CVE-2025-51543
📋 TL;DR
CVE-2025-51543 is an authentication bypass vulnerability in Cicool builder that allows unauthenticated attackers to reset the administrator password via the /administrator/auth/reset_password endpoint. This affects all organizations using Cicool builder 3.4.4, potentially granting attackers full administrative control over affected systems.
💻 Affected Systems
- Cicool builder
⚠️ 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 where attackers gain administrative access, install backdoors, exfiltrate sensitive data, and potentially pivot to other systems in the network.
Likely Case
Attackers reset admin password, gain administrative privileges, modify system configurations, and potentially deploy malware or ransomware.
If Mitigated
Limited impact if proper network segmentation, strong authentication controls, and monitoring are in place to detect and block exploitation attempts.
🎯 Exploit Status
Proof of concept is publicly available on GitHub, making exploitation trivial for attackers with basic technical skills.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Unknown
Vendor Advisory: Unknown
Restart Required: No
Instructions:
No official patch available. Monitor vendor website and GitHub repository for updates. Consider upgrading to newer versions if available.
🔧 Temporary Workarounds
Block Reset Password Endpoint
allBlock access to the vulnerable /administrator/auth/reset_password endpoint using web application firewall or reverse proxy rules.
# For Apache: RewriteRule ^/administrator/auth/reset_password - [F,L]
# For Nginx: location ~* ^/administrator/auth/reset_password { return 403; }
Restrict Network Access
linuxLimit access to the Cicool builder administration interface to trusted IP addresses only.
# Example firewall rule: iptables -A INPUT -p tcp --dport 80 -s TRUSTED_IP -j ACCEPT
# iptables -A INPUT -p tcp --dport 80 -j DROP
🧯 If You Can't Patch
- Implement strong network segmentation to isolate Cicool builder instances from critical systems
- Enable detailed logging and monitoring for authentication events and failed login attempts
🔍 How to Verify
Check if Vulnerable:
Check if Cicool builder version is 3.4.4 by examining the application interface or configuration files. Test if /administrator/auth/reset_password endpoint is accessible without authentication.Check Version:
Check application configuration files or admin interface for version information. No standard command available.Verify Fix Applied:
Verify that the /administrator/auth/reset_password endpoint returns 403 Forbidden or is inaccessible. Confirm no unauthorized password reset attempts succeed.📡 Detection & Monitoring
Log Indicators:
- Unusual POST requests to /administrator/auth/reset_password
- Multiple failed authentication attempts followed by successful admin login from new IP
- Administrator password reset events from unexpected sources
Network Indicators:
- HTTP POST requests to /administrator/auth/reset_password endpoint
- Unusual traffic patterns to administration interface
SIEM Query:
source="web_logs" AND (url="/administrator/auth/reset_password" OR (event_type="password_reset" AND user="admin"))