---
cve: "CVE-2023-36845"
severity: "CRITICAL"
cvss: 9.8
epss: "94.3%"
vendor: "Juniper Networks"
kev: true
exploited: true
published: "2023-08-17 20:15:10"
tags: [cve, security, critical]
source: tsecurity.de CVE-Dossier
exported: "2026-09-15T05:16:41+02:00"
---

# CVE-2023-36845

> 9.8 CRITICAL · ⚠️ CISA KEV (1037 Tage) · 🔓 Exploited · 🧪 PoC

## Beschreibung

A PHP External Variable Modification vulnerability in J-Web of Juniper Networks Junos OS on EX Series 

and SRX Series 

allows an unauthenticated, network-based attacker to remotely execute code.

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.


This issue affects Juniper Networks Junos OS on EX Series


and 


SRX Series:



  *  All versions prior to 

20.4R3-S9;
  *  21.1 versions 21.1R1 and later;
  *  21.2 versions prior to 21.2R3-S7;
  *  21.3 versions prior to 21.3R3-S5;
  *  21.4 versions prior to 21.4R3-S5;
  *  22.1 versions 

prior to 

22.1R3-S4;
  *  22.2 versions 

prior to 

22.2R3-S2;
  *  22.3 versions 

prior to 

22.3R2-S2, 22.3R3-S1;
  *  22.4 versions 

prior to 

22.4R2-S1, 22.4R3;
  *  23.2 versions prior to 23.2R1-S1, 23.2R2.

## CVSS-Vektor

```
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
```

| Metrik | Wert | Bewertung |
|---|---|---|
| AV Angriffsvektor | Netzwerk | bad |
| AC Komplexität | Gering | bad |
| PR Privilegien | Keine | bad |
| UI Interaktion | Keine | bad |
| S Scope | Unverändert | good |
| C Vertraulichkeit | Hoch | bad |
| I Integrität | Hoch | bad |
| A Verfügbarkeit | Hoch | bad |

## Referenzen

- <https://supportportal.juniper.net/JSA72300>
- <http://packetstormsecurity.com/files/174865/Juniper-SRX-Firewall-EX-Switch-Remote-Code-Execution.html>
- <http://packetstormsecurity.com/files/176969/Juniper-SRX-Firewall-EX-Switch-Remote-Code-Execution.html>
- <https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2023-36845>

---
_Exportiert aus dem [tsecurity.de CVE-Dossier](https://tsecurity.de/cve?cve=CVE-2023-36845) · Datenquellen: EUVD (ENISA), NVD, OSV, CISA KEV, FIRST EPSS, Exploit-DB, BSI BITS_