CVE-2025-12793

7.8 HIGH

📋 TL;DR

This vulnerability allows a local attacker to execute arbitrary code by tricking AsusSoftwareManagerAgent into loading a malicious DLL from a controlled location. It affects systems running vulnerable versions of ASUS software management tools. Attackers need local access to the system to exploit this flaw.

💻 Affected Systems

Products:
  • AsusSoftwareManagerAgent
Versions: Specific versions not detailed in advisory; all versions before security update are likely affected
Operating Systems: Windows
Default Config Vulnerable: ⚠️ Yes
Notes: Requires local access to system; ASUS systems with MyASUS software installed are vulnerable.

📦 What is this software?

⚠️ Risk & Real-World Impact

🔴

Worst Case

Full system compromise with administrative privileges, data theft, ransomware deployment, or persistent backdoor installation.

🟠

Likely Case

Local privilege escalation leading to unauthorized software installation, configuration changes, or credential harvesting.

🟢

If Mitigated

Limited impact due to restricted user permissions, application sandboxing, or security software blocking suspicious DLL loads.

🌐 Internet-Facing: LOW - Requires local system access, not directly exploitable over network.
🏢 Internal Only: HIGH - Local attackers or malware with user-level access can exploit this for privilege escalation.

🎯 Exploit Status

Public PoC: ✅ No
Weaponized: UNKNOWN
Unauthenticated Exploit: ✅ No
Complexity: LOW

DLL hijacking attacks are well-understood; exploitation requires placing malicious DLL in search path.

🛠️ Fix & Mitigation

✅ Official Fix

Patch Version: Version included in 'Security Update for MyASUS'

Vendor Advisory: https://www.asus.com/security-advisory

Restart Required: Yes

Instructions:

1. Open MyASUS application 2. Navigate to Settings/Update section 3. Check for and install 'Security Update for MyASUS' 4. Restart system as prompted

🔧 Temporary Workarounds

Restrict DLL search path

windows

Use application control policies to restrict where AsusSoftwareManagerAgent can load DLLs from

Windows Defender Application Control or similar policy: Restrict DLL loading to trusted directories only

Remove vulnerable software

windows

Uninstall AsusSoftwareManagerAgent if not required

Control Panel > Programs > Uninstall AsusSoftwareManagerAgent

🧯 If You Can't Patch

  • Implement least privilege: Run AsusSoftwareManagerAgent with minimal necessary permissions
  • Monitor for suspicious DLL loading events using Windows Event Log or security software

🔍 How to Verify

Check if Vulnerable:

Check MyASUS version and verify if security update is installed via application settings

Check Version:

Check MyASUS > Settings > About or Control Panel > Programs for version information

Verify Fix Applied:

Confirm MyASUS shows latest version and no security update pending in settings

📡 Detection & Monitoring

Log Indicators:

  • Windows Event ID 4688 (process creation) for AsusSoftwareManagerAgent loading DLLs from unusual paths
  • Security software alerts for DLL hijacking attempts

Network Indicators:

  • Not applicable - local attack only

SIEM Query:

EventID=4688 AND ProcessName="AsusSoftwareManagerAgent.exe" AND CommandLine CONTAINS "DLL" AND NOT (ImagePath CONTAINS "Program Files" OR ImagePath CONTAINS "Windows")

🔗 References

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