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    CVE-2023-36845

    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.

    Published:Aug 17, 2023
    Last Modified:Oct 24, 2025
    EPS:Aug 17, 2023
    EPSS Score:0.94355
    CVSS Score:9.8

    CISA Notification

    Description

    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.

    Required Action:

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

    Notes:

    No extra notes provided.

    Due Date
    Nov 17, 2023
    1029 days ago
    Alert Date
    Nov 13, 2023
    1033 days ago

    Affected Products

    Vendor
    Juniper
    Product
    Junos
    Vendor
    Juniper
    Product
    Srx100
    Vendor
    Juniper
    Product
    Srx110
    Vendor
    Juniper
    Product
    Srx1400
    Vendor
    Juniper
    Product
    Srx1500
    Vendor
    Juniper
    Product
    Srx210
    Vendor
    Juniper
    Product
    Srx220
    Vendor
    Juniper
    Product
    Srx240
    Vendor
    Juniper
    Product
    Srx240h2
    Vendor
    Juniper
    Product
    Srx240m
    Vendor
    Juniper
    Product
    Srx300
    Vendor
    Juniper
    Product
    Srx320
    Vendor
    Juniper
    Product
    Srx340
    Vendor
    Juniper
    Product
    Srx3400
    Vendor
    Juniper
    Product
    Srx345
    Vendor
    Juniper
    Product
    Srx3600
    Vendor
    Juniper
    Product
    Srx380
    Vendor
    Juniper
    Product
    Srx4000
    Vendor
    Juniper
    Product
    Srx4100
    Vendor
    Juniper
    Product
    Srx4200
    Vendor
    Juniper
    Product
    Srx4600
    Vendor
    Juniper
    Product
    Srx5000
    Vendor
    Juniper
    Product
    Srx5400
    Vendor
    Juniper
    Product
    Srx550
    Vendor
    Juniper
    Product
    Srx550 Hm
    Vendor
    Juniper
    Product
    Srx550m
    Vendor
    Juniper
    Product
    Srx5600
    Vendor
    Juniper
    Product
    Srx5800
    Vendor
    Juniper
    Product
    Srx650

    Exploits

    http://packetstormsecurity.com/files/174865/Juniper-SRX-Firewall-EX-Switch-Remote-Code-Execution.htmlhttp://packetstormsecurity.com/files/176969/Juniper-SRX-Firewall-EX-Switch-Remote-Code-Execution.htmlhttp://packetstormsecurity.com/files/174865/Juniper-SRX-Firewall-EX-Switch-Remote-Code-Execution.htmlhttp://packetstormsecurity.com/files/176969/Juniper-SRX-Firewall-EX-Switch-Remote-Code-Execution.htmlhttps://github.com/0xNehru/CVE-2023-36845-Juniper-Vulnerabilityhttps://github.com/ak1t4/CVE-2023-36845https://github.com/Asbawy/Automation-for-Juniper-cve-2023-36845https://github.com/CharonDefalt/Juniper-exploit-CVE-2023-36845https://github.com/cyb3rzest/Juniper-Bug-Automation-CVE-2023-36845https://github.com/cyberh3als/CVE-2023-36845-POChttps://github.com/e11i0t4lders0n/CVE-2023-36845https://github.com/halencarjunior/CVE-2023-36845https://github.com/ifconfig-me/CVE-2023-36845https://github.com/iveresk/CVE-2023-36845-6-https://github.com/jahithoque/Juniper-CVE-2023-36845-Mass-Huntinghttps://github.com/kljunowsky/CVE-2023-36845https://github.com/kopfjager007/CVE-2023-36845https://github.com/P4x1s/ansible-cve-2023-36845https://github.com/simrotion13/CVE-2023-36845https://github.com/toanln-cov/CVE-2023-36845https://github.com/Vignesh2712/Automation-for-Juniper-cve-2023-36845https://github.com/vulncheck-oss/cve-2023-36845-scannerhttps://github.com/zaenhaxor/CVE-2023-36845

    Common Attack Pattern Enumeration and Classification (CAPEC)

    CAPEC-77 Manipulating User-Controlled Variables

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    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High