CVE-2024-27773
📋 TL;DR
CVE-2024-27773 is a critical vulnerability in Unitronics Unistream Unilogic software that allows remote code execution by exploiting trust in less secure sources. This affects industrial control systems using Unistream devices with Unilogic versions prior to 1.35.227. Attackers can potentially take full control of affected systems.
💻 Affected Systems
- Unitronics Unistream Unilogic
📦 What is this software?
Unilogic by Unitronics
⚠️ Risk & Real-World Impact
Worst Case
Complete system compromise allowing attackers to execute arbitrary code, disrupt industrial processes, steal sensitive data, or pivot to other network systems.
Likely Case
Remote code execution leading to unauthorized access, data exfiltration, or disruption of industrial operations.
If Mitigated
Limited impact with proper network segmentation and access controls, potentially only affecting isolated systems.
🎯 Exploit Status
Based on CWE-348 and CVSS 8.8 score, exploitation is likely straightforward for attackers with network access.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 1.35.227 or later
Vendor Advisory: https://www.gov.il/en/departments/dynamiccollectors/cve_advisories_listing?skip=0
Restart Required: Yes
Instructions:
1. Download Unilogic version 1.35.227 or later from Unitronics official website. 2. Backup existing projects. 3. Install the update following vendor instructions. 4. Restart affected systems. 5. Verify successful update.
🔧 Temporary Workarounds
Network Segmentation
allIsolate Unistream devices and Unilogic software from untrusted networks and internet access.
Access Control Restrictions
allImplement strict firewall rules to limit access to Unilogic systems only from authorized management stations.
🧯 If You Can't Patch
- Implement strict network segmentation to isolate vulnerable systems
- Deploy intrusion detection systems to monitor for exploitation attempts
🔍 How to Verify
Check if Vulnerable:
Check Unilogic software version in Help > About menu. If version is below 1.35.227, system is vulnerable.Check Version:
Check Unilogic GUI: Help > About menu displays versionVerify Fix Applied:
Verify Unilogic version is 1.35.227 or higher in Help > About menu.📡 Detection & Monitoring
Log Indicators:
- Unusual network connections to Unilogic ports
- Unexpected process execution on Unistream devices
- Authentication failures or unusual access patterns
Network Indicators:
- Suspicious traffic to Unilogic management ports
- Unexpected outbound connections from Unistream devices
- Anomalous protocol usage
SIEM Query:
source="unilogic" OR device_vendor="Unitronics" AND (event_type="connection" OR event_type="process_execution") AND severity>=high🔗 References
- https://claroty.com/team82/blog/new-critical-vulnerabilities-in-unitronics-unistream-devices-uncovered
- https://www.gov.il/en/departments/dynamiccollectors/cve_advisories_listing?skip=0
- https://claroty.com/team82/blog/new-critical-vulnerabilities-in-unitronics-unistream-devices-uncovered
- https://www.gov.il/en/departments/dynamiccollectors/cve_advisories_listing?skip=0
