Juniper Junos OS prior 23.2R2 on SRX/EX Temporary Files /cache missing authentication

CVSS Meta Temp Score
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CTI Interest Score
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5.3$0-$5k0.00

Summaryinfo

A vulnerability described as critical has been identified in Juniper Junos OS on SRX/EX. The affected element is an unknown function of the file /cache of the component Temporary Files Handler. Executing a manipulation can lead to missing authentication. This vulnerability is tracked as CVE-2024-21619. The attack can be launched remotely. No exploit exists. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability classified as problematic was found in Juniper Junos OS on SRX/EX (Router Operating System). This vulnerability affects an unknown code block of the file /cache of the component Temporary Files Handler. The manipulation with an unknown input leads to a missing authentication vulnerability. The CWE definition for the vulnerability is CWE-306. The product does not perform any authentication for functionality that requires a provable user identity or consumes a significant amount of resources. As an impact it is known to affect confidentiality. CVE summarizes:

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. This issue affects Juniper Networks Junos OS on SRX Series and EX Series: * All versions earlier than 20.4R3-S9; * 21.2 versions earlier than 21.2R3-S7; * 21.3 versions earlier than 21.3R3-S5; * 21.4 versions earlier than 21.4R3-S6; * 22.1 versions earlier than 22.1R3-S5; * 22.2 versions earlier than 22.2R3-S3; * 22.3 versions earlier than 22.3R3-S2; * 22.4 versions earlier than 22.4R3; * 23.2 versions earlier than 23.2R1-S2, 23.2R2.

The weakness was disclosed 01/26/2024 as JSA76390. The advisory is available at supportportal.juniper.net. This vulnerability was named CVE-2024-21619 since 12/27/2023. Successful exploitation requires user interaction by the victim. Technical details are known, but there is no available exploit.

The vulnerability scanner Nessus provides a plugin with the ID 215001 (Juniper Junos OS Authentication for Critical Function (CVE-2024-21619)), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 20.4R3-S9, 21.2R3-S7, 21.3R3-S5, 21.4R3-S6, 22.1R3-S5, 22.2R3-S3, 22.3R3-S2, 22.4R3, 23.2R1-S2 or 23.2R2 eliminates this vulnerability.

The vulnerability is also documented in the vulnerability database at Tenable (215001). If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

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Vendor

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License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.3
VulDB Meta Temp Score: 5.3

VulDB Base Score: 3.1
VulDB Temp Score: 3.0
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.5
NVD Vector: 🔍

CNA Base Score: 5.3
CNA Vector (Juniper Networks, Inc.): 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

Exploitinginfo

Class: Missing authentication
CWE: CWE-306 / CWE-287
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 215001
Nessus Name: Juniper Junos OS Authentication for Critical Function (CVE-2024-21619)

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: Junos OS 20.4R3-S9/21.2R3-S7/21.3R3-S5/21.4R3-S6/22.1R3-S5/22.2R3-S3/22.3R3-S2/22.4R3/23.2R1-S2/23.2R2

Timelineinfo

12/27/2023 🔍
01/26/2024 +30 days 🔍
01/26/2024 +0 days 🔍
02/05/2025 +376 days 🔍

Sourcesinfo

Vendor: juniper.net

Advisory: JSA76390
Status: Confirmed

CVE: CVE-2024-21619 (🔍)
GCVE (CVE): GCVE-0-2024-21619
GCVE (VulDB): GCVE-100-252082

Entryinfo

Created: 01/26/2024 07:04
Updated: 02/05/2025 21:22
Changes: 01/26/2024 07:04 (53), 02/18/2024 19:32 (11), 02/05/2025 21:22 (17)
Complete: 🔍
Cache ID: 216::103

If you want to get best quality of vulnerability data, you may have to visit VulDB.

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