CVE-2025-60009 in Junos Space
Summary
by MITRE • 10/09/2025
An Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in Juniper Networks Junos Space allows an attacker to inject script tags in the
CLI Configlet
page that, when visited by another user, enables the attacker to execute commands with the target's permissions, including an administrator.
This issue affects all versions of Junos Space before 24.1R4.
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Analysis
by VulDB Data Team • 10/09/2025
The vulnerability CVE-2025-60009 represents a critical cross-site scripting flaw within Juniper Networks Junos Space platform that specifically targets the CLI Configlet page functionality. This weakness falls under the CWE-79 category of Cross-Site Scripting, where improper input validation during web page generation creates opportunities for malicious code injection. The vulnerability exists in all Junos Space versions prior to 24.1R4, making a substantial portion of the installed base susceptible to exploitation. The attack vector specifically leverages the web page generation process where user-supplied input from CLI Configlet components is not adequately sanitized or escaped before being rendered in the browser context. When an authenticated user visits a page containing malicious script tags injected through the vulnerable configuration interface, the browser executes the embedded malicious code with the privileges of the targeted user. This particular implementation allows attackers to escalate their privileges to administrative levels, as the malicious script execution occurs within the context of the target user's session, potentially enabling full system compromise. The vulnerability demonstrates the classic XSS attack pattern where untrusted data flows from user input directly into the web application's output without proper neutralization. This weakness directly maps to ATT&CK technique T1059.007 for Command and Scripting Interpreter and T1566 for Phishing, as it enables both code execution and social engineering aspects of the attack chain. The impact extends beyond simple script execution as the administrative privileges available to the compromised user provide attackers with extensive access to system configurations, user management, network monitoring capabilities, and potentially sensitive data within the Junos Space environment. The vulnerability's severity is amplified by the fact that it requires minimal user interaction beyond visiting the compromised page, making it particularly dangerous in environments where multiple administrators may access the same Junos Space instance. The affected CLI Configlet page represents a high-value target because it typically contains configuration data that users might interact with regularly, increasing the attack surface and potential for successful exploitation. Organizations using Junos Space should immediately implement mitigation strategies including patching to version 24.1R4 or later, implementing proper input validation and output encoding mechanisms, and conducting comprehensive security assessments of their network management interfaces. The vulnerability highlights the critical importance of input sanitization in web applications and demonstrates how seemingly benign configuration interfaces can become attack vectors when proper security controls are not implemented. Security teams should also consider implementing web application firewalls and monitoring for suspicious script tag patterns in user-generated content to detect potential exploitation attempts. The remediation process must include thorough testing to ensure that the patch does not introduce regressions in legitimate CLI Configlet functionality while maintaining the security hardening measures that prevent future similar vulnerabilities from emerging.