CVE-2024-51051

9.8 CRITICAL

📋 TL;DR

AVSCMS v8.2.0 uses weak default credentials for the Administrator account, allowing attackers to gain administrative access to the CMS. This affects all installations using the default configuration. Attackers can take full control of affected systems.

💻 Affected Systems

Products:
  • AVSCMS
Versions: v8.2.0
Operating Systems: All
Default Config Vulnerable: ⚠️ Yes
Notes: Only affects installations using default credentials. Customized installations with strong passwords are not vulnerable.

⚠️ 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 compromise of the CMS with administrative privileges, allowing data theft, defacement, malware deployment, and lateral movement to connected systems.

🟠

Likely Case

Unauthorized administrative access leading to website defacement, data exfiltration, or installation of backdoors.

🟢

If Mitigated

Limited impact if strong credentials are already configured, though default installations remain vulnerable.

🌐 Internet-Facing: HIGH - Internet-facing installations are directly accessible to attackers who can attempt default credentials.
🏢 Internal Only: MEDIUM - Internal systems are still vulnerable to insider threats or compromised internal accounts.

🎯 Exploit Status

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

Exploitation requires only knowledge of default credentials and access to the login page.

🛠️ Fix & Mitigation

✅ Official Fix

Patch Version: Not available

Vendor Advisory: Not available

Restart Required: No

Instructions:

1. Log into AVSCMS admin panel. 2. Navigate to user management. 3. Change Administrator account password to a strong, unique password. 4. Enable multi-factor authentication if available.

🔧 Temporary Workarounds

Change Default Credentials

all

Immediately change the default Administrator password to a strong, unique password.

Restrict Admin Access

all

Implement IP whitelisting or network segmentation to restrict access to the admin interface.

🧯 If You Can't Patch

  • Implement network-level controls to restrict access to the admin interface from untrusted networks.
  • Deploy a web application firewall (WAF) with credential stuffing protection and brute force detection.

🔍 How to Verify

Check if Vulnerable:

Check if you can log into the AVSCMS admin panel using default credentials (typically admin/admin or similar weak combinations).

Check Version:

Check the AVSCMS version in the admin panel or by examining the software files.

Verify Fix Applied:

Attempt to log in with default credentials - access should be denied. Verify strong password is set for Administrator account.

📡 Detection & Monitoring

Log Indicators:

  • Multiple failed login attempts followed by successful login to Administrator account
  • Login from unusual IP addresses to admin panel

Network Indicators:

  • Unusual traffic patterns to /admin/ paths
  • Credential stuffing attacks against login endpoints

SIEM Query:

source="avscms_logs" AND (event="login_success" AND user="Administrator") OR (event="login_failed" AND user="Administrator" AND count>5)

🔗 References

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