CVE-2020-7532
📋 TL;DR
This vulnerability allows remote code execution on SCADAPack x70 Security Administrator systems through malicious .SDB files. Attackers can execute arbitrary code by crafting specially serialized data. Affects SCADAPack x70 Security Administrator version 1.2.0 and earlier.
💻 Affected Systems
- SCADAPack x70 Security Administrator
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Full system compromise allowing attacker to execute arbitrary code with system privileges, potentially leading to SCADA system manipulation, data theft, or disruption of industrial operations.
Likely Case
Attackers gain initial foothold on SCADA systems, enabling lateral movement within industrial networks and potential disruption of operational technology.
If Mitigated
Limited impact due to network segmentation and proper access controls preventing malicious .SDB file delivery.
🎯 Exploit Status
Exploitation requires attacker to craft malicious .SDB file and deliver it to target system, likely requiring some level of access or social engineering.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Version 1.2.1 or later
Vendor Advisory: https://www.se.com/ww/en/download/document/SEVD-2020-252-01/
Restart Required: Yes
Instructions:
1. Download updated version from Schneider Electric website. 2. Backup existing configuration. 3. Install updated software. 4. Restart system. 5. Verify installation.
🔧 Temporary Workarounds
Restrict .SDB file processing
windowsLimit who can upload or process .SDB files on the system
Network segmentation
allIsolate SCADA systems from general corporate networks
🧯 If You Can't Patch
- Implement strict access controls to prevent unauthorized .SDB file uploads
- Deploy application whitelisting to prevent execution of unauthorized binaries
🔍 How to Verify
Check if Vulnerable:
Check software version in Help > About menu; if version is 1.2.0 or earlier, system is vulnerable.Check Version:
Check Help > About in SCADAPack x70 Security Administrator GUIVerify Fix Applied:
Verify software version shows 1.2.1 or later after update installation.📡 Detection & Monitoring
Log Indicators:
- Unusual .SDB file processing activity
- Unexpected process execution following .SDB file access
Network Indicators:
- Unusual file transfers to SCADA systems
- Anomalous network connections from SCADA systems
SIEM Query:
source="scada_system" AND (event="file_upload" AND file_extension=".sdb") OR (process_execution AFTER file_access=".sdb")