junos OS on SRX Series and EX Series 23.2 versions earlier than 23.2R1-S2, 23.2R2

Description 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 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.

Recommendations For versions earlier than 20.4R3-S9, update to version 20.4R3-S9 or later. For 21.2 versions earlier than 21.2R3-S7, update to version 21.2R3-S7 or later. For 21.3 versions earlier than 21.3R3-S5, update to version 21.3R3-S5 or later. For 21.4 versions earlier than 21.4R3-S6, update to version 21.4R3-S6 or later. For 22.1 versions earlier than 22.1R3-S5, update to version 22.1R3-S5 or later. For 22.2 versions earlier than 22.2R3-S3, update to version 22.2R3-S3 or later. For 22.3 versions earlier than 22.3R3-S2, update to version 22.3R3-S2 or later. For 22.4 versions earlier than 22.4R3, update to version 22.4R3 or later. For 23.2 versions earlier than 23.2R1-S2, 23.2R2, update to version 23.2R1-S2, 23.2R2 or later. As a temporary workaround, consider restricting access to the /cache folder to minimize the risk of exploitation.

Fix

Missing Authentication

Generation of Error Message Containing Sensitive Information

Weakness Enumeration

CWE-306

CWE-209

Related Identifiers

BDU:2024-00901

CVE-2024-21619

Affected Products

Junos

References · 27

• https://supportportal.juniper.net/JSA76390 · Vendor Advisory
• https://bdu.fstec.ru/vul/2024-00901 · Security Note
• https://osv.dev/vulnerability/CVE-2024-21619 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2024-21619 · Security Note
• https://twitter.com/_CyberCloud_/status/1752587570062487669 · Twitter Post
• https://twitter.com/XynikIT/status/1752345611196608736 · Twitter Post
• https://twitter.com/JuniperSIRT/status/1750657009417179181 · Twitter Post
• https://twitter.com/VulmonFeeds/status/1750698027801575682 · Twitter Post
• https://github.com/advisories/GHSA-xvh3-qgp6-m4r6 · Note
• https://twitter.com/CVEnew/status/1750652923577593935 · Twitter Post
• https://t.me/true_secator/5350 · Telegram Post
• https://twitter.com/gbc13/status/1752562754211156407 · Twitter Post
• https://twitter.com/SRA_ThreatWatch/status/1752438822565020010 · Twitter Post
• https://twitter.com/zoomeye_team/status/1752586795043438744 · Twitter Post
• https://twitter.com/SpeakerChris/status/1753649970308157517 · Twitter Post