CVE-2024-7941
📋 TL;DR
This vulnerability is an Open Redirect issue in Hitachi Energy products where an HTTP parameter can be manipulated to redirect users to malicious websites. Attackers can exploit this to conduct phishing attacks and steal credentials. Organizations using affected Hitachi Energy software are at risk.
💻 Affected Systems
- Hitachi Energy products with web interfaces
📦 What is this software?
Microscada X Sys600 by Hitachienergy
⚠️ Risk & Real-World Impact
Worst Case
Users are redirected to convincing phishing sites that steal login credentials, leading to account compromise and potential lateral movement within the organization.
Likely Case
Attackers create convincing phishing pages that harvest user credentials, leading to individual account compromises.
If Mitigated
With proper web filtering and user awareness training, most users would recognize suspicious redirects, limiting credential theft.
🎯 Exploit Status
Open redirect vulnerabilities are commonly exploited in phishing campaigns; exploitation requires user interaction
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Not specified in advisory - contact vendor
Vendor Advisory: https://publisher.hitachienergy.com/preview?DocumentID=8DBD000160&LanguageCode=en&DocumentPartId=&Action=Launch
Restart Required: Yes
Instructions:
1. Contact Hitachi Energy support for patch availability 2. Apply vendor-provided patches 3. Restart affected services 4. Verify fix implementation
🔧 Temporary Workarounds
Input Validation Filter
allImplement server-side validation to reject or sanitize URL parameters containing external domains
Web Application Firewall Rule
allConfigure WAF to block requests with suspicious redirect parameters
🧯 If You Can't Patch
- Implement strict web filtering to block known malicious domains
- Deploy user awareness training about phishing and suspicious redirects
🔍 How to Verify
Check if Vulnerable:
Test by appending a redirect parameter with external URL to application requests and observing if redirect occursCheck Version:
Check product documentation or administrative interface for version informationVerify Fix Applied:
Retest redirect attempts after patch; legitimate redirects should work while malicious ones should be blocked📡 Detection & Monitoring
Log Indicators:
- HTTP requests with suspicious redirect parameters
- Unusual outbound redirect patterns
Network Indicators:
- Redirects to unfamiliar domains
- HTTP 302/301 responses to non-whitelisted domains
SIEM Query:
web.url contains "redirect=" OR web.url contains "url=" AND NOT web.url contains trusted_domain