CVE-2025-4596
📋 TL;DR
CVE-2025-4596 is an authorization bypass vulnerability in Asseco ADMX medical records system that allows authenticated users to access other users' medical files by manipulating document ID parameters in GET requests. This affects all Asseco ADMX installations with vulnerable versions. The vulnerability enables unauthorized access to sensitive medical records.
💻 Affected Systems
- Asseco ADMX
⚠️ Manual Verification Required
This CVE does not have specific version information in our database, so automatic vulnerability detection cannot determine if your system is affected.
Why? The CVE database entry doesn't specify which versions are vulnerable (no version ranges provided by the vendor/NVD).
🔒 Custom verification scripts are available for registered users. Sign up free to download automated test scripts.
- Review the CVE details at NVD
- Check vendor security advisories for your specific version
- Test if the vulnerability is exploitable in your environment
- Consider updating to the latest version as a precaution
⚠️ Risk & Real-World Impact
Worst Case
Mass exposure of sensitive medical records including diagnoses, treatments, and personal health information, potentially affecting thousands of patients and leading to regulatory violations, lawsuits, and reputational damage.
Likely Case
Targeted access to specific patients' medical records by malicious insiders or attackers who have compromised legitimate user accounts, resulting in privacy violations and potential medical identity theft.
If Mitigated
Limited exposure if proper access controls, monitoring, and network segmentation are implemented, with potential detection of anomalous access patterns before significant data exfiltration occurs.
🎯 Exploit Status
Exploitation requires authenticated access but is trivial once an attacker has valid credentials. The vulnerability involves simple parameter manipulation in HTTP requests.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 6.09.01.62
Vendor Advisory: https://cert.pl/en/posts/2026/01/CVE-2025-4596
Restart Required: Yes
Instructions:
1. Backup current ADMX installation and database. 2. Download version 6.09.01.62 from Asseco vendor portal. 3. Run the installer with administrative privileges. 4. Restart the ADMX service and web server. 5. Verify functionality and access controls.
🔧 Temporary Workarounds
Web Application Firewall Rule
allImplement WAF rules to detect and block suspicious document ID parameter manipulation patterns in GET requests.
WAF-specific configuration commands depend on vendor
Enhanced Logging and Monitoring
allEnable detailed audit logging for document access attempts and implement real-time alerts for unusual access patterns.
Configure application logging to capture user ID, document ID, timestamp, and IP address for all document access requests
🧯 If You Can't Patch
- Implement strict network segmentation to isolate ADMX system from unnecessary network access
- Enforce principle of least privilege for user accounts and implement multi-factor authentication
🔍 How to Verify
Check if Vulnerable:
Test with two different authenticated user accounts - attempt to access a document belonging to another user by manipulating the document ID parameter in a GET request.Check Version:
Check ADMX version in application interface or via 'About' section in web interfaceVerify Fix Applied:
After patching, repeat the vulnerability test - attempts to access other users' documents should be properly blocked with appropriate authorization errors.📡 Detection & Monitoring
Log Indicators:
- Multiple document access attempts by single user across different patient IDs
- Rapid sequential access to documents with different IDs
- Access attempts to document IDs outside user's normal scope
Network Indicators:
- Unusual patterns of GET requests with manipulated ID parameters
- High volume of document access requests from single source
SIEM Query:
source="admx_logs" action="document_access" | stats count by user_id, document_id | where count > threshold