CVE-2024-22632

9.8 CRITICAL

📋 TL;DR

This vulnerability allows unauthenticated attackers to execute arbitrary code on affected S.I.L. 388 systems by sending a specially crafted POST request containing malicious code in the hmsg parameter. All organizations using Setor Informatica Sistema Inteligente para Laboratorios (S.I.L.) 388 are affected.

💻 Affected Systems

Products:
  • Setor Informatica Sistema Inteligente para Laboratorios (S.I.L.)
Versions: Version 388
Operating Systems: Windows, Linux
Default Config Vulnerable: ⚠️ Yes
Notes: The vulnerability affects the web interface component of S.I.L. 388. No special configuration is required for exploitation.

⚠️ 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 allowing attackers to install malware, steal sensitive data, pivot to other systems, or deploy ransomware across the network.

🟠

Likely Case

Attackers gain initial foothold on vulnerable systems, install backdoors, and potentially move laterally within the network to access sensitive laboratory data.

🟢

If Mitigated

Attack attempts are detected and blocked before exploitation, with minimal impact due to network segmentation and proper access controls.

🌐 Internet-Facing: HIGH - The vulnerability is remotely exploitable via HTTP POST requests, making internet-facing instances immediately vulnerable to widespread attacks.
🏢 Internal Only: HIGH - Even internally hosted systems are vulnerable to attackers who gain network access through phishing, compromised accounts, or other initial access vectors.

🎯 Exploit Status

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

The exploit requires sending a single HTTP POST request with malicious payload in the hmsg parameter. Public proof-of-concept code is available.

🛠️ Fix & Mitigation

✅ Official Fix

Patch Version: Unknown

Vendor Advisory: Unknown

Restart Required: No

Instructions:

No official patch is currently available. Monitor vendor communications for updates and apply immediately when released.

🔧 Temporary Workarounds

Web Application Firewall (WAF) Rules

all

Block or sanitize requests containing suspicious hmsg parameter values

WAF-specific configuration required

Network Segmentation

all

Isolate S.I.L. systems from internet and restrict internal access

Firewall rules to block external access to S.I.L. ports

🧯 If You Can't Patch

  • Take affected systems offline immediately if business criticality allows
  • Implement strict network access controls allowing only necessary connections from authorized IP addresses

🔍 How to Verify

Check if Vulnerable:

Check if running S.I.L. version 388. Attempt to access the web interface and verify the version in the interface or configuration files.

Check Version:

Check application interface or configuration files for version information. No standard command available.

Verify Fix Applied:

Verify vendor patch has been applied and test that crafted POST requests to the hmsg parameter no longer execute code.

📡 Detection & Monitoring

Log Indicators:

  • Unusual POST requests to S.I.L. endpoints with hmsg parameter
  • Suspicious process creation from web server user
  • Unexpected network connections from S.I.L. system

Network Indicators:

  • HTTP POST requests containing base64-encoded or suspicious content in hmsg parameter
  • Outbound connections from S.I.L. system to unknown external IPs

SIEM Query:

source="web_server_logs" AND uri="*hmsg=*" AND method="POST" | stats count by src_ip

🔗 References

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