CVE-2023-1142
📋 TL;DR
This vulnerability in Delta Electronics InfraSuite Device Master allows attackers to bypass authentication and retrieve sensitive system files and credentials through URL decoding manipulation. It affects all versions prior to 1.0.5, potentially impacting industrial control systems using this software for device management.
💻 Affected Systems
- Delta Electronics InfraSuite Device Master
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Full system compromise with attacker gaining administrative privileges, accessing all device credentials, and potentially disrupting industrial operations.
Likely Case
Unauthorized access to sensitive configuration files and credentials, leading to privilege escalation and further system exploitation.
If Mitigated
Limited impact with proper network segmentation and access controls preventing exploitation attempts.
🎯 Exploit Status
URL decoding manipulation is a well-known technique requiring minimal technical skill to exploit.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 1.0.5
Vendor Advisory: https://www.cisa.gov/news-events/ics-advisories/icsa-23-080-02
Restart Required: Yes
Instructions:
1. Download InfraSuite Device Master version 1.0.5 from Delta Electronics. 2. Backup current configuration. 3. Install the update following vendor instructions. 4. Restart the service/application.
🔧 Temporary Workarounds
Network Segmentation
allIsolate InfraSuite Device Master from untrusted networks and internet access.
Access Control Lists
allRestrict access to the web interface using firewall rules to only trusted IP addresses.
🧯 If You Can't Patch
- Implement strict network segmentation to isolate the vulnerable system
- Monitor for suspicious URL decoding patterns in web server logs
🔍 How to Verify
Check if Vulnerable:
Check InfraSuite Device Master version in application interface or installation directory. Versions below 1.0.5 are vulnerable.Check Version:
Check application GUI or installation properties for version information.Verify Fix Applied:
Confirm version is 1.0.5 or higher in application interface and test authentication bypass attempts fail.📡 Detection & Monitoring
Log Indicators:
- Multiple failed authentication attempts followed by successful access
- URLs containing encoded characters or path traversal patterns
- Access to sensitive file paths in web logs
Network Indicators:
- HTTP requests with URL-encoded path traversal sequences
- Unauthenticated access to administrative endpoints
SIEM Query:
web.url CONTAINS "%2F..%2F" OR web.url CONTAINS "%252E%252E" AND dest_ip = [InfraSuite_IP]