CVE-2023-36845 — Juniper Junos OS EX Series and SRX Series PHP External Variable Modification Vulnerability
CVE-2023-36845: Juniper Junos OS EX Series and SRX Series PHP External Variable Modification Vulnerability
CISA Known Exploited Vulnerability (KEV)
| Vendor / project | Juniper |
| Product | Junos OS |
| Date added | 2023-11-13 |
| Due date | 2023-11-17 |
| Ransomware campaign use | Unknown |
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.
Required action (CISA)
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-2023-36845
References
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2023-36845
- KEV catalog: https://www.cisa.gov/known-exploited-vulnerabilities-catalog