CVE-2025-0875
📋 TL;DR
This vulnerability allows attackers to bypass authorization controls in PROLIZ OBS Student Affairs Information System by manipulating user-controlled parameters. It affects all systems running versions before v26.0328, potentially enabling unauthorized access to sensitive student data and administrative functions.
💻 Affected Systems
- PROLIZ Computer Software Hardware Service Trade Ltd. Co. OBS (Student Affairs Information System)
⚠️ 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
Complete system compromise allowing attackers to access, modify, or delete all student records, alter grades, change enrollment status, and perform administrative functions without authorization.
Likely Case
Unauthorized access to sensitive student information including personal data, academic records, and financial information, potentially leading to data theft or manipulation.
If Mitigated
Limited impact with proper input validation and authorization checks in place, potentially only allowing access to non-sensitive functions.
🎯 Exploit Status
Parameter injection vulnerabilities typically require minimal technical skill to exploit once the attack vector is identified. No public exploit code is currently available.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: v26.0328
Vendor Advisory: https://www.usom.gov.tr/bildirim/tr-25-0282
Restart Required: Yes
Instructions:
1. Contact PROLIZ support for the v26.0328 update package. 2. Backup current system and database. 3. Apply the update following vendor instructions. 4. Restart the OBS application services. 5. Verify functionality post-update.
🔧 Temporary Workarounds
Input Validation Filter
allImplement strict input validation and sanitization for all user-controlled parameters
Configure web application firewall rules to block parameter manipulation attempts
Implement server-side validation for all input parameters
Access Restriction
allRestrict network access to the OBS system
Configure firewall rules to allow only trusted IP addresses
Implement VPN access for remote users
🧯 If You Can't Patch
- Implement strict network segmentation and isolate the OBS system from untrusted networks
- Deploy a web application firewall (WAF) with rules specifically targeting parameter injection attacks
🔍 How to Verify
Check if Vulnerable:
Check the OBS system version in the application settings or about dialog. If version is below v26.0328, the system is vulnerable.Check Version:
Check the application version in the OBS system settings or consult the system administrator for version information.Verify Fix Applied:
After updating to v26.0328, test authorization controls by attempting to access restricted functions with manipulated parameters. All unauthorized access attempts should be blocked.📡 Detection & Monitoring
Log Indicators:
- Unusual parameter values in HTTP requests
- Failed authorization attempts followed by successful access
- Access to administrative functions from non-admin accounts
Network Indicators:
- HTTP requests with manipulated parameter values
- Unusual access patterns to sensitive endpoints
SIEM Query:
source="obs_logs" AND (param* CONTAINS "../" OR param* CONTAINS "..\\" OR param* MATCHES "[^a-zA-Z0-9_-]")