CVE-2021-41694
📋 TL;DR
This vulnerability allows unauthenticated attackers to change any user's password in Premiumdatingscript 4.2.7.7 due to improper access controls in the password change function. It affects all users of this specific version of the dating script software, potentially leading to account takeover.
💻 Affected Systems
- Premiumdatingscript
📦 What is this software?
Premiumdatingscript by Globaldatingsoftware
⚠️ Risk & Real-World Impact
Worst Case
Attackers could compromise all user accounts, including administrators, leading to full system control, data theft, or service disruption.
Likely Case
Attackers change passwords for targeted or random users, causing account lockouts, unauthorized access to personal data, and potential further exploitation.
If Mitigated
With proper network segmentation and monitoring, impact may be limited to isolated account compromises, but the core vulnerability remains exploitable.
🎯 Exploit Status
Exploitation is straightforward via crafted HTTP requests to the vulnerable endpoint, as detailed in public references.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Update to a version later than 4.2.7.7 (check vendor for specific fixed version)
Vendor Advisory: Not provided in references; check with Premiumdatingscript vendor.
Restart Required: No
Instructions:
1. Backup the current installation. 2. Download the latest version from the vendor. 3. Replace the vulnerable files, especially requests/user.php. 4. Test functionality.
🔧 Temporary Workarounds
Restrict access to password change endpoint
linuxUse web server rules (e.g., .htaccess for Apache) to block or restrict access to the vulnerable file.
# Example for Apache: add to .htaccess
<Files "user.php">
Deny from all
</Files>
🧯 If You Can't Patch
- Implement strong network segmentation to isolate the vulnerable server and limit exposure.
- Enable detailed logging and monitoring for suspicious password change attempts to detect exploitation.
🔍 How to Verify
Check if Vulnerable:
Review the version in the script's configuration or admin panel; if it is 4.2.7.7, it is vulnerable.Check Version:
# Check version in script files or database; no universal command, inspect source code for version info.Verify Fix Applied:
After patching, test the password change functionality with unauthorized requests to ensure access controls are enforced.📡 Detection & Monitoring
Log Indicators:
- Unusual POST requests to requests/user.php from unauthenticated IPs
- Multiple failed or successful password change logs for different users
Network Indicators:
- HTTP traffic patterns targeting the vulnerable endpoint without authentication
SIEM Query:
Example: source="web_logs" AND url="/requests/user.php" AND status=200 AND user="-"