Juniper Junos OS EX Series PHP External Variable Modification Vulnerability
Summary
| CVE | CVE-2023-36844 |
|---|---|
| State | PUBLIC |
| Assigner | [email protected] |
| Source Priority | CVE Program / NVD first with legacy fallback |
| Published | 2023-08-17 20:15:00 UTC |
| Updated | 2023-10-02 19:15:00 UTC |
| Description | A PHP External Variable Modification vulnerability in J-Web of Juniper Networks Junos OS on EX Series allows an unauthenticated, network-based attacker to control certain, important environment variables. Using a crafted request an attacker is able to modify certain PHP environment variables leading to partial loss of integrity, which may allow chaining to other vulnerabilities. This issue affects Juniper Networks Junos OS on EX 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 22.3R3-S1; * 22.4 versions prior to 22.4R2-S2, 22.4R3; * 23.2 versions prior to 23.2R1-S1, 23.2R2. |
Risk And Classification
EPSS: 0.943020000 probability, percentile 0.999450000 (date 2026-04-22)
CISA KEV: Listed on 2023-11-13; due 2023-11-17; ransomware use Unknown
CISA Known Exploited Vulnerability
| Vendor | Juniper |
|---|---|
| Product | Junos OS |
| Name | Juniper Junos OS EX Series PHP External Variable Modification Vulnerability |
| 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-2023-36844 |
NVD Known Affected Configurations (CPE 2.3)
| Type | Vendor | Product | Version | Update | Edition | Language |
|---|---|---|---|---|---|---|
| Hardware | Juniper | Ex2200 | - | All | All | All |
| Hardware | Juniper | Ex2200-c | - | All | All | All |
| Hardware | Juniper | Ex2200-vc | - | All | All | All |
| Hardware | Juniper | Ex2300 | - | All | All | All |
| Hardware | Juniper | Ex2300-24mp | - | All | All | All |
| Hardware | Juniper | Ex2300-24p | - | All | All | All |
| Hardware | Juniper | Ex2300-24t | - | All | All | All |
| Hardware | Juniper | Ex2300-48mp | - | All | All | All |
| Hardware | Juniper | Ex2300-48p | - | All | All | All |
| Hardware | Juniper | Ex2300-48t | - | All | All | All |
| Hardware | Juniper | Ex2300-c | - | All | All | All |
| Hardware | Juniper | Ex2300m | - | All | All | All |
| Hardware | Juniper | Ex3200 | - | All | All | All |
| Hardware | Juniper | Ex3300 | - | All | All | All |
| Hardware | Juniper | Ex3300-vc | - | All | All | All |
| Hardware | Juniper | Ex3400 | - | All | All | All |
| Hardware | Juniper | Ex4200 | - | All | All | All |
| Hardware | Juniper | Ex4200-vc | - | All | All | All |
| Hardware | Juniper | Ex4300 | - | All | All | All |
| Hardware | Juniper | Ex4300-24p | - | All | All | All |
| Hardware | Juniper | Ex4300-24p-s | - | All | All | All |
| Hardware | Juniper | Ex4300-24t | - | All | All | All |
| Hardware | Juniper | Ex4300-24t-s | - | All | All | All |
| Hardware | Juniper | Ex4300-32f | - | All | All | All |
| Hardware | Juniper | Ex4300-32f-dc | - | All | All | All |
| Hardware | Juniper | Ex4300-32f-s | - | All | All | All |
| Hardware | Juniper | Ex4300-48mp | - | All | All | All |
| Hardware | Juniper | Ex4300-48mp-s | - | All | All | All |
| Hardware | Juniper | Ex4300-48p | - | All | All | All |
| Hardware | Juniper | Ex4300-48p-s | - | All | All | All |
| Hardware | Juniper | Ex4300-48t | - | All | All | All |
