CVE-2024-41197
📋 TL;DR
This vulnerability in Ocuco Innovation's INVCLIENT.EXE allows attackers to bypass authentication and gain Administrator privileges by sending a specially crafted TCP packet. It affects version 2.10.24.5 of the software. Organizations using this specific version are at risk of complete system compromise.
💻 Affected Systems
- Ocuco Innovation INVCLIENT.EXE
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Full system compromise with administrative access, allowing data theft, system destruction, or ransomware deployment across the network.
Likely Case
Unauthorized administrative access leading to data exfiltration, privilege escalation, and lateral movement within the network.
If Mitigated
Limited impact if proper network segmentation and access controls prevent exploitation attempts.
🎯 Exploit Status
The references include detailed disclosure with technical details, making exploitation straightforward for attackers with basic networking knowledge.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Unknown
Vendor Advisory: Not available
Restart Required: No
Instructions:
No official patch is currently available. Monitor vendor channels for updates and apply immediately when released.
🔧 Temporary Workarounds
Network Segmentation
windowsRestrict network access to INVCLIENT.EXE service using firewall rules to only allow connections from trusted sources.
Windows Firewall: New-NetFirewallRule -DisplayName "Block INVCLIENT" -Direction Inbound -Program "C:\Path\To\INVCLIENT.EXE" -Action Block
Alternative: Configure network ACLs on routers/switches to restrict TCP traffic to the service port
Service Disablement
windowsTemporarily disable the INVCLIENT.EXE service if not critically needed for operations.
sc stop INVCLIENT
sc config INVCLIENT start= disabled
🧯 If You Can't Patch
- Implement strict network access controls to limit which systems can communicate with the vulnerable service
- Monitor network traffic for anomalous TCP packets to the INVCLIENT.EXE service port and implement intrusion detection rules
🔍 How to Verify
Check if Vulnerable:
Check if INVCLIENT.EXE version 2.10.24.5 is running on the system. Use: wmic process where "name='invclient.exe'" get executablepath,commandlineCheck Version:
Right-click INVCLIENT.EXE → Properties → Details tab, or use: wmic datafile where name='C:\\Path\\To\\INVCLIENT.EXE' get versionVerify Fix Applied:
Verify the service is no longer accessible on the network or has been updated to a patched version. Use: netstat -ano | findstr :[PORT] where [PORT] is the service port📡 Detection & Monitoring
Log Indicators:
- Failed authentication attempts followed by successful administrative access
- Unexpected process creation with administrative privileges from INVCLIENT.EXE
Network Indicators:
- TCP packets to INVCLIENT.EXE service port with unusual payload patterns
- Network connections from untrusted sources to the service port
SIEM Query:
source="windows-security" EventID=4625 AND ProcessName="*INVCLIENT.EXE*" | stats count by src_ip🔗 References
- https://drive.google.com/file/d/1XgbcJqYIHxAROcCACdgdD8V_97Hcwdze/view?usp=drive_link
- https://gist.githubusercontent.com/john0x186/1d9cc7fcc8386480d2bdaa9fdcfa914b/raw/d2d3d74ccaa939127ee2b03139061509a7dd238c/full-disclosure.md
- https://gist.githubusercontent.com/john0x186/1d9cc7fcc8386480d2bdaa9fdcfa914b/raw/d2d3d74ccaa939127ee2b03139061509a7dd238c/full-disclosure.md
