CVE-2023-36845—Juniper Junos OS EX Series and SRX Series PHP External Variable Modification Vulnerability

Vulnerability Name

Juniper Junos OS EX Series and SRX Series PHP External Variable Modification Vulnerability

Description

Juniper Junos OS on EX Series and SRX Series contains a PHP external variable modification vulnerability that allows an unauthenticated, network-based attacker to control an important environment variable. Using a crafted request, which sets the variable PHPRC, an attacker is able to modify the PHP execution environment allowing the injection und execution of code.

Known To Be Used in Ransomware Campaigns?

Ransomware Status:

Unknown

Action

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

Additional 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-2023-36845

Related Weaknesses

• CWE-473