CVE-2025-58097
📋 TL;DR
LogStare Collector's installation directory has insecure permissions allowing non-admin users to modify files. This enables privilege escalation where attackers can execute arbitrary code with administrative privileges. All LogStare Collector installations with default permissions are affected.
💻 Affected Systems
- LogStare Collector
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Full system compromise via arbitrary code execution with administrative privileges, enabling lateral movement, data theft, and persistence.
Likely Case
Local privilege escalation leading to administrative control over the LogStare Collector system and potential access to collected log data.
If Mitigated
Limited impact if proper access controls and monitoring are in place, though privilege escalation risk remains.
🎯 Exploit Status
Exploitation requires local access to the system but is straightforward once access is obtained.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Check vendor advisory for specific patched version
Vendor Advisory: https://www.logstare.com/vulnerability/2025-001/
Restart Required: Yes
Instructions:
1. Review vendor advisory at provided URL. 2. Download and install the patched version of LogStare Collector. 3. Restart the LogStare Collector service. 4. Verify permissions on installation directory are properly restricted.
🔧 Temporary Workarounds
Restrict Installation Directory Permissions
allManually adjust permissions on LogStare Collector installation directory to restrict write access to administrative users only.
Linux: chmod 755 /opt/logstare-collector
Windows: icacls "C:\Program Files\LogStare Collector" /inheritance:r /grant:r "Administrators:(OI)(CI)F" /grant:r "SYSTEM:(OI)(CI)F"
🧯 If You Can't Patch
- Implement strict access controls to limit local user access to LogStare Collector systems
- Monitor file modification events in the LogStare Collector installation directory
🔍 How to Verify
Check if Vulnerable:
Check if non-administrative users have write permissions to the LogStare Collector installation directory. On Linux: ls -la /opt/logstare-collector. On Windows: icacls "C:\Program Files\LogStare Collector"Check Version:
Linux: /opt/logstare-collector/bin/logstare-collector --version, Windows: Check version in installed programs or run logstare-collector.exe --versionVerify Fix Applied:
Verify that only administrative users have write permissions to the installation directory and that the patched version is installed.📡 Detection & Monitoring
Log Indicators:
- File modification events in LogStare Collector installation directory
- Unexpected privilege escalation events
- Suspicious process execution from LogStare directory
Network Indicators:
- Unusual outbound connections from LogStare Collector system
SIEM Query:
EventID=4663 OR EventID=4656 AND ObjectName LIKE '%LogStare Collector%' AND Accesses='WriteData'