CVE-2023-37777

9.8 CRITICAL

📋 TL;DR

A critical SQL injection vulnerability in Synnefo Internet Management Software (IMS) allows attackers to execute arbitrary SQL commands via a specific API endpoint. This can lead to full database compromise with administrator privileges, potentially enabling OS command execution. All organizations using Synnefo IMS version 2023 or earlier are affected.

💻 Affected Systems

Products:
  • Synnefo Internet Management Software (IMS)
Versions: 2023 and earlier versions
Operating Systems: Any OS running Synnefo IMS
Default Config Vulnerable: ⚠️ Yes
Notes: All deployments with the vulnerable API endpoint are affected regardless of configuration.

⚠️ 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 compromise: attacker gains DB administrator access, extracts all sensitive data, executes arbitrary OS commands, and potentially takes full control of the server.

🟠

Likely Case

Database compromise leading to data theft, privilege escalation, and potential lateral movement within the network.

🟢

If Mitigated

Limited impact with proper input validation, parameterized queries, and network segmentation preventing full exploitation.

🌐 Internet-Facing: HIGH
🏢 Internal Only: HIGH

🎯 Exploit Status

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

The vulnerability is in a specific API endpoint parameter with public technical details available, making exploitation straightforward.

🛠️ Fix & Mitigation

✅ Official Fix

Patch Version: Unknown

Vendor Advisory: https://synnefoims.com/

Restart Required: No

Instructions:

1. Check vendor website for security updates. 2. Apply any available patches immediately. 3. Verify the fix by testing the vulnerable endpoint.

🔧 Temporary Workarounds

Input Validation and Sanitization

all

Implement strict input validation and parameterized queries for the vulnerable API endpoint.

Web Application Firewall Rules

all

Deploy WAF rules to block SQL injection patterns targeting the specific API endpoint.

🧯 If You Can't Patch

  • Isolate the Synnefo IMS system from the internet and restrict network access to authorized users only.
  • Implement network segmentation to limit the blast radius if exploitation occurs.

🔍 How to Verify

Check if Vulnerable:

Test the specific API endpoint with SQL injection payloads to see if queries can be manipulated.

Check Version:

Check Synnefo IMS version in the application interface or configuration files.

Verify Fix Applied:

Retest the vulnerable endpoint with SQL injection payloads to confirm they are properly rejected.

📡 Detection & Monitoring

Log Indicators:

  • Unusual SQL query patterns in application logs
  • Multiple failed login attempts followed by successful access
  • Unexpected database queries from application user

Network Indicators:

  • SQL injection patterns in HTTP requests to the API endpoint
  • Unusual outbound database connections

SIEM Query:

source="synnefo_logs" AND ("sql" OR "injection" OR "union select")

🔗 References

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