CVE-2024-49775
📋 TL;DR
A heap-based buffer overflow vulnerability in Siemens industrial software products allows unauthenticated remote attackers to execute arbitrary code. Affected systems include Opcenter Execution Foundation, Opcenter Intelligence, Opcenter Quality, Opcenter RDnL, SIMATIC PCS neo, SINEC NMS, and TIA Portal versions. This critical vulnerability affects industrial control systems and manufacturing execution systems.
💻 Affected Systems
- Opcenter Execution Foundation
- Opcenter Intelligence
- Opcenter Quality
- Opcenter RDnL
- SIMATIC PCS neo
- SINEC NMS
- Totally Integrated Automation Portal (TIA Portal)
⚠️ 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
Complete system compromise leading to disruption of industrial processes, data theft, ransomware deployment, or physical damage to equipment.
Likely Case
Remote code execution allowing attackers to install malware, pivot to other systems, or disrupt manufacturing operations.
If Mitigated
Limited impact if systems are isolated, patched, or have network segmentation preventing external access.
🎯 Exploit Status
CVSS 9.8 indicates critical severity with low attack complexity and no authentication required. No public exploit code has been reported as of the advisory date.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Opcenter Execution Foundation V2501.0001, Opcenter Intelligence V2501.0001, Opcenter Quality V2512, Opcenter RDnL V2410, SIMATIC PCS neo V4.1 Update 3, SIMATIC PCS neo V5.0 Update 1, UMC V2.15 for SINEC NMS
Vendor Advisory: https://cert-portal.siemens.com/productcert/html/ssa-928984.html
Restart Required: Yes
Instructions:
1. Download appropriate patches from Siemens support portal. 2. Apply patches following Siemens installation guides. 3. Restart affected systems. 4. Verify patch installation through version checks.
🔧 Temporary Workarounds
Network Segmentation
allIsolate affected systems from untrusted networks and internet access
Firewall Rules
allBlock unnecessary inbound traffic to affected systems
🧯 If You Can't Patch
- Isolate affected systems in dedicated network segments with strict access controls
- Implement application whitelisting to prevent execution of unauthorized code
🔍 How to Verify
Check if Vulnerable:
Check installed versions against affected version ranges in Siemens advisoryCheck Version:
Check version through Siemens software interface or Windows Programs and FeaturesVerify Fix Applied:
Verify installed version matches or exceeds patched versions listed in fix information📡 Detection & Monitoring
Log Indicators:
- Unusual process creation
- Memory access violations
- Network connections to suspicious IPs
Network Indicators:
- Unexpected traffic to UMC component ports
- Anomalous protocol patterns
SIEM Query:
Process creation events from Siemens software components OR network connections to industrial control system ports from untrusted sources