CVE-2024-6918
📋 TL;DR
A buffer overflow vulnerability in Accutech Manager allows attackers to crash the service by sending specially crafted requests to port 2536/TCP. This affects systems running vulnerable versions of Schneider Electric's Accutech Manager software. The vulnerability could potentially lead to denial of service or remote code execution.
💻 Affected Systems
- Schneider Electric Accutech Manager
⚠️ 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.
- Review the CVE details at NVD
- Check vendor security advisories for your specific version
- Test if the vulnerability is exploitable in your environment
- Consider updating to the latest version as a precaution
⚠️ Risk & Real-World Impact
Worst Case
Remote code execution leading to complete system compromise, data theft, or lateral movement within the network.
Likely Case
Denial of service causing Accutech Manager to crash, disrupting industrial monitoring and control operations.
If Mitigated
Limited impact with proper network segmentation and access controls preventing exploitation attempts.
🎯 Exploit Status
Exploitation requires sending specially crafted network packets to port 2536/TCP, which is relatively straightforward for attackers with network access.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Not specified in CVE description - check vendor advisory for specific version
Vendor Advisory: https://download.schneider-electric.com/files?p_Doc_Ref=SEVD-2024-226-01&p_enDocType=Security+and+Safety+Notice&p_File_Name=SEVD-2024-226-01.pdf
Restart Required: Yes
Instructions:
1. Download the patch from Schneider Electric's security advisory. 2. Stop the Accutech Manager service. 3. Apply the patch according to vendor instructions. 4. Restart the Accutech Manager service. 5. Verify the service is running correctly.
🔧 Temporary Workarounds
Network Access Control
allRestrict access to port 2536/TCP using firewall rules to only allow connections from authorized systems.
# Windows Firewall: New-NetFirewallRule -DisplayName "Block Accutech Port" -Direction Inbound -LocalPort 2536 -Protocol TCP -Action Block
# Linux iptables: iptables -A INPUT -p tcp --dport 2536 -j DROP
Service Disablement
windowsTemporarily disable the Accutech Manager service if not critically needed while awaiting patch deployment.
# Windows: sc stop "Accutech Manager"
# Windows: sc config "Accutech Manager" start= disabled
🧯 If You Can't Patch
- Implement strict network segmentation to isolate Accutech Manager systems from untrusted networks
- Deploy intrusion detection/prevention systems to monitor and block exploitation attempts on port 2536/TCP
🔍 How to Verify
Check if Vulnerable:
Check if Accutech Manager is running and listening on port 2536/TCP using netstat or similar tools: netstat -an | findstr :2536 (Windows) or netstat -tlnp | grep :2536 (Linux)Check Version:
Check the software version through Accutech Manager's about dialog or installation properties.Verify Fix Applied:
Verify the patched version is installed by checking the software version in Accutech Manager interface or installation directory.📡 Detection & Monitoring
Log Indicators:
- Accutech Manager service crash logs
- Unexpected termination of Accutech Manager process
- Error messages related to buffer overflow or memory corruption
Network Indicators:
- Unusual traffic patterns to port 2536/TCP
- Multiple connection attempts to port 2536 from single source
- Malformed packets sent to port 2536
SIEM Query:
source="accutech.log" AND ("crash" OR "buffer overflow" OR "access violation") OR destination_port=2536 AND (packet_size>normal OR malformed_packet=true)