| Hardware | Juniper | Ex4300-48t-afi | - | All | All | All |
| Hardware | Juniper | Ex4300-48t-dc | - | All | All | All |
| Hardware | Juniper | Ex4300-48t-dc-afi | - | All | All | All |
| Hardware | Juniper | Ex4300-48t-s | - | All | All | All |
| Hardware | Juniper | Ex4300-48tafi | - | All | All | All |
| Hardware | Juniper | Ex4300-48tdc | - | All | All | All |
| Hardware | Juniper | Ex4300-48tdc-afi | - | All | All | All |
| Hardware | Juniper | Ex4300-mp | - | All | All | All |
| Hardware | Juniper | Ex4300-vc | - | All | All | All |
| Hardware | Juniper | Ex4300m | - | All | All | All |
| Hardware | Juniper | Ex4400 | - | All | All | All |
| Hardware | Juniper | Ex4500 | - | All | All | All |
| Hardware | Juniper | Ex4500-vc | - | All | All | All |
| Hardware | Juniper | Ex4550 | - | All | All | All |
| Hardware | Juniper | Ex4550-vc | - | All | All | All |
| Hardware | Juniper | Ex4550/vc | - | All | All | All |
| Hardware | Juniper | Ex4600 | - | All | All | All |
| Hardware | Juniper | Ex4600-vc | - | All | All | All |
| Hardware | Juniper | Ex4650 | - | All | All | All |
| Hardware | Juniper | Ex6200 | - | All | All | All |
| Hardware | Juniper | Ex6210 | - | All | All | All |
| Hardware | Juniper | Ex8200 | - | All | All | All |
| Hardware | Juniper | Ex8200-vc | - | All | All | All |
| Hardware | Juniper | Ex8208 | - | All | All | All |
| Hardware | Juniper | Ex8216 | - | All | All | All |
| Hardware | Juniper | Ex9200 | - | All | All | All |
| Hardware | Juniper | Ex9204 | - | All | All | All |
| Hardware | Juniper | Ex9208 | - | All | All | All |
| Hardware | Juniper | Ex9214 | - | All | All | All |
| Hardware | Juniper | Ex9250 | - | All | All | All |
| Hardware | Juniper | Ex9251 | - | All | All | All |
| Hardware | Juniper | Ex9253 | - | All | All | All |
| Operating System | Juniper | Junos | All | All | All | All |
| Operating System | Juniper | Junos | 20.4 | - | All | All |
| Operating System | Juniper | Junos | 20.4 | r1 | All | All |
| Operating System | Juniper | Junos | 20.4 | r1-s1 | All | All |
| Operating System | Juniper | Junos | 20.4 | r2 | All | All |
| Operating System | Juniper | Junos | 20.4 | r2-s1 | All | All |
| Operating System | Juniper | Junos | 20.4 | r2-s2 | All | All |
| Operating System | Juniper | Junos | 20.4 | r3 | All | All |
| Operating System | Juniper | Junos | 20.4 | r3-s1 | All | All |
| Operating System | Juniper | Junos | 20.4 | r3-s2 | All | All |
| Operating System | Juniper | Junos | 20.4 | r3-s3 | All | All |
| Operating System | Juniper | Junos | 20.4 | r3-s4 | All | All |
| Operating System | Juniper | Junos | 20.4 | r3-s5 | All | All |
| Operating System | Juniper | Junos | 20.4 | r3-s6 | All | All |
| Operating System | Juniper | Junos | 20.4 | r3-s7 | All | All |
| Operating System | Juniper | Junos | 21.1 | r1 | All | All |
| Operating System | Juniper | Junos | 21.1 | r1-s1 | All | All |
| Operating System | Juniper | Junos | 21.1 | r2 | All | All |
| Operating System | Juniper | Junos | 21.1 | r2-s1 | All | All |
| Operating System | Juniper | Junos | 21.1 | r2-s2 | All | All |
| Operating System | Juniper | Junos | 21.1 | r3 | All | All |
| Operating System | Juniper | Junos | 21.1 | r3-s1 | All | All |
| Operating System | Juniper | Junos | 21.1 | r3-s2 | All | All |
