CVE-2025-59982

6.1 MEDIUM

📋 TL;DR

This cross-site scripting vulnerability in Juniper Junos Space allows attackers to inject malicious scripts into the dashboard search field. When another user views the compromised dashboard, the attacker can execute commands with that user's permissions, potentially including administrative access. All Junos Space versions before 24.1R4 are affected.

💻 Affected Systems

Products:
  • Juniper Networks Junos Space
Versions: All versions before 24.1R4
Operating Systems: Not OS-specific - affects Junos Space application
Default Config Vulnerable: ⚠️ Yes
Notes: Affects the dashboard search functionality specifically; requires user interaction to trigger the exploit.

📦 What is this software?

⚠️ Risk & Real-World Impact

🔴

Worst Case

Administrator account compromise leading to full system takeover, data exfiltration, and lateral movement within the network.

🟠

Likely Case

Session hijacking of authenticated users, credential theft, and unauthorized actions performed with user privileges.

🟢

If Mitigated

Limited impact with proper input validation and output encoding in place, potentially only affecting non-sensitive user sessions.

🌐 Internet-Facing: HIGH if Junos Space is exposed to the internet, as attackers can target any user accessing the dashboard.
🏢 Internal Only: MEDIUM for internal networks, requiring attacker access to the internal network or a compromised internal system.

🎯 Exploit Status

Public PoC: ✅ No
Weaponized: UNKNOWN
Unauthenticated Exploit: ✅ No
Complexity: MEDIUM

Requires attacker to inject script into search field and victim to view/search results; reflected XSS attack vector.

🛠️ Fix & Mitigation

✅ Official Fix

Patch Version: 24.1R4 or later

Vendor Advisory: https://supportportal.juniper.net/JSA103140

Restart Required: No

Instructions:

1. Download Junos Space 24.1R4 or later from Juniper support portal. 2. Backup current configuration. 3. Apply the update following Juniper's upgrade procedures. 4. Verify successful update.

🔧 Temporary Workarounds

Input Validation Enhancement

all

Implement additional input validation and output encoding for search field inputs

Custom application modification required - no direct commands

🧯 If You Can't Patch

  • Implement web application firewall (WAF) with XSS protection rules
  • Restrict access to Junos Space dashboard to trusted users only using network segmentation

🔍 How to Verify

Check if Vulnerable:

Check Junos Space version via web interface or CLI; if version is earlier than 24.1R4, system is vulnerable.

Check Version:

show version (from Junos Space CLI) or check About page in web interface

Verify Fix Applied:

Verify Junos Space version is 24.1R4 or later and test search functionality with XSS payloads.

📡 Detection & Monitoring

Log Indicators:

  • Unusual search queries containing script tags or JavaScript code
  • Multiple failed login attempts following suspicious searches

Network Indicators:

  • HTTP requests with script tags in search parameters
  • Unusual outbound connections from Junos Space server

SIEM Query:

source="junos-space" AND (http_uri="*search*" AND (http_query="*<script*" OR http_query="*javascript:*"))

🔗 References

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