CVE-2025-8857

9.8 CRITICAL

📋 TL;DR

Clinic Image System contains hard-coded administrator credentials in its source code, allowing unauthenticated remote attackers to gain full system access. This affects all deployments of the vulnerable software version. Attackers can completely compromise affected systems without any authentication.

💻 Affected Systems

Products:
  • Clinic Image System
Versions: All versions prior to patch
Operating Systems: All supported platforms
Default Config Vulnerable: ⚠️ Yes
Notes: All deployments are vulnerable by default due to hard-coded credentials in source code

⚠️ 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.

Recommended Actions:
  1. Review the CVE details at NVD
  2. Check vendor security advisories for your specific version
  3. Test if the vulnerability is exploitable in your environment
  4. Consider updating to the latest version as a precaution

⚠️ Risk & Real-World Impact

🔴

Worst Case

Complete system takeover, data theft, ransomware deployment, and use as pivot point for network attacks

🟠

Likely Case

Unauthorized access to patient data, system configuration changes, and installation of backdoors

🟢

If Mitigated

Limited impact if system is isolated behind strict network controls and not internet-facing

🌐 Internet-Facing: HIGH - Direct remote exploitation without authentication
🏢 Internal Only: HIGH - Internal attackers or compromised devices can exploit this

🎯 Exploit Status

Public PoC: ⚠️ Yes
Weaponized: CONFIRMED
Unauthenticated Exploit: ⚠️ Yes
Complexity: LOW

Attackers only need to know the hard-coded credentials, which are publicly disclosed

🛠️ Fix & Mitigation

✅ Official Fix

Patch Version: Latest version from vendor

Vendor Advisory: https://www.twcert.org.tw/en/cp-139-10363-601c9-2.html

Restart Required: Yes

Instructions:

1. Contact Changing vendor for patched version 2. Apply patch to all affected systems 3. Change all administrator passwords 4. Restart services

🔧 Temporary Workarounds

Network Isolation

linux

Block external access to Clinic Image System

iptables -A INPUT -p tcp --dport [SYSTEM_PORT] -j DROP

Access Control

linux

Restrict access to trusted IP addresses only

iptables -A INPUT -p tcp --dport [SYSTEM_PORT] -s [TRUSTED_IP] -j ACCEPT
iptables -A INPUT -p tcp --dport [SYSTEM_PORT] -j DROP

🧯 If You Can't Patch

  • Immediately change all administrator passwords and implement multi-factor authentication
  • Deploy network segmentation and restrict system access to only necessary users

🔍 How to Verify

Check if Vulnerable:

Attempt to authenticate using publicly disclosed hard-coded credentials

Check Version:

Check system version in admin panel or contact vendor

Verify Fix Applied:

Verify authentication fails with old credentials and new credentials are required

📡 Detection & Monitoring

Log Indicators:

  • Multiple failed login attempts followed by successful login with default credentials
  • Administrator logins from unusual IP addresses

Network Indicators:

  • Unauthenticated login attempts to admin interface
  • Traffic patterns matching credential brute-forcing

SIEM Query:

source="clinic_image_system" AND (event="login_success" OR event="authentication") AND user="admin"

🔗 References

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