| Operating System | Juniper | Junos | 21.1 | r3-s3 | All | All |
| Operating System | Juniper | Junos | 21.1 | r3-s4 | All | All |
| Operating System | Juniper | Junos | 21.1 | r3-s5 | All | All |
| Operating System | Juniper | Junos | 21.2 | - | All | All |
| Operating System | Juniper | Junos | 21.2 | r1 | All | All |
| Operating System | Juniper | Junos | 21.2 | r1-s1 | All | All |
| Operating System | Juniper | Junos | 21.2 | r1-s2 | All | All |
| Operating System | Juniper | Junos | 21.2 | r2 | All | All |
| Operating System | Juniper | Junos | 21.2 | r2-s1 | All | All |
| Operating System | Juniper | Junos | 21.2 | r2-s2 | All | All |
| Operating System | Juniper | Junos | 21.2 | r3 | All | All |
| Operating System | Juniper | Junos | 21.2 | r3-s1 | All | All |
| Operating System | Juniper | Junos | 21.2 | r3-s2 | All | All |
| Operating System | Juniper | Junos | 21.2 | r3-s3 | All | All |
| Operating System | Juniper | Junos | 21.2 | r3-s4 | All | All |
| Operating System | Juniper | Junos | 21.2 | r3-s5 | All | All |
| Operating System | Juniper | Junos | 21.3 | - | All | All |
| Operating System | Juniper | Junos | 21.3 | r1 | All | All |
| Operating System | Juniper | Junos | 21.3 | r1-s1 | All | All |
| Operating System | Juniper | Junos | 21.3 | r1-s2 | All | All |
| Operating System | Juniper | Junos | 21.3 | r2 | All | All |
| Operating System | Juniper | Junos | 21.3 | r2-s1 | All | All |
| Operating System | Juniper | Junos | 21.3 | r2-s2 | All | All |
| Operating System | Juniper | Junos | 21.3 | r3 | All | All |
| Operating System | Juniper | Junos | 21.3 | r3-s1 | All | All |
| Operating System | Juniper | Junos | 21.3 | r3-s2 | All | All |
| Operating System | Juniper | Junos | 21.3 | r3-s3 | All | All |
| Operating System | Juniper | Junos | 21.3 | r3-s4 | All | All |
| Operating System | Juniper | Junos | 21.4 | - | All | All |
| Operating System | Juniper | Junos | 21.4 | r1 | All | All |
| Operating System | Juniper | Junos | 21.4 | r1-s1 | All | All |
| Operating System | Juniper | Junos | 21.4 | r1-s2 | All | All |
| Operating System | Juniper | Junos | 21.4 | r2 | All | All |
| Operating System | Juniper | Junos | 21.4 | r2-s1 | All | All |
| Operating System | Juniper | Junos | 21.4 | r2-s2 | All | All |
| Operating System | Juniper | Junos | 21.4 | r3 | All | All |
| Operating System | Juniper | Junos | 21.4 | r3-s1 | All | All |
| Operating System | Juniper | Junos | 21.4 | r3-s2 | All | All |
| Operating System | Juniper | Junos | 21.4 | r3-s3 | All | All |
| Operating System | Juniper | Junos | 21.4 | r3-s4 | All | All |
| Operating System | Juniper | Junos | 22.1 | r1 | All | All |
| Operating System | Juniper | Junos | 22.1 | r1-s1 | All | All |
| Operating System | Juniper | Junos | 22.1 | r1-s2 | All | All |
| Operating System | Juniper | Junos | 22.1 | r2 | All | All |
| Operating System | Juniper | Junos | 22.1 | r2-s1 | All | All |
| Operating System | Juniper | Junos | 22.1 | r2-s2 | All | All |
| Operating System | Juniper | Junos | 22.1 | r3 | All | All |
| Operating System | Juniper | Junos | 22.1 | r3-s1 | All | All |
| Operating System | Juniper | Junos | 22.1 | r3-s2 | All | All |
| Operating System | Juniper | Junos | 22.2 | r1 | All | All |
