CVE-2025-5377
📋 TL;DR
A cross-site scripting (XSS) vulnerability in Astun Technology iShare Maps 5.4.0 allows attackers to inject malicious scripts via the Zoom parameter in historic1.asp. This affects users who access the vulnerable page, potentially leading to session hijacking or credential theft. The vulnerability is remotely exploitable and has public exploit details available.
💻 Affected Systems
- Astun Technology iShare Maps
📦 What is this software?
Ishare Maps by Astuntechnology
⚠️ Risk & Real-World Impact
Worst Case
Attackers could steal user sessions, credentials, or redirect users to malicious sites, potentially compromising administrative accounts and gaining unauthorized access to the mapping system.
Likely Case
Attackers inject malicious scripts that execute in users' browsers, potentially stealing session cookies or performing actions on behalf of authenticated users.
If Mitigated
With proper input validation and output encoding, the XSS payloads would be neutralized, preventing script execution while maintaining functionality.
🎯 Exploit Status
Exploit details are publicly available on vuldb.com. The vulnerability requires user interaction (visiting a malicious link) but doesn't require authentication.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Unknown
Vendor Advisory: None available
Restart Required: No
Instructions:
No official patch available. Contact Astun Technology for updates or apply workarounds.
🔧 Temporary Workarounds
Input Validation and Sanitization
allImplement server-side validation and sanitization of the Zoom parameter in historic1.asp to remove or encode malicious characters.
Modify historic1.asp to validate Zoom parameter input using regex patterns and HTML encode output
Web Application Firewall (WAF) Rules
allDeploy WAF rules to block XSS payloads targeting the Zoom parameter.
Add WAF rule: Block requests containing <script>, javascript:, or other XSS patterns in Zoom parameter
🧯 If You Can't Patch
- Restrict access to historic1.asp using network controls or authentication
- Implement Content Security Policy (CSP) headers to mitigate XSS impact
🔍 How to Verify
Check if Vulnerable:
Test by injecting XSS payloads into the Zoom parameter of historic1.asp (e.g., <script>alert('XSS')</script>) and check if script executes.Check Version:
Check iShare Maps version in administrative interface or configuration files.Verify Fix Applied:
After applying fixes, retest with XSS payloads to ensure scripts don't execute and input is properly sanitized.📡 Detection & Monitoring
Log Indicators:
- HTTP requests to historic1.asp with suspicious Zoom parameter values containing script tags or encoded payloads
Network Indicators:
- Unusual traffic patterns to historic1.asp with long or encoded parameters
SIEM Query:
source="web_logs" AND uri="*historic1.asp*" AND (param="*<script>*" OR param="*javascript:*")