Juniper Junos OS SRX Series Missing Authentication for Critical Function Vulnerability
Juniper — Junos OS
- Added to KEV catalog
- 13 November 2023
- Federal remediation due date
- 17 November 2023
- Weakness classification (CWE)
- CWE-306
CISA Description
Juniper Junos OS on SRX 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 user.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.
Notes
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-2023-36846
More Juniper Vulnerabilities
Juniper ScreenOS Improper Authentication Vulnerability
Juniper Junos OS Improper Isolation or Compartmentalization Vulnerability
Juniper Junos OS EX Series PHP External Variable Modification Vulnerability
Juniper Junos OS EX Series and SRX Series PHP External Variable Modification Vulnerability
Juniper Junos OS EX Series Missing Authentication for Critical Function Vulnerability
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