| Operating System | Juniper | Junos | 22.2 | r1-s1 | All | All |
| Operating System | Juniper | Junos | 22.2 | r1-s2 | All | All |
| Operating System | Juniper | Junos | 22.2 | r2 | All | All |
| Operating System | Juniper | Junos | 22.2 | r2-s1 | All | All |
| Operating System | Juniper | Junos | 22.2 | r2-s2 | All | All |
| Operating System | Juniper | Junos | 22.2 | r3 | All | All |
| Operating System | Juniper | Junos | 22.2 | r3-s1 | All | All |
| Operating System | Juniper | Junos | 22.3 | r1 | All | All |
| Operating System | Juniper | Junos | 22.3 | r1-s1 | All | All |
| Operating System | Juniper | Junos | 22.3 | r1-s2 | All | All |
| Operating System | Juniper | Junos | 22.3 | r2 | All | All |
| Operating System | Juniper | Junos | 22.3 | r2-s1 | All | All |
| Operating System | Juniper | Junos | 22.4 | r1 | All | All |
| Operating System | Juniper | Junos | 22.4 | r1-s1 | All | All |
| Operating System | Juniper | Junos | 22.4 | r1-s2 | All | All |
| Operating System | Juniper | Junos | 22.4 | r2 | All | All |
| Hardware | Juniper | Srx100 | - | All | All | All |
| Hardware | Juniper | Srx110 | - | All | All | All |
| Hardware | Juniper | Srx1400 | - | All | All | All |
| Hardware | Juniper | Srx1500 | - | All | All | All |
| Hardware | Juniper | Srx210 | - | All | All | All |
| Hardware | Juniper | Srx220 | - | All | All | All |
| Hardware | Juniper | Srx240 | - | All | All | All |
| Hardware | Juniper | Srx240h2 | - | All | All | All |
| Hardware | Juniper | Srx240m | - | All | All | All |
| Hardware | Juniper | Srx300 | - | All | All | All |
| Hardware | Juniper | Srx320 | - | All | All | All |
| Hardware | Juniper | Srx340 | - | All | All | All |
| Hardware | Juniper | Srx3400 | - | All | All | All |
| Hardware | Juniper | Srx345 | - | All | All | All |
| Hardware | Juniper | Srx3600 | - | All | All | All |
| Hardware | Juniper | Srx380 | - | All | All | All |
| Hardware | Juniper | Srx4000 | - | All | All | All |
| Hardware | Juniper | Srx4100 | - | All | All | All |
| Hardware | Juniper | Srx4200 | - | All | All | All |
| Hardware | Juniper | Srx4600 | - | All | All | All |
| Hardware | Juniper | Srx5000 | - | All | All | All |
| Hardware | Juniper | Srx5400 | - | All | All | All |
| Hardware | Juniper | Srx550 | - | All | All | All |
| Hardware | Juniper | Srx550m | - | All | All | All |
| Hardware | Juniper | Srx550 Hm | - | All | All | All |
| Hardware | Juniper | Srx5600 | - | All | All | All |
| Hardware | Juniper | Srx5800 | - | All | All | All |
| Hardware | Juniper | Srx650 | - | All | All | All |
References
| Reference | Source | Link | Tags |
|---|---|---|---|
| CEC Juniper Community | MISC | supportportal.juniper.net | |
| Juniper JunOS SRX / EX Remote Code Execution ≈ Packet Storm | MISC | packetstormsecurity.com | |
| Juniper SRX Firewall / EX Switch Remote Code Execution ≈ Packet Storm | MISC | packetstormsecurity.com | |
| CVE Program record | CVE.ORG | www.cve.org | canonical |
| NVD vulnerability detail | NVD | nvd.nist.gov | canonical, analysis |
| CISA Known Exploited Vulnerabilities catalog | CISA | www.cisa.gov | kev |
No vendor comments have been submitted for this CVE.
There are currently no legacy QID mappings associated with this CVE.