CVE-2023-27376
📋 TL;DR
This vulnerability allows unauthenticated attackers to extract sensitive student data from IDAttend's IDWeb application. It affects organizations using IDWeb version 3.1.052 and earlier. The StudentPopupDetails_StudentDetails method lacks proper authentication controls.
💻 Affected Systems
- IDAttend IDWeb
📦 What is this software?
Idweb by Idattend
⚠️ Risk & Real-World Impact
Worst Case
Mass extraction of all student personal data including names, IDs, contact information, and potentially other sensitive records stored in the system.
Likely Case
Targeted data harvesting of student information for identity theft, social engineering, or other malicious purposes.
If Mitigated
No data exposure if proper network segmentation and authentication controls prevent access to vulnerable endpoints.
🎯 Exploit Status
The vulnerability requires no authentication and appears to be a direct API/endpoint access issue, making exploitation straightforward.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Version 3.1.053 or later
Vendor Advisory: https://www.themissinglink.com.au/security-advisories/cve-2023-27376
Restart Required: Yes
Instructions:
1. Download the latest version from IDAttend vendor
2. Backup current installation and database
3. Install the updated version following vendor instructions
4. Restart the IDWeb application service
🔧 Temporary Workarounds
Network Access Control
allRestrict network access to the IDWeb application to only authorized users and systems
Web Application Firewall Rules
allBlock access to the StudentPopupDetails_StudentDetails endpoint
WAF rule to block: /StudentPopupDetails_StudentDetails*
🧯 If You Can't Patch
- Implement strict network segmentation to isolate the IDWeb application from untrusted networks
- Deploy a reverse proxy with authentication requirements for all IDWeb endpoints
🔍 How to Verify
Check if Vulnerable:
Attempt to access the StudentPopupDetails_StudentDetails endpoint without authentication. If student data is returned, the system is vulnerable.Check Version:
Check the IDWeb application version in the admin interface or application filesVerify Fix Applied:
After patching, attempt the same unauthenticated access. The endpoint should now require proper authentication or return an error.📡 Detection & Monitoring
Log Indicators:
- Multiple unauthenticated requests to StudentPopupDetails_StudentDetails endpoint
- Unusual data export patterns from student databases
Network Indicators:
- Unusual traffic patterns to IDWeb application from external IPs
- Bursts of requests to specific student data endpoints
SIEM Query:
source="idweb" AND (uri="*StudentPopupDetails_StudentDetails*" AND auth_status="failed")