Riskcovery

CVE-2024-21619

Junos OS: SRX Series and EX Series: J-Web - unauthenticated access to temporary files containing sensitive information

State
Published
Severity
5.3 Medium
Published
Jan 25, 2024
Updated
Jun 17, 2025
Reserved
Dec 27, 2023

Read the record on cve.org

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 (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.

Scores

CVSSScoreVectorSource
3.15.3 MediumCVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:N/A:Njuniper

Weaknesses

  • CWE-306 Missing Authentication for Critical Function
  • CWE-209 Generation of Error Message Containing Sensitive Information

Affected Products

ProductVersions
Junos OSJuniper Networks
  • before 20.4R3-S9Affected
  • 21.2 to before 21.2R3-S7Affected
  • 21.3 to before 21.3R3-S5Affected
  • 21.4 to before 21.4R3-S6Affected
  • 22.1 to before 22.1R3-S5Affected
  • 22.2 to before 22.2R3-S3Affected
  • 22.3 to before 22.3R3-S2Affected
  • 22.4 to before 22.4R3Affected
  • 23.2 to before 23.2R1-S2, 23.2R2Affected

References

Every record here comes from the CVE Program’s CVE List. © 1999–2026 The MITRE Corporation. CVE is a registered trademark of The MITRE Corporation. The records are reproduced under the CVE Program terms of use.