Juniper Junos OS EX Series Missing Authentication for Critical Function Vulnerability

Added Nov. 13, 2023 • Due Nov. 17, 2023 • CVE-2023-36847

Overdue Juniper / Junos OS CWE-306

Description

Juniper Junos OS on EX Series contains a missing authentication for critical function vulnerability that allows an unauthenticated, network-based attacker to cause limited impact to the file system integrity. With a specific request to installAppPackage.php that doesn't require authentication, an attacker is able to upload arbitrary files via J-Web, leading to a loss of integrity for a certain part of the file system, which may allow chaining to other vulnerabilities.

Required Action

Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.

References

https://supportportal.juniper.net/s/article/2023-08-Out-of-Cycle-Security-Bulletin-Junos-OS-SRX-Series-and-EX-Series-Multiple-vulnerabilities-in-J-Web-can-be-combined-to-allow-a-preAuth-Remote-Code-Execution?language=en_US
https://nvd.nist.gov/vuln/detail/CVE-2023-36847

Additional Information

Catalog Version: 2025.01.24
Catalog Released: Jan. 24, 2025
Days Until Due: 0 days
Last Updated: 7 months, 2 weeks ago